Forged Steel T Type Piston Lift Check Valve – A105, 1½”, 800LB, Socket Weld Ends, API 602 Compliant

Technical Specifications:

  1. Designed and manufactured in accordance with API 602.
  2. End connections per the following standards:
    a) Socket weld dimensions: ANSI B16.11.
    b) NPT Threaded dimensions: ANSI B1.20.1. / BSP.
  3. Face-to-face dimensions in accordance with ASME B16.10-2023.
  4. Testing and inspection performed per API 598.
  5. Structural features: Bolted Bonnet (B.B.), Welded Bonnet (W.B.), Pressure Seal Bonnet (PSB), Outside Screw and Yoke (OS&Y).
  6. Materials conform to ANSI/ASTM standards.
  7. Primary materials include: A105(N), LF2, F304(L), F316(L), F51, F91, F11, F22, F321, etc.

Product Summary

The forged steel T type piston lift check valve is built for high-pressure applications in oil, gas, and power industries. Made from A105 forged carbon steel, it delivers exceptional strength and durability at temperatures up to 560°C. Its straight-through T-type design minimizes flow resistance, while the piston lift mechanism ensures rapid closure to prevent water hammer and backflow. Rated at 800LB with 1½” socket weld ends, this valve complies with API 602 standards and is 100% tested per API 598. Ideal for protecting compressors, pumps, and critical process lines. Trust SFANVALVE for precision-engineered forged steel piston lift check valves that perform reliably under pressure.

BrandSFAN VALVE OR "OEM"
Flow boreStandard bore or Full bore
MaterialCarbon steel, Stainless steel, Alloy steel or other
DimensionDN10(1/4") to DN100(4")
Class150~2500
MediumWater, oil &gas.
Temperature-196℃(cryogenic design) to 560℃
Valve test100% quantity tested before delivery
Valve guarantee18 months after shipments and 12 months after installed
PackingPlywood or carton cases
Delivery time7 days to 30 days
Place of OriginZhejiang, China

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Catalog details:

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Your questions answered

Common questions

How can you trust SFANVALVE ?

For Sfanvalve’s standard products, we are willing to start production without any  payment in advance. We accept product inspection upon completion, and payment is only due once the inspection is passed. SFAN will then arrange shipment to your designated warehouse as per your requirements.

Yes. After receiving the contract, we will provide technical drawings. Production will commence based on these drawings once they are confirmed by both parties.

After receiving the contract and confirming the drawings, we will provide a production schedule and manufacture strictly according to it. We will provide photos or videos to share and make a record for every stage of the production process. If a serious delay occurs due to management error, we will arrange air shipment and bear all costs by air.”

The warranty period is 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.