This connection is applicable to various pressure and temperature, when used under harsh conditions, is more reliable than the flange connection. Valve removal and re-installation of welded connections are more difficult, so its use is limited to the typically long-term and reliable operation, or use of harsh conditions, the higher the temperature of the occasion. Such as coal-fired power stations, nuclear engineering. Ethylene pipeline works.
The nominal diameter of 50mm or less welding valve is usually to take over the plane end of the pipe welding socket. Stroke gap between socket and pipe socket weld, and thus it is possible to crevice corrosion by certain media, colleagues pipe vibration causes the joints fatigue. Therefore, the use of socket weld subject to certain restrictions.mini solenoid valve
Nominal diameter greater use of harsh conditions, high temperature applications, the valve body is often used groove welded connections at the same time, there are strict requirements on the weld.shut off solenoid valve
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