Description features:Price Terms:
FOB Shanghai USD 10~10000
Terms of Payment:
L/C,T/T
Supply Ability:
100 Piece/Pieces per Month
Minimum Order:
10 Piece/Pieces
Packaging:
Standard Packing
Delivery Lead Time:
30 day






Flex Wedge Gate Valve







application:
Cooling Water, Condensate, Condensate Cooling Water, Condenser Cooling, Core Spray, Containment Spray, High Pressure Safety Injection, High Pressure Water Injection, Low Pressure Safety Injection, Nuclear Charge, OEM, Power Generation, Safety Injection, Safety Systems







industry:
Boiling Water Reactors Non-safety, Boiling Water Reactors Safety, Condensate Systems, Cooling Systems, OEM, Pressurized Water Reactors - Non-safety, Pressurized Water Reactors - Safety, Steam Systems







standard:
ASME (ANSI), ISO, Nuclear










The Flex-Wedge Gate Valve is generally supplied in sizes from 21/2 to 54 inches in diameter and pressure ratings ranging from 150 to 4500 pounds.



Base material can be:


carbon steel

stainless steel

or a wide range of special alloys



Various combinations of seating and stem materials are available to meet specific customer requirements.



Valves with pressure ratings less than 600 pounds are bolted bonnet type valves. Pressure ratings of 600 pounds or higher may have either bolted or pressure seal bonnet type closures.



In order to meet specific customer requirements and provide maximum flexibility, Flowserve can supply either a pressure seal or a bolted bonnet type closure on Flex-Wedge Gate Valves with pressure Class 600 or higher.



The pressure seal design incorporates a metal-to-metal seal that becomes tighter as the pressure increases. The initial preload deforms the taper on the soft iron gasket to mate with the taper on the bonnet. The thin knife-edge on the gasket is wedged tightly between the body and the bonnet.



The shallow angle insures that the gasket is sealed tightly with only a small upward force on the bonnet. Once the initial seal is created, the body/bonnet joint will remain leak free regardless of thermal or pressure conditions in the valve.



After the joint has been assembled, there is no further need to adjust bonnet cap screws. For customers requiring a back-up sealing system, Anchor/Darling?s pressure seal design can be furnished with a seal weld provision.



Bolted bonnet joints are designed using the latest analytical techniques. This method insures a flange design of sufficient strength to prevent leak-producing deformation. All joints can be designed to use any one of the available gasket materials:


metallic asbestos

ring joint

o-ring, etc.



For customers requiring a back-up sealing system, the bolted bonnet design can be furnished with a seal weld provision.



Features




Bolted or Pressure Seal Type Bonnet

Uniformly Flexible Around Entire Circumference of Wedge

Broad Range of Sizes and Pressure Classes

Flanged or Butt Weld Ends

Variety of Actuators and Accessories

Variety of Actuators and Accessories



Flex Wedge Gate Valve









application:
Cooling Water, Condensate, Condensate Cooling Water, Condenser Cooling, Core Spray, Containment Spray, High Pressure Safety Injection, High Pressure Water Injection, Low Pressure Safety Injection, Nuclear Charge, OEM, Power Generation, Safety Injection, Safety Systems







industry:
Boiling Water Reactors Non-safety, Boiling Water Reactors Safety, Condensate Systems, Cooling Systems, OEM, Pressurized Water Reactors - Non-safety, Pressurized Water Reactors - Safety, Steam Systems







standard:
ASME (ANSI), ISO, Nuclear