Gp240gh Rising Stem Gate Valve DN100 System 1

Gp240gh Rising Stem Gate Valve DN100

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Specification:

Size: DN15-DN1200

Model:Z40H
Pressure: PN16-PN250
Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M.Etc

Type: Rising Stem and Wedge Single Disc, Solid or Flexible wedge, flat gate.

Operation: Handwheel, gear worm ,Electric operated

Standard:
Design & Manufacture Std.: GB/T12234,DIN3352,GOST 12820-80,Etc.

Face to Face Std.: GB/T12221,DIN3202,Etc.

End Connection Std.: JB/T79,DIN2543-2550,GOST 12820-80,Etc.

Test Standard: ISO5208, API 600, BS 6755

Full Port Design, OS&Y, Outside and Screw, Bolted bonnet, Back Seal Structure
Flexible wedge, Fully guided, Choice of Solid or Split wedge
Renewable or welded seat
Extended stem design for low temperature
Flanged or Butt-welding ends

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: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:Why can't the pressure measuring point be set at the two ends of the gate valve when measuring the resistance loss of the gate valve?: In the standard JB/T5296-1991 "universal valve flow coefficient and the flow resistance coefficient test method",

Q:Gate valve z45h-10dn250 length of the body?: Z45h-10dn250 body length L=330mm, this valve is hidden bar, elastic seat, sealing gate valve, gate lining, lining fluorine, belong to soft seal

Q:What do you mean by "2" and "200 CF8M"?: CF8M is stainless steel, and 2 is caliber 50200 and should also be bore

Q:What is the Z15T-16C letter of the gate valve?: The Z class code indicates the type of gate valve, gate valve is the first letter of the alphabet. The gate is manual driving mode, 1 said the connection form of gate valve for connecting thread, 5 represents the structure form of gate valve for rigid single gate, T gate said lining material of copper alloy, 16 PN1.6MPa nominal pressure valve. C said the valve body material is carbon steel.

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:What valve is z45w gate valve?: Cast iron gate valve with turbine head, please contact me

Q:What is the standard for ductile iron gate valve set?: Clear shot valve installation, is still under way of connection and specifications set "water supply and drainage, heating, gas engineering" or "industrial engineering" pipeline register quota corresponding specifications and installation methods of connecting the valve installed valve section.

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.

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