Forged Steel Gate Valve

The Gate Valve is used when the need exist for a device that allows an interruption or cut off the flow of a fluid.

Is not recommendable to use Gate Valves for flow modulation as the high velocity of the through may result in erosive damage to the wedge and seats when the valve is partially opened. Under normal operating conditions, the valve should remain either fully open or fully closed. Installation of a Gate Valve is independent of the flow direction.

Design Features

• Valves in accordance with API-602.

• Socket Weld, Threaded, Combined or Flanged RF or RTJ ends.

• Bolted Bonnet or Welded Bonnet options.

• Renewable or integral seats.

• Low fugitive emissions control.

• NACE Service either MR-0175 or MR-0103.

• Test in accordance with API-598

FORGED STEEL, ALLOY AND STAINLESS STEEL

SINWA offers this product line manufactured in accordance with API-602. and ANSI Classes 800, 1500 and 2500 for socket weld, threaded and combined ends. Also available are Integral Flanges in 150, 300, 600 and 1500 either Raised Face or ring type joint ends.

SINWA keeps a large quantity of these valves in stock in the most common trims used by the industry. For Certain Customer applications where forged material is not available (specifically for high nickel alloys), SINWA has developed this product line using sand casting. In order to keep the same quality level as forged, these castings are produced with 10% of each lot to be subject to X-ray examination.

SINWA offers the majority of materials known and used for this product line, including but not limited to:

1. Carbon Steels A105.

2. Low Carbon Steels LF2, LF3.

3. Low Alloy Steels F1, F11, and F22.

4. Medium Alloy Steels F5, F9, and F91.

5. Stainless Steel Valves F304, F316.

6. Low Carbon Stainless Steel F304L, F316L.

7. Duplex Stainless Steel F51, F53.

8. Nickel Alloys Inconel, and Monel. When cast steel valves are manufactured in accordance with API- 602. as an acceptable option, WALWORTH offers this product line in the following materials either socket weld, threaded or flanged ends:

1. Stainless Steels CF8, CF8M, CF8C, CF10, CG8M.

2. Low Carbon Stainless Steels CF3, CF3M, CG3M.

3. Super Stainless Steels CN7M (Alloy 20), CN3M (Alloy 20 modified), CT15C.

4. High Nickel Alloys 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 (Inconel 625).

5. Duplex Stainless Steel CE8MN, CD6MN, CD3MN.

6. Super Duplex Stainless Steel CE3MN, CD3MNWCuN.

7. Aluminum Bronze 95500, 95600, 95800.