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Double Offset Butterfly Valve

Material:Carbon Steel or Stainless Steel
  Pressure:ASME Class150~1500LBS (PN16~PN160)
  Size:NPS 2”~48” (50mm~1200mm)
  Connection:RF, RTJ, BW,LUG,WAFER
  Operation:Hand lever, Gearbox, Pneumatic, Electric

Product Description

Material: WCB

Soft sealing:EPDM 

Pressure: ASME Class150

Size: NPS 12”

Connection: Wafer

Operation: Gear

Features: The double offset butterfly valve the design is stem center line deviated body center line and stem center is deviated seat sealing center. This structure is normally RUBBER,PTFE/RPTFE or PTFE+SS sound sealing performance.

It is mainly used for system drainage of water plants, power plants, steel mill smelting, chemical industry, water source project, environmental facilities construction, etc. It is especially suitable for waterway pipelines and is used as regulation and interception equipment. Compared with the centre butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, longer life and good stability.


Application Standard:

Design:API609 ,MSS SP-67,MSS SP-68-97,DIN3840-82,AMSE B16.34,BS 5155

Face-to-face:API609,ASME B16.10,BS 5155,EN1092

Flanged Ends:ASME B16.5/B16.47 /MSS SP-44/DIN/EN1092-1/GOST33259/JIS

BW Ends:ASME B16.25

Inspection Test :API 598,API6D,ISO5208,EN12266-1

Temperature Ratings :ASME B16.34

Certificate:EN 10204 type 3.1

Markings: MSS SP25


Materials: carbon steel, alloy steel, stainless steel, duplex steel,bronze, Inconel,Hastelloy,Monel, Incoloy etc.

Carbon Steel  WCB,WCC, WC6,WC9,C5, C12 etc.

Low Carbon Steel LF2 or LCB,LCC etc.

Stainless Steel CF8, CF8M, CF3M,CF8C etc.

Duplex Steel such as  Alloy 20 etc.

Bronze C95800, RG5 etc.

Other special materials like Inconel 625 could be supplied by request.


Related product Tag:

Rubber seal butterfly valve

Soft butterfly valve

Triple offset soft butterfly valve

Metal seal butterfly valve

High Performance Butterfly Valve

Contact Us
  • Company Name: Aran Flow Technology Co.,Ltd
  • Tel: 0086 577 67357120
  • Fax: 0086 577 67367120
  • Email: sales@aran-valve.com
  • Address: Oubei ,Wenzhou, China
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