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.