Cast Lift Check Valve

1. Design and manufacture stadnard: BS1868
2. Face to face: ASME B16.10
3. Flange ends standard: ASME B16.5
4. Inspection and test standard: API598

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Description

BB, lift type, renewable seat rings, horizontal service, flanged or BW ends.

Standards compliance

• Design and Manufacture: Cast steel check valve to BS 1868,

• ASME B16.34 and API 6D;

• Forged steel check valve to API 602.

• Inspection and Test: API 598 or API 6D.

• End flange dimension: ASME B16.5(for NPS<24);

• ASME B16.47 series B. API 605 or ASME B16.47 series A. MSS SP -44(for NPS > 24).

• BW end dimension: ASME B16.25.

• Socket-weld dimension: ASME B16.11.

• Face to face and end to end: ASME B16.10.

• Pressure-temperature ratings: ASME B16.34.

• Wall thickness dimension: API 600 and BS 1868.

The features of check valve

• Bolted Bonnet; Swing and lift disc; Metallic seating surfaces.

Flanged ends piston-lift type, check valve, products design features

. Flanged ends piston -lift type check valve are used in pipes under nominal pressures between, Class 150 ~900 working temperatures between -46~550. They are used in industries include oil, chemistry, pharma-ceutical. fertilizer, and power generation to prevent the backward flux of the media. Main structural features:

. 1 Rational structure, reliable sealing, excellent performance, pretty appearance.

2.Co hard alloy welded sealing surface of the valve discs and seats, which is wearing, erosion proof, abrasion proof andlong-lived.

. 3. Different parts materials and different sizes for flange & gasket-welding are available for sensible combination according to different working facts and customer’s requirements.

Cast Lift Check Valve FAQs

1. What is a cast lift check valve used for?

A cast lift check valve is a non‑return valve that prevents backflow by using a guided disc or piston that lifts from the seat under forward flow. It is commonly used in water, steam, oil, gas, and general industrial pipelines where bubble‑tight shut‑off and reliable automatic operation are required.

2. What are the main advantages of a cast lift check valve?

Its main advantages include straight‑through linear flow, low pressure drop, compact structure, good sealing performance, and suitability for high‑velocity and medium‑to‑high‑pressure service. The design is especially preferred where precise backflow control and protection of pumps and compressors are important.

3. What is the difference between a cast iron spring lift check valve and a standard gravity‑type lift check valve?

A cast iron spring lift check valve uses a spring to assist rapid closure, reducing water hammer and improving response time under reversing flow. A standard gravity‑type lift check valve relies mainly on disc weight and back pressure, making it simpler but less favorable in high‑slam‑risk systems.

4. What materials are available for cast lift check valves?

Common body materials include cast iron, ductile iron, and cast steel. Discs and seats are often made of stainless steel, Co‑based hard alloy, or other wear‑resistant materials depending on temperature, pressure, and corrosion requirements.

5. What pressure ratings and sizes are typical for cast lift check valves?

Typical pressure ratings cover PN10–PN40 (or Class 150–300), with size ranges from DN15–DN300 (1/2″–12″) for many cast iron and cast steel designs. Some manufacturers offer larger sizes for special industrial and pipeline projects.

6. Do you have experience in the Middle East market?

Yes, we have a strong presence in Saudi Arabia, Oman, UAE, and other Middle Eastern countries.

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