Q:What is the difference between the cut-off valve and the gate valve?

When opening and closing, the valve core and valve seat sealing surface always contact and rub each other, so the sealing surface is easy to wear, the valve is close to shut down, the pressure difference between the pipe is very large, so that the sealing surface wear more serious.Gate valve and stop valve advantages and disadvantages:Valve is the advantages of small flow resistance, the media can flow in two directions, but there are tall, complex structure, sealing surface easy to wear shortcomings. The flow resistance of the gate valve is 3-5 times that of the gate valve. Open and close to shut down in order to seal the valve, the valve is completely closed when in contact with the sealing surface, the sealing surface wear is very small, because the flow of the main actuator with large valve should pay attention to adjust the torque control mechanism.

Q:Gate valve Z41H-16Q generally used for what place?

Commonly used in petroleum, chemical systems, especially in long-distance pipelines of petroleum and natural gas.

Q:What does the gate valve 150# mean? Is it stress PN? What's that, PN16 or?It's better to have some specific links, thanks!

I think PSI is equal to 150#The sign behind is "PSI"You Baidu "ANSI standard pressure, pound scale and nominal pressure relations table" will knowI'm new, too, I understand

Q:What's the meaning of the gate valve model z41x 16Q?

Gate valve (Z) flange connection (4) wedge type single gate (1) rubber soft seal (X) -16 pressure) (Q)

Q:What do you mean by gate valve type RVHX-0150-10 and Z45X-16Q?

Z45x-16q, Z means gate valve, 4 means flange connection, 5 refers to dark rod gate valve, X means rubber seal, 16 refers to nominal pressure 1.6MpaRVHX means manual gate valve, 150 refers to the caliber of DN150, and 10 indicates nominal pressure of 1.0MPa

Q:What is the soft seal gate valve?

Commonly used soft sealing gate valve model is divided into: Z45X and Z41X, the difference is that the Z41X is the Ming bar, and Z45X is dark rod.Matters needing attention in packing and transportation of soft sealing gate valve:Soft sealing gate valve before transport, should use the rope to tie up the small caliber.Before transportation, the lighter sides of the valve should be sealed.For larger caliber soft sealing gate valve, it should be used to carry out simple packing, it can better prevent the valve in the process of transportation damage.

Q:What are the meaning of the cast rigid gate valves z41h-16c?

According to the provisions of the JB/T 308-2004 valve type programming method:Z== gate valve4== flange connection1== rigid single gateH== sealing surface material: Cr13 stainless steel16== pressure rating: 1.6MPaC== body material: carbon steel

Q:What kind of copper gate valve copper content standards, there are no national standards?

Please refer to: GB/T12225-2005 "general purpose valve, copper alloy casting technical specification" and GB/T 15116-1994 "die casting copper alloy"

Q:What does gate valve Z44T-10-200 code mean?

The meaning of the model is standard, the landlord himself to check the JB/T308 standard, Baidu library some, and is free to download:JB/T 308-2004 valve type method of preparation clear EditionHttp://wenku.baidu /view/5f798850ad02de80d4d84036.htmlZ = gate valve4 = connection: flange4 = structure form: double gateT = sealing surface material: Copper10 = nominal pressure: 1.0MPa, followed by no letters indicate body material: Cast Iron200 = nominal path: DN200

Q:What does "Z45W-10T" mean?What does each letter stand for?

For type PN10 Z45W Brass Gate ValvesZ is the valve type code, which represents the gate valve;Driving mode is hand wheel (code name omitted);4 is the connection form code, which represents the flange;5 is the gate valve structure form code, represents for the dark pole wedge rigid single gate;