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FAQ

What is the difference between gate valve Z41T and Z45T?
Z41T is a dark pole gate valve, and Z45T is a plain rod gate valve,
Generally, how big is the diameter of the installation flange plate gate valve?
Under normal circumstances:Flanged gate valves for piping over DN50,DN50 (below) can be made of wire or gate valves, or flanged gate valves (flanged valves or welded gate valves)
Yes, soft sealing gate valve can reach 25 kilograms, Fujian light valve company has this type of soft sealing gate valveAnonymous browsing | 28 times
Soft seal butterfly valve seal is good, but can only withstand up to 16 pressure, or the plastic can not stand. A short period of time is OK, and it's also related to the workmanship and quality of the factory. The quality is poor.
Is the gate valve clockwise or closed?
In general, the valve is clockwise to turn off. Some of the clockwise rotation of the valve on the move is open
What is the difference between the cut-off valve and gate valve, the general will use the cut-off valve instead of gate valve
Yes. Globe valves and gate valves are indeed common in certain piping and operating conditions.
Will the water supply and drainage to wear civil air defense gate valve, the use of bright rod or dark rod?
3, soft sealing rubber lining valve plate size uniform, interchangeable. Therefore, the soft sealing gate valve will be the direction of development, but also the water supply industry is willing to adopt a valve.
What else, P54140V, 170V? What do they mean?
P work pressureP54 temperature at 540 degrees of work pressureThe pressure at P54 100 is 540 at the temperature of 100barV valve for chromium molybdenum vanadium steelP54 pressure 140V temperature at 540 DEG C for 140bar valve for chromium molybdenum vanadium steelP54 pressure 170V temperature at 540 DEG C for 170bar valve for chromium molybdenum vanadium steelFrom the JB/T4018 "valve type model preparation method"The standard unit is MPa, but it is usually used in bar
Is the axial force and torque of the wedge gate valve the same?
B higher temperature. C nice wedge single gate valve is suitable for high temperature medium easy to coking. Flexible gate valve features: high temperature, a wedge type single gate valve in a special form. Comparison with wedge gate valve.