FAQ
Representation of several types of valves
Valve type:Z gate valveJ stop valveL throttling valveQ ball valveD butterfly valveH check ...
1/2, what does 1/4 valve mean? I don't understand. What does this number mean?
I have to answer a simple 1/2 1/4 is American Standard valve diameter to the national stan...
Which brand of electric valve is good?
SIEMENS (Siemens, Germany); the main HVAC control valve; Johnson (Johnson, America); elect...
What does the torque of the valve mean?
The opening moment (torque) is the force or torque that must be applied when the valve is ...
What do letters represent in the QF-2 and PX-32 valve models?
You check it on the national standard! One is accurate!...
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Wafer Butterfly Valve Manufacturers

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