What are the major brands of valves abroad?

3 answer

Which valve can play a good regulatory role?

3 answer

What does "DN15" mean? What does "PN 16" mean?

3 answer

How big valves are used in the DN90 pipeline?

3 answer

The valve has a clear opening and closing sign. What does this sentence mean?

4 answer

What do O and S mean on the valve?

3 answer

Is there a one-piece, two linkage valve?

3 answer

How to check if the gas valve is open?

4 answer

What should be checked before using the valve?

3 answer

What are the types of valves?

3 answer

Which direction is the valve? Which direction is it?

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How to open the gas valve?

3 answer

Signal butterfly valve installation or other valve installation

3 answer

What valve does the high pressure by-pass valve DN254 * 800 belong to?

3 answer

What does the ZH41 valve ZH41 mean, and what other specifications?

3 answer

Automatic exhaust valve installed in the pipe before and after the installation of other valves need to press it?

3 answer

What is valve packing used for?

3 answer

How many kinds of valves are there in the water pipes?

3 answer

What items and detailed procedures should be inspected for valve size inspection?

3 answer

What are the technical requirements of valves, such as "Z15W-25T"?

3 answer

What does the valve QF mean?

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What do letters represent in the QF-2 and PX-32 valve models?

3 answer

How do you understand the valve Z41X-16?

3 answer

Representation of several types of valves

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What valve is the VENT?

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What do you mean by the 16 bit coding of the valve type?

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What is a heavy body valve?

3 answer

Valve pressure grade division

3 answer

What is the flow medium of the valve?

3 answer

What valve is the YQZ45X-16Q?

3 answer