OEM A105 Gate Valve Suppliers – Forged Steel Check Valve – C. Z. IT Detail:
Check Valve
Used to prevent backflow, these valves are typically self-activated allowing the valve automatically opens when media passes through the valve in the intended direction and close should flow reverse.Including the Non-Return Swing Check Valve,Cast Iron Check Valve, Wafe Type Check Valve, Thread Ends Check valve,Double Plate Check Valve, and flange Check Valve, etc.
Design Features
- Bolted bonnet with spiral-wound gasket
- Lift or Piston Check
- Ball check
- Swing check
Specifications
- Basic Design: API 602, ANSI B16.34
- End to End: DHV Standard
- Test & Inspection: API 598
- Screwed Ends (NPT) to ANSI/ASME B1.20.1
- Socket weld Ends to ASME B16.11
- Butt weld Ends to ASME B16.25
- End Flange: ANSI B16.5
Optional Features
- Cast Steel, Alloy Steel, Stainless Steel
- Full Port or Regular Port
- Welded Bonnet or Pressure Seal Bonnet
- Manufacturing to NACE MR0175 upon request
Check Valve Material List
| Part | Standard | Low temperatureService | Stainless Steel | High TemperatureService | Sour Service |
| BODY | ASTM A216-WCB | ASTM A352-LCC | ASTM A351-CF8 | ASTM A217-WC9 | ASTM A216-WCB |
| COVER | ASTM A216-WCB | ASTM A352-LCC | ASTM A351-CF8 | ASTM A217-WC9 | ASTM A216-WCB |
| DISC | ASTM A217-CA15 | ASTM A352-LCC/316OVERLAY | ASTM A351-CF8 | ASTM A217-WC9/STLOVERLAY | ASTM A217-CA15-NC |
| HINGE | ASTMA216-WCB | ASTM A352-LCC | ASTM A351-CF8 | ASTM A217-WC9 | ASTM A216-WCB |
| SEAT RING | ASTM A105/STLOVERLAY | ASTM A182-F316/STLOVERLAY | ASTM A182-F316/STLOVERLAY | ASTM A182-F22/STLOVERLAY | ASTM A105/STLOVERLAY |
| HINGE PIN | ASTM A276-410 | ASTM A276-316 | ASTM A276-316 | ASTM A276-410 | ASTM A276-416-NC |
| PLUGFOR HINGE PIN | CARBON STEEL | ASTM A276-316 | ASTM A276-316 | STAINLESS STEEL | CARBON STEEL |
| WASHER | STAINLESS STEEL | ASTM A276-316 | ASTM A276-316 | STAINLESS STEEL | STAINLESS STEEL |
| DISC NUT | ASTM A 276-420 | ASTM A276-316 | ASTM A276-316 | ASTM A276-420 | STAINLESS STEEL |
| DISC WASHER | ASTM A 276-420 | ASTM A276-316 | ASTM A276-316 | ASTM A276-420 | STAINLESS STEEL |
| DISC SPLIT PIN | ASTM A 276-420 | ASTM A276-316 | ASTM A276-316 | ASTM A276-420 | STAINLESS STEEL |
| BONNETRING JOINT | SOFT STEEL | ASTM A276-316 | ASTM A276-316 | ASTM A276-304 | SOFT STEEL |
| BONNET STUD | ASTM A193-B7 | ASTM A320-L7M | ASTM A193 B8 | ASTM A193-B16 | ASTM A193-B7M |
| BONNET NUT | ASTM A194-2H | ASTM A194-7M | ASTM A194 8 | ASTM A194-4 | ASTM A194-2HM |
| RIVET | SOFT STEEL | CARBON STEEL | STAINLESS STEEL | CARBON STEEL | CARBON STEEL |
| NAME PLATE | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL |
| HOOK SCREW | CARBON STEEL | CARBON STEEL | STAINLESS STEEL | CARBON STEEL | CARBON STEEL |
Product detail pictures:
Related Product Guide:
What are duplex stainless steel applications?
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