Audited Supplier
| Main Parts Materials | ||||
| NO | Part Name | ASTM Material | ||
| Carbon Steel | Stainless Steel | Alloy Steel | ||
| 1 | Body | A105 | A182 F316 | A182 F11 |
| 2 | Bonnet | A105 | A182 F316 | A182 F11 |
| 3 | Disc | A182 F6a | A182 F316 | A182 F6a+HF |
| 4 | Hinge | A276 410 | A276 316 | A276 410 |
| 5 | Seat | A276 410 | A182 F316+HF | A276 410+HF |
| 6 | Bonnet Gasket | Graphite+304 | Graphite+316 | Graphite+304 |
| 7 | Bonnet Stud | A193 B7 | A193 B8M | A193 B16 |
Note:lift type check valve seat ring integral with body.
Forged Steel piston Check Valve Specification:
1. Size:3/8"~3",DN 10~DN 80
2. Pressure:Class 150~Class 2500
3. End connection:RF,RTJ,BW,SW,NPT
Main Materials
Forged Steel:A105,F11,F22,LF2,F304,F304L,F316,F316L,F321,Alloy 20,N06625,F5,F9,F51,F53,F55
Special Alloy Steel:Inconel,Hastelloy,Monel,Incoloy 825
Forged Steel piston Check Valve Standard And Features
Std:
1.Design & manufacture:API 602,ASME B16.34
2.Pressure-temperature Rating:ASME B16.34
3.FACE TO FACE:ASME B16.10/Manufacturer STD
4.Flanged End:ASME B16.5
5.Butt Welded End:ASME B16.25
6.Socket Welded End:ASME B16.11
7.Threaded End:ASME B1.20.1
8.Inspection & Test:API 598
Features:
1.BC,Bolted Cover
2.Welded Cover,Bolted Cover or pressure seal Cover
3.Lift or Swing Type
4.Seat Ring Integral with Body of Lift
5.Horizontal or Vertical Service
6.SW,Screwed Welded End
7.NPT,Threaded End
8.Flanged End
9.When the swing check valve is fully opened, the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small
10.The disc seat of the lift check valve is located on the sealing surface of the valve seat on the valve body
11.The function of this type of valve is to allow the medium to flow in only one direction and to prevent the flow in one direction
Welded Flange Swing Check Valve Specification:
1. Size:3/8"~3",DN 10~DN 80
2. Pressure:Class 150~Class 2500
3. End connection:Welded
Main Materials
Forged Steel:A105,F11,F22,LF2,F304,F304L,F316,F316L,F321,Alloy 20,N06625,F5,F9,F51,F53,F55
Special Alloy Steel:Inconel,Hastelloy,Monel,Incoloy 825
Welded Flange Swing Check Valve Standard And Features
Std:
1.Design & manufacture:API 602,ASME B16.34,BS 5352,API 594
2.Pressure-temperature Rating:ASME B16.34
3.FACE TO FACE:ASME B16.10/Manufacturer STD
4.Flanged End:ASME B16.5
5.Inspection & Test:API 598
Features:
1.Bolted Cover or Pressure seal Cover
2.Full bore or reduced bore
3.Swing Type
4.Welded End
5.Low temperature design is selected
