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High Quality Forged Steel Finish-Machining Valve Seat Ring

  • High Quality Forged Steel Finish-Machining Valve Seat Ring
  • High Quality Forged Steel Finish-Machining Valve Seat Ring
  • High Quality Forged Steel Finish-Machining Valve Seat Ring

High Quality Forged Steel Finish-Machining Valve Seat Ring

    Min. Order: 10 Piece/Pieces
    Packaging: Fumigation free seaworthy plywood cases
    Productivity: 10000pcs/year
    Transportation: Ocean,Land,Air
    Place of Origin: CHINA
    Supply Ability: 10,000PCS/YEAR
    Certificate: ISO 9001, CE/PED 2014/68/EU, API 20C, API 20B
    HS Code: 848180901000
    Port: SHANGHAI

Basic Info

Model No.: VC01

Product Description


The valve seat is a surface inside the body of a valve that comes into contact with the disk, which allows flow through the valve or working with valve disc to stop flow.


It’s usually used for carrier of valve seat.


· Gaskets –These aid in creating airtight seals within valves. These are especially useful for filling out imperfections in machined parts that would otherwise compromise the airtightness of the valve.

· Springs – These facilitate rapid opening and closing of the valve to allow and restrict flow through the valve. Springs can be crafted from a variety of materials to accommodate different operating environments, including stainless steel, copper, and others.


Soft Seat (Metallic Seat Ring)

The metallic seat ring, containing nonmetallic insert, usually requires spring force to achieve tight seal. Due to springs, this design is not used in corrosive service. Even though this seat has a metal seat ring, it is categorized as a soft seated ball valve due to its use of soft material insert, which is in contact with the ball.

Metal to Metal Seats

For services unsuitable for soft seating’s, metal and ceramic seating’s are being used. In general practice, hard metal seated ball valves (typically stellite) are only used in the severe service condition such as high temperature, high erosion, corrosion or abrasion, slurry, etc. Metal seats are generally not bubble tight. Metal seats and balls are typically lapped in matching sets resulting in perfect roundness and fitness to ensure smooth operation and tight shut-off and achieving ‘Zero Leakage’. Metal seats come in different classes of Shut Off including Class IV, V and VI. Metal Seat and Ball are fabricated from base metals coated with hard chrome, tungsten carbide and Stellite.

Forged Steel Finish Machining Seat Ring Carrier 3 Rsf Valve JpgForged Steel Finish Machining Seat Ring Carrier 2 Rsf Valve JpgForged Steel Finish Machining Seat Ring Carrier 1 Rsf Valve Jpg

Seat assembly consists in an outer metallic seat carrier with a soft seat insert, provided with outer O-ring to avoid leakage through the seat carrier and graphite back up ring which ensures the tightness in case the O-ring failure. The most commonly used materials are Nitrilic rubber/ VITON for O-Rings, which is specified in American standard SAE AS 568. The moderately compressed section is located into a groove, presenting an O-shaped (circular) section seal and can be used as oil&gas water, air and another fluid seal.

The valve seat is the most critical component of any valve. Simply, if it doesn’t work, the valve doesn’t work. Consequences can range from minimal leakage or shortened life span to catastrophic failure. Depending on the media and environment this can have explosive and life-threatening consequence


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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 Industry Valves, Ball Valve Parts, and 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.

Company Info

  • Company Name: SUZHOU RSF VALVE CO.,LTD
  • Representative: Jack Zhang
  • Product/Service: API 6D Trunnion Mounted Ball Valve & Valve Parts , Floating Ball Valve Metal to Metal Ball Valve , Ball Valve Componnents Ball Valve Parts , EN593 Butterfly Valve Plug Valve Strainer , Resilient Seat Gate Valve Check Valve Globe Valve , BS5163 Metal Seat Gate Valve Ball Check Valve
  • Capital (Million US $): US$1Million
  • Year Established: 2010
  • Total Annual Sales Volume (Million US $): US$5 Million - US$10 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$5 Million - US$10 Million
  • No. of Production Lines: 3
  • No. of R&D Staff: 21 -30 People
  • No. of QC Staff: 21 -30 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 30,000-50,000 square meters
  • Factory Location: Dongchuang Hi-Teck Park, Mudu, Suzhou, Jiangsu, China
  • Contact Person: Mr. Jack Zhang
  • Tel: 86-512-66582398
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