Furnace burner tubing and pipe how to install

Tubing need a fuel supply system, piping is provided with a filter, control valves, check valves, valves, high and low pressure switches, shut-off valve,Safety Valve and then into the burner, the former mouth requirements for hose connection.
Trachea into gas and air, if the air is the combustion air blower, soft connection, low pressure switch, then hose into the burner.
Burner is the fuel and air mixture combustion discharged in a certain way means collectively.
Burners by type and application areas divided industrial burners, burner, civil burners, several special burner.
Industrial burners known burner, many types of specifications type, there are oil, gas, coal and several major categories. Applications is very broad, requiring fuel combustion to heat the material or the reaction of industrial applications need to use the burner.
Burner, also known as integrated burner to oil and gas-based. General application in small and medium-fuel boilers, fuel hot air oven and small fuel furnace.

Stable combustion burner "What does that mean?

Efficiency of the boiler rated load / boiler / burner environmental correction coefficient determines the power of choice of the gas burner. Power agas Burner Valves range is a gas valvemodel set later, after certain allowable gas pressure, corresponds to a flow rate range, and the greater the gas pressure, the greater the flow. Visible: the burner can be equipped with different valve, with a valve flow at different gas pressures also different boiler rated load, environmental and boiler efficiency decisions burner power, gas flow decided burner power. Set the gas flow in gas pressure determined, you can select the appropriate gas valve, the gas valve at the gas pressure must be covered and larger than the traffic. "Gas train gas mass flow should enable the boiler operation at rated load, stable combustion burner," what it means.

Gas Burner Valves action principle

gas Burner Valves action principle

The gas coming from the direction of the first one is the gas safety valves, the second is operated valve, double solenoid valve is to set up a double insurance, in case of a solenoid valve leak, and there is another to ensure that does not leak. To ensure this, there are no two solenoid valves are bad, the actual operation between the two solenoid valves is also equipped with leak detectors, once there is a valve leak, burner can not open the solenoid valve, and thus not start burner, the solenoid valve must be repaired or replaced, ensure two solenoid valves do not leak before starting the burner.

Ignition failure

Gas water heater ignition pulse ignition firing pin but not the main burner ignition failure:
Low battery 1. The gas water heater or battery connection is bad.
2. hot gas water heater switch is bad.
3. The Water Heater Gas Valves is bad or there is the phenomenon of the card.
4 .. gas water heater circuit board has contact failure or damage phenomenon.
5. insufficient water pressure or water pressure micro switch bad.
6. above the fault can not be excluded, please professional maintenance personnel to repair or service call to repair.

It is to shut off the gas stove gas tank valve or the first main valve?

First off gas gas stove valves, then close the main gas tank valve!
Stove tempering problem mostly occurs on artificial gas (gas) stove (liquefied petroleum gas, natural gas stove safety tempering phenomenon is rare). Artificial gas stove and no valve. Tempering: When the speed of the gas leaving the fire hole is less than the burning speed, the flame will be retracted into the fire hole inside, resulting in a mixture in the combustion burner, heating, undermine the primary air ejector, and the formation of incomplete combustion. Tempering will destroy combustion stability, and easy to damage the stove.
Tempered with a degree preheated air coefficient, gas source nature, components and gas-air mixture, the fire hole diameter, fire orifice discharge velocity.

How to adjust the valves on the gas stove

1, the principle of the two intake gas valve is to control the air volume, helps regulate the fire burning.
2, if you turn off two Gas Valves, no air enters the combustion, the flame will be extinguished or incomplete combustion waste gas source.
If the valve is adjusted to the maximum amount of wind caused by bad Assembly source of ignition and gas waste.
3, such as a close one on, two out of the ring of fire because the stove, close, and open a case with the previous combustion occurs.
4, adjusting the good will leak but there will be inadequate combustion waste gas source, adjust the flame when you use the color blue fire better.

Burner maintenance

(1) Regularly clean worrying too much.
(2) to maintain a sense of photoelectric eyes clean.
(3) at regular intervals, cleaning the interior of the burner.
(4) near the burner temperature should not be too high, otherwise it will affect the normal operation or damage to the burner means, especially damage to the control box.
Nearby (5) the burner should be kept clean, can not place flammable debris.
(6) some components unstable voltage will cause damage to the burner.
(7) to avoid the burner is water splashes.
  (8) regularly check the gas Burner Valves, After the gas safety burner valve used remember to turn off.

Large flange standard in Europe and the United States

The DN1500 DN2000 Flange European standards in the Americas, but there is no standard, reflecting the maximum size of. hose adaptersAlthough the material is the same, but the standards are different, whether it is in the form of a bolt hole and the sealing surface and the theoretical weight is different. The European system 20593 and 20595 specifications are the same, but the rough 20601 standard is the same, because of what, what kind of support system, large flange blind flange.hydraulic adaptors

How to control the noise of stove valve

The cavitation bubbles within the contact surface with bubbles isolating stove valve and hardened valve and seat surface will be the impact of cavitation, while adding body outlet bushing in place to protect the bullied eclipse the impact site. stove valves at the outlet bushing plus body as a supplement designed to prevent the liquid collision in the top burner valve  body wall, protecting the valve by scouring the site, at the same time weaken some noise.
Plus silencer to the partial pressure of the burner safety valve and sub-noise. This approach is essentially the cavitation condition into a flash conditions to deal with, so applications need to simultaneously trim do to protect hardened Gas Burner Safety Valve.

General rules of safety valve selection

The decision by the Pilot Safety Valves of the nominal operating pressure, operating temperature is determined by the valve temperature range, the value calculated by the constant pressure of constant pressure valve determines the scope of the spring or lever, and then decide valve material and based on the use of media structure type, and then calculate the safety valve throat diameter according to the safety valve Discharge. As a general rule the safety valve of choice.
(L) hot water boilers generally is not closed with a wrench Weiqi safety valve.
(2) steam boiler or steam pipe generally is not closed with a wrench safety valve.
(3) water and other liquids incompressible medium Weiqi general use closed safety valve, or safety relief valve.
(4) High-pressure water for general use closed safety valve, such as high pressure feedwater heaters and heat exchangers.
(5) gas and other compressible medium for general use closed safety valve, such as cylinders, gas pipelines.
(6) E - class steam boiler safety valve for general use static weight.
(7) large diameter, large displacement and high pressure systems typically use pulse valve, such as temperature and pressure reduction devices, power plant boilers.
(8) transportation of liquefied gas tanker train car tanker, tanks and other general use built-in safety valve.
(9) hydraulic valve tank top general, to be used in conjunction with a breathing valve.
(10) underground water or gas pipelines generally use pilot safety valve.
(11) the liquid return pipe LPG station pump tank outlet safety valve for general use.
(12) negative or operation may have negative pressure systems generally use vacuum relief valve.
(13) back pressure and toxic volatile flammable container or piping systems are generally used bellowssafety gas valve.

Burner Features

Burner Features:

High performance centrifugal fan three-dimensional flow theory advanced design, air volume, low noise, smooth operation.

Burner shell is made of aluminum alloy, light weight, high strength.

Hough uses a pair of flange connected to the boiler or the combustion chamber fixed axial position is adjustable, easy installation, a wide range.

By adjusting the relative position of the amount of combustion air and combustion head for optimal combustion parameters.

No need to remove the burner, the burner tip of the mixing device can be removed easily for maintenance.

Servo motor and adjustable air agency regulating the combustion air flow, and when the burner outage, close the damper to reduce the furnace heat loss.

Adjustable combustion head includes: stainless steel nozzle and steel deflector disk and other components.

Manifolds include: operation and Safety Valve Burner Valve, Gas Control Valve, minimum pressure switch, pressure regulator and gas filter.

Operate the control panel include: stop / start switch, high and low power output selector, operation and fault indicator.

Gas safety valve

gas valve spring and the rod two categories. Another impulse safety valve,Pilot Safety Valves, safety valve switch, safety release valve, safety valve and other static weight. Spring-loaded safety valve spring force and rely mainly on the work of the spring-loaded safety valve in closed and not closed, generally flammable, explosive or toxic media should use closed, steam or inert gas can be selected is not closed type, spring-loaded safety valve in there with a wrench and without wrenches. The main role is to examine the extent wrench flexible valve flap, and sometimes can also be used manually with emergency relief

Safety valve operating matters

First, to keep clean Gas cooker safety valve to prevent the valve spring stalks, etc. are full of dirt or corrosion grease to prevent the gas valve discharge pipe is clogged oil or other foreign matter; always check seal is intact, preventing the lever-type safety valve hammer loose or moved, preventing the spring-loaded safety valve adjustment screw is free to twist.
Second, the gas cooker safety valve after cleaning, you must re-commissioning.
Third, the safety valve should be used to clean light oil.
Fourth, after the beginning of the operational phase of commissioning, should be carefully observed the operation of the safety valve.
Five, found signs of valve leakage, should be replaced or serviced. Prohibit the use of increased load (eg adjusting screw on the lever or safety valve lever and hang heavy loads over tighten the spring-loaded safety valve) is the way to eliminate leakage.
Sixth, regularly check the operation of the safety valve leaks, jam and spring corrosion and other irregularities, and to observe the adjustment nut and adjusting ring set screw lock nut is loose, if a problem should promptly take appropriate measures .
Seven safety valve is installed outdoors should take appropriate protective measures to prevent the rain and fog, dust, rust and other dirt pollution and invasive valve discharge pipe, when the environment is below zero degrees Celsius, freezing should take the necessary measures to ensure safety valve reliability.

Classification of the gas valve

 gas valveversatility, variety, classification more. The total can be divided into two categories:
 The first automatic valve: to rely on the ability of the gas itself and self-acting valve.
 Such as check valves, control valves, pressure reducing valves and the like.
 The second category actuated valves: With manual, electric, pneumatic valves to manipulate the action. Such as gate valve, Bbq Gas Valves throttle, butterfly, ball, plug and so on.
 In addition, the valve classification there are several ways:
 According to the structure characteristics, in accordance with the closure member relative to the direction of movement of the seat can be divided into:
 1. The cross-sectional shape door: closed member moves along the seat center.
 2. Gate shape: Close the valve seat member is moved along the vertical center.
 3. cock and ball: closure member is a plunger or ball, rotating around the center line itself.
 4. Swing shape: Close the valve seat member around the outside of the shaft.
 5. disc: Close the disc member around the axis of rotation of the valve seat.
 6. spool-shaped: the closure member in a direction perpendicular to the sliding channel.

valve industry

Range Dual Safety Valves with the  Gas Grill Valves   industry, people claim it is different, there are closed-end and not closed. To ensure that no damage is enclosed discharge medium, the entire exhaust outlet along a predetermined, generally used for toxic and corrosive media. Including generally not used for toxic or corrosive media.

Stove burner valve structure constructed

Stove Top Burner Valve structure constructed:
1,lightweight aluminum alloy fan part;
2,high-performance centrifugal fan;
3,stove valves with the combustion air inlet flow regulator device;
4,with a variety of boiler flange mating flange slide, you can adjust the position of the burner extends into the furnace;
6,the air pressure switch to ensure the combustion air;
7,Gas train operation and safety valve, minimum pressure switch, pressure regulator and gas filter to form a complete portfolio.

Technical and performance characteristics of the gas burner safety valve

Technical and performance characteristics of the gas burner safety valve:
1, single, two runs (large / small fire);
2, gas burner valves can adapt to any type of combustion chamber;
3, air and gas mixing in the combustion head;
4, by regulating combustion air and combustion head, you can get optimal combustion parameters;
5, no need to remove the burner from the boiler, you can directly remove the mixing unit, easy maintenance;
7, you can select with the leak of gas train;
7, using a flange and one insulating seal for boiler connection fixed.

Qianshou Valve build strict quality with one thousand hands

Qianshou Range Top Burner Valve, absorbing new wisdom of human civilization in industrialized air and showing the nature of hero in business.
Qianshou Stove Top Burner Valve, build strict quality with one thousand hands; Qianshou Valve, the strength of one thousand hands condenses to a kind of united and pioneering spirit; Qianshou Valve, sincerely hope to handholding, looking into the broad future and set sail toward a better tomorrow.

Design and provide individualized cooker

The core of Qianshou is to design and provide individualized cooker and entire gas valve system solution for the customers after analyzing customers’ demand or potential demand, so as to create value for the customers. Meanwhile, through the combination of scale production and localized resource advantage, it reduces the production cost of gas cookers for sale and gains profit. For a long period of time, Qianshou Valve on one hand provides international well-known cooker factory with individualized gas valve design project ,on the other hand provides valve for these project, the customers not only can have systematic service, but also have individualized service. Today, insisting on such a core, taking industrial design as the means and combining with accumulated electronic and gas technology over the years, Qianshou takes a broad view on the domestic and foreign market to expand all over the world with an irresistible trend.

Qianshou gathers all the talents to create brilliance

Qianshou gathers all the talents to create brilliance. In Qianshou Valve, feel the passion and vitality. The wisdom and undisguised enthusiasm deduce the dream of every Qianshou person. Customer requirement is our purpose; efficiency is our life; 15-day sample sending and 35-day delivery is our objective. Professional management team controls the delivery of Qianshou. Huge production capacity ensures the Gas Burner Safety Valve of Qianshou. It is our purpose to ensure the Stove Top Burner Valve delivery time at the first time.

Qianshou gas valve master critical technology

Continuous innovation makes Qianshou gas valve master critical technology and ensures the products to take the lead in the same industry. The company does not only solve the common problem of high-temperature block and weak durability of gas safety valve, but also make the high-temperature resistance of the products reach 150℃. The durability reaches 100,000 times, far exceeding state and CE standard and hence making Qianshou products win at the beginning and take the lead in long term. Qianshou products make your products safer, more comfortable and more durable.

Strict quality management system is the quality assurance of products

Strict quality management system is the quality assurance of products. The company has passed ISO quality system certification, most of the Gas Control Valve have obtained CE certification and parts of the products have obtained CSA and SGS certification.
High-precision natural gas valves and inspection equipment is the key to ensure product quality. At present the company hold 5 high-precision rotary disk machines, 4 elevators, 20 high-precision numerical control machines and 5 imported high-precision inspection instruments of all types.

Ningbo Qianshou Valve Co.Ltd

Ningbo Qianshou Valve Co.Ltd which is the leading manufacturer of gas valve field in China, is located in the modernized port city on the coast of the East China Sea---Ningbo. The power of dream enables Qianshou Valve to stand out from the crowd.
The company has always dedicated to the research and manufacturing of plug valve, the products widely applied in cooker, oven and indoor or outdoor heater valve. At present, the annual productivity has reached 15 million pieces valves. the products have been selling to various countries such as Europe, Mid East, Africa, North America and so on, it has become one of the largest plug valve manufacturers in China.

Hose connector to pay attention to

Said pants specializing in the production of hoses, fittings, high pressure hose, often some of the problems of the customers in the use of accessories to meet the pants here, we tell you pants accessories should pay attention to three questions:high pressure hydraulic fittings
His pants accessories carefully open the package, do not let the tube interrupt, in order to avoid tangled, and then cut when the wire is less or more, need to wear a harness or cable length, try to use the hard disk trousers connector, so when relatively simple wear harness over the water or other liquids, cut tubes filled with water to try to see does not leak, so do not split.
Is a large mechanical or automotive wiring harness, it is recommended and pants to cut the use of open longer to save more due to the large machine harness is not likely to occur: such as the use and cut directly to the comparative work When the lines in the most secure with tape.
If water is waterproof and can be accompanied by a high-pressure hose connection, if you have to use the national standard plug in the open, such as high-pressure hose should be used and the standard model, but also when the pipe and plug-ins inaccurate or pipe do not go to most of the cards, and so on. Tube should we go slightly harder, this card is a plug-in, fall on the train.metric hydraulic hose fittings

Ways to avoid flashback

Ways to avoid flashback：
The sudden closure of the stove top burner valve, with the flame goes out will backfire noise, coke oven gas than natural gas and liquefied petroleum gas are more prone to temper noise. Tune wind deflector open through the large, so the primary air coefficient is too large, easily lead to tempering, by adjusting the adjustable air board can be ruled out. Gas supply pipes, gas burner valve, burner nozzles, fire sub L Levin blocked rice dregs, carbon black or other substances, insufficient gas pressure in the gas cylinder, the gas will reduce the flow rate, resulting in tempering, can by cleaning the dirt, inflatable avoided.

Solution Turn off the heat for a long time can not be closed gas

Solution Turn off the heat for a long time can not be closed gas burner valve：
Flameout protection device in the transmission mechanism is not working properly blocked and will not be shut gas burning appliances should first turn off the gas stove valves, actuator and check the adjustment means if there is an obstacle, if any, to be cleared. Flameout protection device is not protected by the state will not turn into the air, then you can repeat the stove knob.

Gas stove leak causes

Gas stove leak causes:
Stove connection hose rupture long-term use of aging or because the appliance is not connected to a good cause gas leak, you should replace the hose or hose end fastened with hose clamps. Gas stove unlit, will smell the gas odor, this time window ventilation gas to be blown before ignition. Sealing material is dried, depleted or aging can cause the appliance gas safety burner valve seals Mifengbuyan caused the leak, replace the seal material until the replacement valve, the valve leaks after installation testing.

Gas stove ignition causes of failure

Gas stove ignition causes of failure:
Valve does not open the stove can cause ignition failure, Whether the ignition is turned on the stove top burner valve. Since moving stove will stove connection pipe kink, crush, or because the gas contains more condensate hose caused by blocked air barrier, ignition failure, by checking whether the hose compression, bending and correcting or by replacing new Hose troubleshooting. After the free standing gas stoves just replace the connection hose, due to mixing of air in the pipe, it can cause temporary ignition failure, through multiple ignition, air drain pipe can be successful ignition.

Double gas burner safety valve

Bicyclic fire with dual burner gas stoves with double gas burner safety valve allows the state at the time of the fire protection, fire burner valve leading to the outer stomatal closure, only the inner fire breather, saving gas, convenient to use. Gas stoves should be part of desktop and universal design straight intake pipe opening two structures to meet the needs of different location to install the hose; the design of the intake pipe joints mouth, to consider dismantling the hose after a larger force and collisions Easy Air leaks; T-tube diameter, the inner diameter of the valve body and tap the pore diameter pipeline at different gas source designed to prevent the amount of gas supply due to insufficient or excessive deterioration of combustion gas supply.

Often switch gas valve will cause the gas valve leak

Under normal circumstances would not, but whether the burner valve loose aging ah long time be sure to check the next! Below are notes, are interested can look after you are finished using the water heater be sure to turn off the heater valve. Always check the gas supply pipe (rubber hose) is intact, with or without aging, crack. Attention to regular replacement of rubber hose, frequently at the hose connections with soapy water to check for bubbles appear, to determine whether there is leakage, try to stop the leak. Gas Burner Safety Valve Precautions First: When gas water heater gas water heater must ensure that ambient air circulation, ensure good ventilation of the entire environment, conducive to the exhaust emissions. Second: use of time not too long, especially when the family use, should stagger the time, so that the cooling gas water heaters and exhaust emissions to the outdoors. Third: NOTE gas water heater when the case temperature will rise, careful not to touch when in use.

Application of the Gas Burner Safety Valve

Gas Burner Safety Valve is a device for supporting the safety of new gas pipeline projects. It used to cut, turn, regulate the gas pipeline, has good control properties and close the sealing performance. Gas valves are widely used for a variety of city gas pipeline network system media pipeline gas, liquefied petroleum gas, natural gas and oxygen. Drive the form of a manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic actuator linkage, enabling remote control and automation. For a variety of city gas medium pipeline gas, liquefied petroleum, natural gas and oxygen.

QUS Range Top Burner Valve size and type

Range Top Burner Valve size and type, shall meet the requirements of piping design documents.
1, the gas top burner valve type should be specified in accordance with national standard code requirements. If the enterprise standards, should be specified instructions model.
2, valve job pressure ≥ pipeline working pressure, without affecting the price of the premise, the valve can withstand working pressure should be greater than the actual pipeline working pressure.
3, the burner valve manufacturing standards, should explain the basis of the national standard code, if the file should be attached to business enterprise standards, procurement contract.

The valves are the main components fraud stove

The valves are the main components fraud stove, desk-top stove, for example, taps and gas safety burner valve by the body two parts, the cock cone has two sets of vent holes Group 1 air vent is supplied to the igniter, and the second Group vent is supplied to the burner gas supply. Two vent valve respectively leading to the ignition device and the burner gas supply line. When the knob is pressed in the end, the cock is rotated 90 degrees to the left, then the first group and the gas burner valves leading to the ignition vent port means of communication, to the ignition gas, the second group of the main vent and vent valve to the burner the pores communicates gas, an ignition device action ignition, to ignite the burner, the maximum amount of gas in the state at this time, the heat maximum flame. After the release knob, ignition pores in the spring and the valve tap is turned off, the ignition end. When the knob is rotated to the left continues to gradually close the tap main pores small flame gradually reduced to 90 degrees with the main gas valve to the burner pores open, the second set of vent holes in the valve body to the combustion fire the pore connectivity, because of the small amount of gas fire hole flame decrease in fire protection status. Bicyclic fire with dual burner stove with double air valve allows the state at the time of the fire protection, leading to the gas control valve closed, only the inner fire breather, saving gas, convenient to use.

Gas burners safety valve of understanding

Gas coming from the direction of the first one is the safety valve, the second is operated valve, double solenoid valve is set to double insurance, in case of a solenoid valve leak, and there is gas burner valves to ensure that does not leak. To ensure this, there are no two solenoid valves are bad, the actual operation between the two solenoid valve is also equipped with leak detector, if there is a leak valve, the burner valves can not open the solenoid valve, and thus not start burner, repair or replace the solenoid valve must ensure two solenoid valves do not leak before starting the burner. However, gas pressure switch (high and low voltage protection) is not the valve is a pressure sensing switch, if the gas pressure is low, low voltage protection switch because of low pressure, a mechanical spring or similar mechanism would disconnect switch, this switch is a string programmed in burner main power circuit, after low pressure protection switch off the burner does not start.

Safety valve - Development

Safety valve, the valve of a special branch of the family, it's particularity is due to a safety valve that is different from other valves only acts as a switch, more importantly protect the safety of the device. With the rapid development of China's economic construction, the project works with a pressure control equipment is increasing. Given the need for pressure relief devices, safety plays a crucial role in the protection device process. Boiler safety valve is an important safety accessories pressure vessels and other equipment under pressure. Gas Valves For Patio Heater (also known as pressure relief valve) is automatically open and close depending on the pressure system operating pressure (temperature), usually installed in equipment pipeline protection system security or closed system. When the equipment or pipeline pressure or temperature exceeds a set pressure relief valve, pressure relief or cooling automatically open to ensure that equipment and the pipeline medium pressure (temperature) is below the set pressure (temperature), protective equipment and piping work, prevent accidents and reduce losses. The main Bbq Gas Valve is widely used in: steam boilers, LPG tankers or liquefied petroleum gas rail tankers, oil wells, high pressure bypass steam generating equipment, pressure piping, pressure vessels. Valve general form of the structure is divided into spring safety valve and lever safety valve, pulse valve, where the most common spring safety valve; press connection into threaded flange valve and safety valve. Valve diameter are generally not large, the most common are between DN15mm-DN80mm than 150mm generally called large-diameter Parts Oven Safety Valve. 2013 valve industry market scale, this is an indisputable fact. Our all-copper sealing valve can have the number of qualified production safety valve business is not much, because the safety valve is part of the special equipment industry, the State Administration of Quality Supervision review of the application of more stringent qualification, and great safety valve market demand, no doubt to The qualified production safety valve business has brought more wealth opportunities.

How should adjust the discharge pressure and the safety valve reseating pressure

1. For the recoil safety valve plate and seat adjustment ring structure is the use of seat adjustment ring to be adjusted. High pressure safety valve cover valve, hydraulic valve, pressure relief safety valves.
First, unscrew the adjusting screw ring, and then inserted into the tool such as a screwdriver from the screw hole is exposed, toggle adjustment ring on the teeth, so that adjustment ring turning left. When the adjustment ring to the left for the counterclockwise rotation, its elevated position, the discharge pressure and reseating pressure will be reduced. Conversely, when the adjustment ring to the right rotates clockwise, reduce its position, discharge pressure and reseating pressure will be higher. Each adjustment, adjustment ring rotation rate should not be too large (usually 2-3 teeth can rotate). After each adjustment screw should be fixed, it ends in the adjustment ring groove between two teeth, both to prevent rotation of the adjustment ring, not on the adjusting ring radial pressure. For security purposes, prior to toggle adjustment ring, it should be appropriate to reduce the inlet pressure Natural Gas Safety Valve (generally should be less than 90% of the opening pressure) to prevent sudden opening during adjustment of the valve, causing the accident.
2. For having upper and lower adjusting ring (oriented sets and have a seat adjustment ring) patio heater gas valve structure, the adjustment more complex.
The adjustment ring is used to change the flow of media in the valve flap folding rear side reflection angle, thereby changing the size of the fluid forces, in order to adjust the pressure back seat. Increase the adjustment ring, the turning angle decreases, the fluid force is decreased, so that the back seat pressure increased. Conversely, when the adjustment ring on the lower, back seat pressure is reduced. Of course, the adjustment ring at the same time changing the pressure back seat, also affects the discharge pressure, which increases the adjusting ring so that the discharge pressure has increased, reducing the adjustment ring so that emissions decreased, but the degree of impact is not back Pressure on as obvious.
By adjusting the ring to change the size of the Gas Burner Safety Valve between the channel and adjusting ring, thus changing the initial valve opening pressure between the valve and adjusting ring chamber accumulate medium degree of size. When elevated seat adjustment ring, the degree of pressure build-up increases, so that the valve opening ratio stage decreases rapidly to a sudden sharp turn. Therefore, increased discharge pressure valve seat adjustment ring can be reduced. It should be noted that the seat adjustment ring should not rise too close to the valve. As leakage at the sealing surface can lead to premature valve suddenly opened, but because this time the media pressure is not enough to keep the valve in the open position, the valve was then closed, then valve occurrence frequency hopping. Seat adjustment ring is mainly used to reduce the proportion of valve, open stage and adjust the discharge pressure, but also have an impact on the pressure back seat.

Importance of safety valve dynamic stability

Range Top Burner Valve for when a sudden rise in the protected system operating pressure, resulting in an additional force elements acting on feelings, so that the element moves to open a gap in the valve passage, the medium is discharged through the gap, pressure drops.
Dynamic stability safety valve directly affects the safety valve discharge capacity and service life of components, discharge channel cross-sectional area and the discharge capacity of the Stove Top Burner Valve of the shock would reduce the safety valve, and the valve seat and the same opening height limit collision bits will damage the valve sealing surfaces and other parts, two acting safety valve most likely to produce valve shocks.
Safety valve dynamic instability is mainly due to the following reasons: safety valve discharge capacity is more than a Gas Valve For Water Heater into the media flow, spring just had big, big back pressure valve and the outside world in the chamber when the valve is opened Dynamic interference.

External pilot valve opening and closing parts of factors

Pilot valve is a safety valve. Pilot valve opening and closing parts by the external force is normally closed state, when the media pressure equipment or pipeline increases, exceeds a predetermined value open automatically discharged outside the system through the media to protect the pipeline or equipment medium pressure exceeds values ​​specified.
Gas cooking valve is mainly used for boilers, pressure vessels and piping, control pressure does not exceed a predetermined value, for personal safety and equipment operation plays an important protective role. All kinds of safety valve should be mounted vertically, the outlet valve should be no resistance, to avoid compression phenomenon. Range Dual Safety Valve before installation should be devoted to test and check their tightness. The use of the safety valve should be checked regularly.

Different types of safety valve requirements

With Gas Grill Valves requirements are different, there are closed-end and not enclosed. Enclosed discharge medium that is not compromised, the entire exhaust outlet along a predetermined, generally used for toxic and corrosive media. Enclosed is generally not used for toxic or corrosive media.

How to choose a safety valve

Safety valve, classification number, according to the structure to points, can be divided into a spring-loaded safety valve and lever safety valve. In case of large capacity requirements, harboring a pulse valve, also known as the pilot valve. According to emissions to sub-divided into a safety valve and inching valve. According to the structure and the loading mechanism to sub-divided into hammer lever Barbecue Valves, spring-loaded valve and pulse valve three. By way of medium discharge points, it is divided into fully enclosed valve, semi-closed valve and open valve three. According to the size of the valve opening is divided into spring Enlight closed high-pressure safety valve two kinds of gas stove valves and springs.
Not only to understand how the selection Oven Safety Gas Valves safety valve above classification, but also understand the media's safety valve, if there is corrosion, temperature, pressure, size (working pressure and opening pressure) interface is the use of threaded or flanged.

Segmentation and differences introduction valve

A safety valve is a closed system with the Gas Grill Control Valve opening and closing parts of its external force is normally closed by the state, when the medium pressure closed system has increased beyond the safety valve automatically open when a predetermined value, through to the outside of the system medium pressure to reduce emissions system to prevent damage in the system of high pressure medium system. Safety valves are automatic valves, mainly used in boilers, pressure vessels and air conditioning, solar pipes, control pressure does not exceed a predetermined value, for personal safety and equipment operation plays an important protective role. (1) gas cooker safety valve. An automatic valve. It does not use any force, but the use of the medium itself to discharge the grip of a nominal amount of fluid in order to prevent the system pressure exceeds a predetermined safety value; when the pressure is back to normal, the valve closed again and prevent the media continue to flow.

Flash condition noise stove top burner valve

    Blocking flow through the gas burner safety valve when a flash occurs, the bubble generated downstream adjustment Gas Burner Safety Valve will produce erosion by scouring the spool surface will smooth polished appearance, this
    From the mechanism of the gas burner safety valve to flash the (PVC <PV and P2 <PV) adjustment, the flash can not be eliminated, only to find ways to reduce the harm flashing on the stove valve, thereby reducing noise. Commonly used method is the region of the material to be washed surface hardening treatment, surface hardening treatment methods include three types:
    (1) The seat and the gas brass safety valve surface spraying, can be sprayed tungsten carbide, chromium carbide  to increase the hardness and other parts subject to erosion.
    (2) the surface of the stove valve seat and valve body surfacing treatment, usually by welding to increase the hardness of erosion site.
    (3) the valve seat and valve surface nitriding treatment to improve the surface hardness and wear resistance, corrosion resistance.
    By adjusting the burner valve surface hardening treatment can improve the hardness of the stove valve, the control valve to enhance the ability of anti-flash "erosion", the corresponding noise will be reduced 5 ~ 10dB. To further reduce noise, can be used with the methods used are: ① improve the pipe wall thickness or adding sound insulation layer in the pipe wall. Regulating burner valve the same diameter, which each additional level of pipe wall thickness, the measured value of the noise can be reduced by about 2dB; ② pipe plus sound-insulating layer to reduce the substance of pipe wall thickness also increases a measure of noise transmitted to the environment; ③ the Safety Valve Burner Valve after the installation of the online muffler, online muffler can absorb some of the sound energy, and after the formation of back pressure valve, which can effectively reduce the noise level of about 25dB.

Stainless steel Range Top Burner Valve

Stainless steel pressure Range Top Burner Valve:
1. Uses: Widely used in aviation, aerospace, petroleum, chemical, metallurgy, power, paper, wood, textile, construction, pharmaceutical, food, tobacco, transportation and other industries.
2, features: corrosion resistance, high temperature resistance, low temperature (-196 ℃ ~ + 420 ℃), light weight, small size,Range Valves softness.
Silicone tube:
4-50MM any length within the range of diameters, cold-resistant, high temperature, non-toxic and tasteless food hygiene, plus fiberglass silicone tube, its moisture and pressure resistance stronger. Burner Valve can be temperature 300 ℃, the main specifications for the inner diameter of 9.5 and 12.7, wall thickness 3.5, pressure ≤0.3MPa, for peristaltic pump inlet tubing through the pump head rolling mill and a vacuum-driven fluid Burner Valve flow.

Types of burner valve and a variety of applications in the life

High temperature, corrosion resistance, high pressure
Because Stove Top Burner Valve product uses a special high-grade PTFE hose, high temperature braid and Japan's advanced technology Twill spiral stainless steel hose, suitable for high temperature, corrosion, a special high-pressure environment.
The gas Burner Valves under 3kg / cm2 pressure inside the hose can withstand 250 ℃ high temperature steam, while the skin temperature does not exceed 60 ℃, to ensure the safety of operations.
This product can be used normally under 10kg / cm2 steam pressure.
⑵. Light weight, soft and strong
This product is treated with a special assembly, length 2m (including both ends of the joints) hose, weighing only 500 grams. Greatly reduce the intensity of burner valve the operator, while the softness of strong, free bending, definitely not dead fold impede ventilation.
⑶. Anti-destructive
This product is due to the use of burner valve Twill self-locking stainless steel spiral Range Top Burner Valve protection, can withstand 180kg pull, no damage during normal use.
⑷. Durable
Comprehensive advantages of this product, make life much more than the existing types of steam hose, long-term use does not have to be replaced, greatly reduce the cost and improve efficiency, economical and practical.

The appliction of stove top burner valve

Stove Top Burner Valve, cloth steam:
1. Application: Suitable for conveying no higher than 150 ℃ of saturated steam or hot water.
2, features: layer has good heat resistance, burst pressure hose is not less than 10 times the working pressure.
Steam hose clamping cloth stove top burner valve armor:
1. Application: Suitable for conveying no higher than 150 ℃ of saturated steam or hot water.
2. Features: Hose outer surface of galvanized metal spiral wound, can effectively increase the strength of the tube, to improve the bearing capacity. Working conditions applicable to the complex, have higher requirements for the safe operation of occasions.
Safety Valve Burner Valve:
1. Uses: Widely used in chemical, mechanical, electronic, electrical, military, aerospace, pipeline, oil, textile, electrical insulation, environmental protection and other economic fields.
2. Features: Exterior organized crime, no mechanical impurities high strength, excellent chemical stability, corrosion resistance, sealing, self-lubricating nonstick, electrical insulation and excellent resistance to aging, -60 ~ 250 ℃ in long-term use, having excellent corrosion resistance and reliable for transporting highly corrosive media at high temperatures. And can be processed into O, S-type,type and other shapes, quality is guaranteed.

Gas Burner Safety Valve

First, Gas Burner Safety Valve: Fabric delivery hose from the inside layer, multi-layer and the outer wrapping cloth cover. Cloth attract hose from the inside layer, multi-layer cloth wound, spiral steel wire reinforcement layer and cover.
Second, characteristics: small hose with a diameter tolerance, oil, heat and other excellent performance, lightweight, durable soft tube, etc; minimum burst pressure of four times the working pressure of the hose.
Third, use: all types of cloth wire conveyor (or attract) hose is different according to the transmission medium, the choice of appropriate materials, reasonable structure design, high quality, durable, is a method used to lose gas burner safety valve, suction (negative pressure) flexible hose and a variety of liquid viscous fluid materials such as powdery solid medium.

Range Top Burner Valve noise sources

There are three main range valve noise sources:
    (1) itself vibration noise. Medium flows through the burner valve spool will produce erosion, lateral movement of the spool produce unstable even resonate with the device. Due to the use of Range Top Burner Valve vibration is inevitable, so this kind of noise generation is also inevitable. Note that when you try to install the valve upright on a horizontal pipe installed to reduce noise generated due to the spool instability, usually this kind of noise is very small, resulting in little impact.
    (2) Aerodynamic noise. When contracted flow medium flows through the burner valve section, the flow cross section due to contraction of the flow path blocking sudden changes occur turbulence, while the medium flow rate is changed, the mechanical energy is partially converted liquid noise acoustic energy generated by known aerodynamic Science noise. Because fluid Gas Burner Safety Valve when pressure is inevitable, so the aerodynamic noise can not be completely eliminated. Usually this type of noise level is small, resulting in little impact.
    (3) Hydrodynamic Noise. Fluid control valve in the rapid formation of blocking flow velocity. Blocking flow refers to the incompressible or compressible fluid flows through the stove burner valve when the maximum achievable flow state. At a fixed inlet conditions, when the valve before the pressure kept constant while gradually reducing the pressure after the valve, the flow through the flow Stove Top Burner Valve increases to a maximum limit, and then continue after the pressure reducing valve, the flow rate will not increase, the limit that is blocking traffic flow. Blocking the flow of liquid can easily cause flash cavitation, accompanied by strong noise generation, this noise is usually up to about 100dB, resulting in a large impact.

The selection of pneumatic control valve in chemical process

     Adjust the selector valve type and structure
     Depending on its stroke, pneumatic control valve can be divided into two different types, namely, the angle straight trip itinerary, according to the structure points, pneumatic control Range Top Burner Valve can be divided into the butterfly, angle valves, sleeve valves, ball valves, diaphragm valves, Globe valves and other types.
     Which, through single-seat control valve is the process of using the minimum amount of valve leakage, flow performance ideal, simple structure, can be used to leak demanding area, but its passage is relatively complex, which to some extent limit the scope of its use.
     Through safety gas aluminum valves is through single-seat control valve opposite a valve, there is no strict requirements for leakage, suitable for use in large-area working pressure at present, through engine regulation is our most extensive range of applications a control valve.
     Sleeve valve can be divided into two types, namely double sealed sleeve valve with single seal sleeve valve, the Gas Top Burner Valve sleeve has a good stability, low noise, easy accessibility, but its price is relatively high, and higher maintenance requirements Therefore, using the range are also some limitations.
     Diaphragm flow path is simple, its production and use is also high corrosion resistance PT-FE and PFA, it is suitable for application in alkali or acid environment, but relatively poor regulation.