All our products are designed and manufactured strictly in conformity with the standard of API, ANSI, AWWA, JIS, BS and DIN, etc. Most of our manufacturers have obtained ISO 9001, API 6D, TUV and CE certificates to ensure the quality stability of the products. We provide EN10204-3.1B. Mill Test Certificate for all our supplied products.
Our products range covers all kinds of ball valves, gate valves, globe valves, check valves, butterfly valves, plug valves, safety relief valves, bellow sealed valves, diaphragm valves, steam traps, knife gate valves, strainers, quick couplings, all types of flanges, pipe fittings, boltsνts&gaskets, steel plates, tubing and casing, line pipes and other pipeline equipment & components, with the materials of carbon steel, alloy steel, stainless steel, grey iron, ductile iron, brass and bronze. Our products are utilized widely in oil, gas, hydraulic, refining chemicals, petrochemicals, pharmaceuticals, food industries, fire-safe systems, marine systems and power stations, etc.
1.Size: 1/4" to 2"
2.Class: 150LB to 2500LB
3.Type: Forged Steel gate valves, ball valves, globe valves, swing check valves, lift check valve etc. Bolted bonneted or welded bonnet, reducer bore or full bore, Screwed end or SW end.
4.Material: A105, LF2, F304, F316, F304L, F316L, F11, F22, F51, F5, F9, etc.
1.Design and manufacture: API602, BS5352
2.Test and inspection: API598
3.Socket weld end: ANSI B16.11
4.Screwed end: ANSI B1.20.1
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of piston foring steel check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.