Cast Steel Check Valve

Check valves are generally used to protect pumps or similar equipment, allowing the flow only in one direction and preventing flow reversal due to back pressure.The swing type check valves are designed to produce a low pressure drop in the pipeline. This design provides a tighht seal as well as a fast reaction to the closure.Design Features

• Swing check valves option in accordance with API-603 only for stainless steel & Nickel alloys.

• Swing check valves for cryogenic service in accordance with BS-6364.

• Flange dimensions in accordance with ASME B16.5 for valves up to 24” nominal diameter.

• Damper & Counter weight options.

• Drain connections as per Customer request.

• Low fugitive emissions control.

• NACE service either MR-01-75 or MR-01-03.

CARBON STEEL; ALLOY STEEL; STAINLESS STEEL & EXOTIC ALLOY VALVES

This is the primary SINWA product line, manufactured in accordance with ANSI classes 150, 300, 600, 900, 1500 & 2500 # and sizes from 2” up to 72” nominal diameter, provides the end user a wide variety of valves to satisfy their needs. SINWA always keeps these valves in stock in the most common trims used in the industries. This product line is manufactured as per API-600 design requirements for gate valves; ASME B16.34 for globe valves and ASME B16.34 & API-6D for swing check valves.

One of the most important features of SINWA Cast Steel Valves is its guarantee to meet and exceed 50 ppm maximum low fugitive emissions leakage rate as furnished “off the shell” without a Customer’s special order requirement.

SINWA valves were tested in accordance with API-591 RP and approved.
SINWA offers the majority of materials known and used for this product line, including but not limited to:

1. Carbon Steel like WCA, WCB, WCC, etc.

2. Low Carbon Steel like LCB, LCC, etc.

3. Low Alloy Steel like WC1, WC5, WC6, WC9, etc.

4. Low Carbon Low Alloy Steel like LC2, LC3, etc.

5. Medium Alloy Steel like C5, C12, C12A, etc.

6. Stainless Steel like CF8, CF8M, CF8C, CF10, CG8M, etc.

7. Low Carbon Stainless Steel like CF3, CF3M, CG3M, etc.

8. Super Stainless Steel like CN7M(Alloy 20), CN3M (Alloy 20 modified), CT15C, etc

9. Duplex Stainless Steel like CE8MN, CD6MN, CD3MN, etc.

10. High Nickel Alloys like Monel M30C, Monel M35-1, Monel CZ100, Inconel CY40 (Inconel 600), CW2M (Hastelloy C4), N12MV (Hastelloy B), CW12MW (Former Hastelloy C-276), CW6M (New Hastelloy C-276), CU5MCuC (Incoloy 825), N7M (Hastelloy B2), CW6MC (Incoloy 625), etc.

11. Super Duplex Stainless Steel like CE3MN, CD3MNWCuN, etc.

12. Aluminum Bronze like 95500,95600, 95800, etc.