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2026-06-10Which is better, welded ball valve or flanged ball valve
Technical characteristics of welded ball valves: 1. The valve body structure is welded as a whole, and there will be no external leakage. 2. The valve seat is composed of PTFE sealing rings and springs...
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2026-06-10When is it necessary to use sleeves for welding ball valves
Under what circumstances does welding ball valves normally require the use of sleeves? Sleeve sleeves can be used in urban gas, gas output pipelines, main and branch supply pipelines. Welded ball valve...
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2026-04-27Working principle of pneumatic butterfly valve double acting and single acting butterfly valves
Installation requirements for pneumatic butterfly valves: 1. Before installation, check that all parts of the butterfly valve are intact, the model is correct, there are no impurities in the valve body...
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2026-04-27The difference between electric regulating valve and electric butterfly valve
Working principle of electric butterfly valve: The working power supply usually includes AC220V, AC380V, etc. Input signal: 4~20mA 0~10V weak current signal. After the adjustment type electric actuator...
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2026-03-27Working principle of liquid solenoid valve
Hydraulic solenoid valve, also known as water solenoid valve, works on the following principle: the solenoid valve has a sealed chamber with through holes at different positions, each hole leading to a...
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2026-03-27What are the components of an internal thread needle valve
Internal thread needle valve is an advanced connection valve in power plants, refineries, chemical plants, and instrument measurement pipelines. Needle valves have good sealing performance and long ser...
