Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China steel valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem iron valve are suitable for acid, alkali, water, steam, seawater, coal gas and natural gas. They are widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy. The use of specialized software of Pro/E and CAD has shorted the P&D and trial manufacture cycle, and greatly improved the service life and dependability of products. Our high-quality products have been exported to the North Amercia, UK, USA, Germany, Italy, India, France, Australia, Japan.

Material: malleable iron ,Common carbon steel, alloy steel, stainless steel, ductile iron.copper ,aluminium. Standard: JIS, DIN, ASTM,BS. Gravity casting, pressure casting, low-pressure casting and sand casting, investment casting, die casting, permanent mold casting
Delivery Time:Within 25 days after receiving order. Payment Term: T/T , L/C at sight.
Advantages: Competitive price; Long production history; international quality certified;skilled workers; accept small order; Reliable reputation.316L ultra low carbon and back seal stainless steel valves fill in the gap that has hitherto not existed in the industry of Chinese marine valve, and their distinctive structure and advanced processing technique are initiated in China. In addition,the company can design and produce new type of valves as per customers'requirements.

HAIHE Forged Check Valves have three designing methods on bonnets. Firstly bolted bonnet, bodies and bonnets are connected by bolts if valves are designed in this way with voluble gaskets sealing (they are made from 304 flexible graphite) or metal rings sealing if any special request is from customers. Secondly welded bonnets, bodies and bonnets are connected by screws if valves are designed in his way with seals welded completely. If any special request is from customers the penetrated welding is available. Thirdly pressure-tight bonnets, bodies and bonnets are connected by thread with inner pressure and self-sealing seals. Forged valves have three designing structure: lift check valves, ball check valves,and swing check valves. Designing Structure and Features of Forged Check Valves. HAIHE Forged Globe Valves are designed and manufactured according to MSSP-118 and ASME B16.34. Product testing and inspecting accord to API 598 marked as per MSS-SP-25.

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