2"-300LB SS Bellow Seal SW End Gate Valve
2"-300LB SS Bellow Seal SW End Gate Valve - Image 2
2"-300LB SS Bellow Seal SW End Gate Valve - Image 3
2"-300LB SS Bellow Seal SW End Gate Valve - Image 4

2″-300LB SS Bellow Seal SW End Gate Valve

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Description

Technical Datasheet

Product Name: Forged Stainless Steel F316L Bellow Seal Gate Valve
Model: 2″-300LB Bellow Seal SW End Gate Valve (Body Material: F316L)

1. General Information

Item Specification
Valve Type Gate Valve (Rising Stem / OS&Y)
Nominal Size 2 inches (DN50)
Pressure Rating Class 300
Connection Type Socket Weld (SW) Ends
Special Design Bellow Seal (Bellows Sealed)
Body / Bonnet Material ASTM A182 F316L (Forged Stainless Steel, Low Carbon)
Operation Handwheel (Manual) / Gearbox optional

2. Technical Specifications

Item Specification
Pressure Rating Class 300 (PN50)
Shell Test Pressure 7.5 MPa (approx. 1110 psi)
Seal Test Pressure 5.5 MPa (approx. 800 psi)
Design Temperature -29°C to +425°C (Depends on trim/seat material)
Applicable Media Water, Oil, Gas, Steam, Corrosive Fluids (Excellent resistance to chlorides and intergranular corrosion due to F316L)

3. Main Material of Parts

Part Name Material Material Grade (Reference)
Body Forged Stainless Steel ASTM A182 F316L
Bonnet Forged Stainless Steel ASTM A182 F316L
Wedge / Disc Stainless Steel ASTM A182 F316L (with Hard-facing optional)
Stem Stainless Steel ASTM A182 F316L (or A276 316L)
Bellows Assembly Stainless Steel ASTM A240 316L (Multi-ply)
Seat Ring (Sealing) Stainless Steel / Hard-facing F316L / Stellite (Optional)
Gland Packing Flexible Graphite / PTFE –
Handwheel Cast Iron / Ductile Iron –

4. Main Dimensions & Connection Data (Unit: mm)

Note: Socket Weld ends conform to ASME B16.11.

Size (NPS) Socket Bore Dia (B) Socket Depth (L2) Face to Face (End to End) (L) Top to Bottom Height (H) approx. Handwheel Dia (W) approx. Stem Dia
2″ (DN50) 62.5 10 Manufacturer Standard (per API 602) Varies by design Varies by design Varies by design

Note: Dimensions above are typical. Final dimensions should be based on approved manufacturer drawings.

5. Applicable Design Standards

  • Design & Manufacture: API 602 (Forged Valves) / ASME B16.34

  • Face-to-Face Dimensions: ASME B16.10 (or per user request)

  • End Connections: ASME B16.11 (Socket Weld)

  • Pressure-Temperature Rating: ASME B16.34

  • Inspection & Testing: API 598

6. Product Features

  1. Zero Leakage: The multi-layer stainless steel bellows (316L) ensures zero stem leakage, critical for fugitive emission control.

  2. Superior Corrosion Resistance: F316L material provides enhanced resistance to pitting and intergranular corrosion, especially in chloride environments.

  3. Double Seal Safety: Backup graphite packing provides secondary protection in case of bellows failure.

  4. Long Service Life: Elimination of stem seal friction reduces wear.

  5. Visual Indication: Rising stem design provides clear visual position indication.

Remarks:

  • This datasheet specifies ASTM A182 F316L for forged components.

  • For specific dimensional data and torque values, please refer to the official certified drawings from the manufacturer.

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