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Wenzhou Goldtop Valve Co.LTD
Wenzhou Goldtop Valve Co.LTD

Gold top valve  located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,Gate globe check valve ,butterfly valve ,etc.Surely we can design them by customer's special requirements.

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Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve

Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve

  • Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve
  • Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve
Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve
Product Details:
Place of Origin: 中国
Brand Name: GOLD TOP
Certification: API 6D
Payment & Shipping Terms:
Minimum Order Quantity: 1pcs
Price: Negotiation
Packaging Details: Plywood Case
Delivery Time: 30days
Supply Ability: 100+pcs+30days
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Detailed Product Description
Material: Carbon / Stainless / Alloy / Duplex Steel Size: 2"~36"
End Connection: FF / RF/ RTJ / BW Pressure: 150# ~1500 #
Testing Standard: API598 Application: Water , Oil, Gas, Etc.,
High Light:

metal seated check valve

,

high pressure check valve

 
Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve
 
Piston Lift Check Valve
 
Introduction
  • A piston check valves are similar to lift check valves. the only difference is that piston check valves has a dashpot consisting of piston and cylinder that provides cushioning effect during operations.
  • The dashpot produces a damping effect during operation, thereby eliminating the damage caused by the frequent operation of the valve.
  • The flow of fluid through piston check valve is similar as lift check valve.
  • The construction of seat and disc for the piston check valve also same with the construction of lift check valve where the arrangement of seating is similar to a globe valve.
  • Piston check valves do not require an operation. The closing of the disc depends on the back flow and gravity whereas; the opening of the disc depends on the upward flow.
  • Piston check valve can be found in 1” to 12” size range with 150# to 900# class range.
Operation
  • Flow to piston check valves must always enter below the seat.
  • As the flow enters, the disc is raised within guides from the seat by the pressure of the upward flow.
  • When the flow stops or reverses, the disc is forced onto the seat of the valve by both the backflow and gravity.
Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve 0
 
 
Application
  • Piston check valves are used primarily in conjunction with globe and angle valves in piping systems experiencing very frequent changes in flow direction.
  • Piston Check Valves are particularly suitable for high-pressure service where velocity of flow is high.
Metal Seated Piston Lift Check Valve Cast Steel Stellite Double Flanged Non Return Valve 1
 
One Type 
Cass 900~2500 Pressure Seal Piston Check Valve
 
ressure-seal Piston Check Valve 90Lb~2500Lb
 
Standard Material Specifications
NO.
Part Name
CS to ASTM
AS to ASTM
SS to ASTM
Type A105
Type F22
Type F304(L)
Type F316(L)
1
Body
A105
A182 F22
A182 F304(L)
A182 F316(L)
2
Life Disc
A276 420
A276 304
A276 304(L)
A276 316(L)
3
Sealing Seat
A105
F22
A182 F304(L)
F316(L)
4
Pressure Ring
08F
08F
A276 304L
A276 316L
5
Retaining Nut
A194 2H
A194 4
A194 8
A194 8M
6
P.S.Lock Nut
A194 2H
A194 4
A194 8
A194 8M
Suitable Medium
W.O.G.etc
W.O.G.etc
HNO3,CH3OOH etc
Suitable Temperature
-29 425
-29 550
-29 180
Note: Other materials are available upon request.
 
Dimensions (mm) and Weights (Kg)
NPS
1/2~
3/4~
1~
1-1/4~
1-1/2~
2~
L
900~1500Lb
140
140
140
178
178
216
250Lb
186
186
186
232
232
279
H
117
117
117
152
152
195
Weights
900~1500Lb
7.5
7.0
6.8
18.5
18.1
20.3
2500Lb
9.0
7.6
8.4
19.5
20.1
21.8
 
 
 
 
 
 
 

Contact Details
Wenzhou Goldtop Valve Co.LTD

Contact Person: sales

Tel: +8613758447235

Send your inquiry directly to us
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Wenzhou Goldtop Valve Co.LTD
Tel:86-577-86621729
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