Q:What are the common standards for gate valves?

Is the gate valve opening and closing parts, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle. The following common standards for Fujian Biaoguang valve for valve: design specification: JB/T 7746, API602 JB/T 7746, the length of the structure specification / thread socket factory test and inspection of JB/T1751/GB7306, ANSI: B16.11/B2.1: JB/T 9092, API598 pressure temperature: GB/T 9131, ANSI B16.34, MSS GB/T 12220 product ID: SP25 delivery specification: JB/T 7928

Q:What is the difference between Z41X gate valve and Z45X gate valve?

All flange soft sealing gate valve, but 41X is Ming bar, 45X is dark pole

Q:How big valves and fittings need flange installation, such as gate valves, DN50, DN80 and the like?.

Flanges for piping above DN50,DN50 (below) can be made of wire or flange (flange for pressure piping)

Q:Why does the centrifugal pump start and stop in the case of closing the gate valve?

After the valve is closed to stop the cause of centrifugal pump outlet valve is closed to stop the pump to prevent the flow back into the pump, impeller, impeller in reverse, part of the mechanical seal in the pump pump impeller reversal will have adverse consequences, serious damage to the centrifugal pump, to close the valve after the shutdown.

Q:greater than DN50 of the pipeline butterfly valve?

Have not heard of this requirement, before the ball valve and butterfly valve quality is rarely used now are good, can be used, but not easy to control the flow valve butterfly valve can close more time-saving, fluid resistance of small. HVAC branch pipe, to flow control, so the choice of gate valve and cut-off valve is more reasonable, and now choose a ball valve is also a lot.

Q:What is the difference between the copper gate valve and the ordinary material gate valve?!

The copper gate valve is made of copper alloy, and the common materials are made of stainless steel, cast steel, cast iron, and so on. Now there are new types of ceramic gate valves. Different properties of the gate valve performance, processing technology, service life, applicable occasions are a certain difference. Copper gate valves should be used for fire end water outlet installations as well as other occasions with special requirements.

Q:What is the gate valve for the DN65 hydrant?

Fire hydrant with 65 butterfly valve, ah, how do you use the gate valve?

Q:Gate valve z11h/y-16 what does that mean?

Product Name: internal thread gate valveItem number: Z11HProduct specification: DN15-50Product pressure: 1.6MPa-2.5MPaMaterial: cast iron, cast steel, stainless steelInternal thread gate valve nominal pressure 2.5Mpa, applicable temperature range -20-232-350, applicable medium: water, oil, gas and certain corrosive liquid (W.O.G), thread type G.NPT.BSPT.BSP.DIN259/2999.

Q:What is the difference between a flanged gate valve and a wire gate valve?

Threaded valve is via the wire or wire is connected with the pipeline, a small general air for the air valve, all belong to this

Q:Is the gate valve flanged?

The most commonly used gate valves are threaded connections, flanged connections, and welded connections.Like the outer thread connection, the clamp connection, the card sleeve is seldom used.