high quality machined ball valve closure cover

Suzhou RSF Valve Co., Ltd is one of leading professional valves and valve parts manufacturing company from China. Our company is established in the year of 2010. RSF Valve is committed to provide our customers with professional one-stop valves and valve parts solution which include full range products, good quality control, competitive price, quick delivery and excellent after-sales service.

We have three main series of products which including oil & gas Industry Valves, API 6D Ball Valve Parts, and ductile iron Water Valves.

The first series of our products is Industry Valves which includes cast steel or forged steel Gate Valve, Globe Valve, Check Valve, Ball Valve, Butterfly Valve, Plug Valve, etc. Applicable standards of our Industry Valves include: basic design standards of API 600, API 6D, API 609, API 599, ASME B16.34, API 504, BS1873, BS1868, BS5351, EN593; Testing standards of API 598, API 6D, EN12266, API 607, API 6FA, etc. Cast steel material ranges: WCB, LCB, LCC, WC1, WC5, WC6, WC9, C5, C12 C12A, CF8, CF8M, CF3, CF3M, CF8C, 4A, 5A, etc. Forged steel material ranges: A105N, LF2, F11, F22, F304(L), F316(L), F321, F51, F53, F55, F61, etc. Pressure rating from Class 150 to Class 4500. Size ranges from 1/2" to 56".

The second series of our products is Ball Valve Parts which includes finish-machining forged steel ball valve bodies, closures (cover, bonnet), trunnion, shaft, support plate, ball valve seat ring, gland, adapter, and fittings (drain, vent, plug, tapon, greaser, injector, check valve). Main material includes ASTM A105, ASTM LF2, AISI/SAE4130/4140, ASTM A 182 F 316(L), F304(L),17-4PH(UNS S 17400), F44, F51,F53,F55,410,F6A, A694 F60 etc. As well as forging worshop, heattreatment workshop, we have our own welding workshop which enable us to provide cladding of valve bore to our customer, our WPS and PQR have been certified by TUV.

The third series of our products is Water Valves which includes Resilient Seat Gate Valve, Metal Seat Gate Valve, Non-Return Valve (Swing Check Valve, Dual Plate Check Valve, Nozzle Check Valve, Butterfly Tilting Disc Check Valve), Butterfly Valve, Globe Valve, Plug Valve, etc. Applicable standards, of our Water Works Valves include basic design standard of EN1171, DIN3352, DIN3202, BS5163, BS5153, EN593, AWWA C509, AWWA C515, AWWA C504, API 609, MSS SP, AS 2683.1, AS 2683.2; Testing standard of EN12266, API 598; Material ranges ductile iron GGG50, GGG40, EN-GJS 500-7. Pressure rating includes PN6, PN10, PN25, Class 125, Class 150. Size ranges from DN40 to DN3000 (1-1/2" to 120").

We are an exporting-oriented company. Around 90% our turnover is contributed from oversea market. Our main market is West Europe, America, Australia and Middle East area. Our valves have already been exported to more than 30 countries like USA, Canada, Brazil, Spain, Italy, Switzerland, Germany, France, UAE, Saudi, Iran, Australia, Russia, etc.

Our company has been certified by ISO9001:2015, ISO 14001, ISO 18001, CE/PED 2014/68/EU, WRAS, AD 20000-Merklatt W 0 and API 600, API 6D, API 20B, API 20C.

Our principle is Quality First, Customer First. In any of cases, you can always trust RSF VALVE with our name meaning- Reliable, Satisfied, and Friendship.