1"-600LB-SW Close Die Forged Lifting Check Valve
1"-600LB-SW Close Die Forged Lifting Check Valve - Image 2
1"-600LB-SW Close Die Forged Lifting Check Valve - Image 3
1"-600LB-SW Close Die Forged Lifting Check Valve - Image 4

1″-600LB-SW Close Die Forged Lifting Check Valve

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Description

Technical Datasheet

Product Name: Forged Steel Lifting Check Valve
Model: 1″-600LB SW Lifting Check Valve

1. General Information

Item Specification
Valve Type Lifting Check Valve (Piston / Disc Type)
Nominal Size 1 inch (DN25)
Pressure Rating Class 600
Connection Type Socket Weld (SW) Ends
Body / Bonnet Material ASTM A105 (Carbon Steel) or ASTM A182 F316 (Stainless Steel)
Operation Automatic (Flow-dependent)

2. Technical Specifications

Item Specification
Pressure Rating Class 600 (PN100)
Shell Test Pressure Approx. 1500 psi (10.3 MPa)
Seal Test Pressure Approx. 1100 psi (7.6 MPa)
Design Temperature -29°C to +425°C (Carbon Steel) / -196°C to +425°C (Stainless Steel)
Applicable Media Water, Oil, Gas, Steam, Non-corrosive / Corrosive Fluids (depending on material)
Cracking Pressure Low (typically 0.1–0.5 psi / 0.007–0.035 bar)

3. Main Material of Parts

Part Name Material Material Grade (Reference)
Body Forged Carbon Steel / SS ASTM A105 / A182 F316
Bonnet / Cover Forged Carbon Steel / SS ASTM A105 / A182 F316
Disc / Piston Stainless Steel 13Cr (AISI 410) / F304 / F316
Seat Ring Stainless Steel 13Cr / F304 / F316 (Integral or welded)
Spring (if applicable) Stainless Steel AISI 302 / 316
Gasket Spiral Wound / Graphite 304SS + Graphite / PTFE
Bonnet Bolts Alloy Steel / SS ASTM A193 B7 / A193 B8

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) Center to Top Height (H) approx.
1″ (DN25) 33.5 10 API 602 Standard: 216 mm 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 (Compact Forged Valves) / ASME B16.34

  • Face-to-Face Dimensions: ASME B16.10 or API 602

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

  • Pressure-Temperature Rating: ASME B16.34

  • Inspection & Testing: API 598

6. Product Features

  1. Lifting (Piston) Type Design: The disc lifts vertically within the body, providing a guided, stable operation that minimizes wear and ensures positive sealing.

  2. Forged Construction: ASTM A105 or F316 forged body provides superior strength and reliability for Class 600 high-pressure applications.

  3. Socket Weld Ends: Provides a permanent, leak-free connection suitable for high-integrity piping systems.

  4. Compact Design: Short face-to-face dimensions (per API 602) make it ideal for tight piping layouts.

  5. Automatic Operation: Prevents reverse flow without external actuation; disc closes automatically when flow reverses.

  6. Horizontal Installation: Lifting check valves are typically installed in horizontal pipelines with the bonnet vertical (upward) for proper operation.

Remarks:

  • Material Options: Available in A105 Carbon Steel (for non-corrosive services like water, oil, steam) or F316 Stainless Steel (for corrosive services). Specify material grade when ordering.

  • Installation: Ensure the valve is installed with the flow direction arrow oriented correctly and the bonnet facing upward (vertical) for reliable disc operation.

  • Spring-Assisted Option: For vertical or low-flow applications, a spring-assisted disc can be provided to ensure prompt closing.

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

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