Find Double Eccentric 2 Offset Butterfly Valve, Double Eccentric Butterfly Valve Houston Texas, 2 Offset Butterfly Valve RSF Milano on Industry Directory, Reliable Manufacturer/Supplier/Factory from China.

Inquiry Basket (0)
Home > Products > Butterfly Valve > Cast Steel Double Eccentric Butterfly Valve

Cast Steel Double Eccentric Butterfly Valve

Cast Steel Double Eccentric Butterfly Valve

    Payment Type: L/C,T/T
    Terms of Trade: FOB,CFR,CIF
    Min. Order: 1 Piece/Pieces
    Delivery Time: 45 Days
    Packaging: Plywood Case
    Productivity: 100,000PCS/YEAR
    Brand: RSF or Customer's LOGO
    Transportation: Ocean,Land,Air,Train
    Place of Origin: China
    Supply Ability: 100,000PCS/YEAR
    Certificate: ISO CE API 6Fa API 607
    HS Code: 8481804090
    Port: Shanghai,Ningbo

Basic Info

Model No.: BFV01

Product Description

We are a leading manufacturer of oil and gas industry valves, we have more than 15years experience in producing cast steel double eccentric wafer type Butterfly Valve and lug type butterfly valve.The main function of our Cast Steel Double Eccentric Butterfly Valve is to control fluid flow rate in pipeline: turn gear box or other actuator, the disc will rotate; lock the disc at the specified angle by locking device; the fluid flow rate depends on the disc angle; when the disc is turned 90℃ to the valve bore center line, the pipeline is cut off.

The Cast Steel double eccentric butterfly valve and Tripple Offset Lug Type Butterfly Valve are differentiated from their on-off block cousins by the name high-performance butterfly valves. In simple terms, the high-performance butterfly Control valve is a quarter-turn rotary-motion valve that uses a rotating round disk as a regulating element.

When fully open the cast steel double eccentric wafer butterfly valve or triple offset butterfly valve, the disk actually extends into the pipe itself, which makes butterfly valves distinct from other valve designs. Butterfly valve bodies have very narrow face to face dimensions compared to other types of valves, allowing the body to be installed between two pipe flanges without any special end connections. This type of arrangement is called a through bolt connection and is only permissible with certain bolt lengths.

The double/triple Eccentric butterfly valves are valves designed specifically for high-performance throttling services, using a disk that is offset from the center of the valve body.

For throttling services, the double/triple eccentric butterfly valves are designed with a disc that is offset from the center of the valve body. When butterfly valve is automated, triple eccentric lug butterfly valve is preferred since the disc does not make contacting with the seat until closing, which prevents premature wear of the seat with the continual positioning associated with automated throttling.


Basic Design: EN593, API609, MSS SP-68

Face to Face: ISO5752, EN558, API 609

Connecting Ends: EN1092-2, ASME B16.5, ASME B16.47 A

Test: EN12266-1, API 598

Design Feature:

Double Flange Ends, BW, LUG, Wafer Connecting

Eccentric Disc to Eliminating Friction between Disc and Seat


Soft Seat or Metal to Metal Seat

Size Range: DN100 to DN1200 or 4” to 48"

Pressure Class: PN10, PN16, PN25, PN40, PN60, PN100, ANSI Class 150 to Class 600


Body: WCB, LCB, LCC, WC5, WC6, WC9, CF8, CF8M, CF3, CF3M, 4A, 5A

Disc: WCB, LCB, LCC, WC5, WC6, WC9, CF8, CF8M, CF3, CF3M, 4A, 5A

Shaft: SS416, SS431, F304, F316, F51, 17-4PH

Seat: PTFE, SS316 +Graphite, Completely Metal to Metal


Gear, Electric Actuator, Pneumatic Actuator


Stem Extension, Cryogenic Service, AUMA ROTORK Actuator, Carboline Painting, NACE MR 01-75

Thanks for your selection of RSF’s Cast Steel double Offset wafer Type Butterfly Valve! If you have any inquiries of our oil and gas industry valves such as wafer type butterfly valve, lug type butterfly valve or flange end butterfly valves, please don’t hesitate to contact with me!

2offset Butterfly ValveTriple Offset Butterfly Valve LugTriple Offset Butterfly Valve Flange 1


  • 1
  • 2
  • 3
  • 4

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
Email to this supplier
  • *Subject:
  • To:

  • *Messages:
    Your message must be between 20-8000 characters