BFE Economical Butterfly Valve - Concentric - Rubber Lined 
Size - Rating " 1.5"- 72"
Pressure Rating ANSI Class 125 ~ 150, PN10 ~ 16, JIS 10K.
Body Material

CI, DI, WCB, CF8, CF8M, etc.

Disc CI, DI, WCB, CF8, CF8M, even Rubber Lined.
Seat Natural & Synthetic Rubbers
End Connections Wafer & Lugged
Dimensions  Send Inquiry
BFD High Performance Butterfly Valve - Double Eccentric
Size - Rating 2" - 48" - Class 150
Size - Rating 2" - 24" - Class 300
Body Material

WCB, CF8, CF8M, CN7M, etc.

Disc CF8, CF8M, CN7M, etc.
Seat PTFE, 316 & Inconel
End Connections Wafer & Lugged
Dimensions  Send Inquiry

Double Offset Design for High Temperature, Pressure Service

Double Eccentric Disc

In the double eccentric design, the disc rotates freely, not contacting the seat until final closing; then the whole face seats simultaneously for positive shut off with low torque. At the same time, reduced friction extends the life of the metal seat.

Spherical Disc Design

This high-precision machining technique lowers torque and provides a perfect seal. The spherical disc dramatically reduces friction, prevents wear and extends valve life.


High Temperature Services

Designed for operation in high pressure/high temperature services, with combination of seat and disc materials suitable up to 600 C (1112 F) Seat Leakage Rate Class IV as per FCI 70-2

BFT High Performance Butterfly Valve - Triple Eccentric

Size   3" - 48"
Rating Class 150/300/600/900
Body WCB, CF8, CF8M, etc.
Disc WCB ENP, CF8, CF8M, etc.
Seat Laminated SS316 + Graphite / Laminated Inconel 600 + Graphite / PTFE / RPTFE
 Connections Wafer & Lugged
Dimensions  Send Inquiry
Body Steel ASTM A216 Gr. WCB / Alloy Steel ASTM A217 Gr. WC6 / WC9 / Stainless Steel ASTM A351 Gr. CF8 / CF8M
Disc Steel ASTM A216 Gr. WCB + ENP / Stainless Steel ASTM A351 Gr. CF8 / CF8M
Body Seat Laminated SS316 + Graphite / Laminated Inconel 600 + Graphite / PTFE /RPTFE
Body Seat Retainer Ring Stainless Steel ASTM A351 Gr. CF8M
Disc Seat Stainless Steel ASTM A351 Gr. CF8M
 Stem Bearing ASTM A439 Type D2 (Ni-Resist) / SS Backed PTFE
Shaft Steel ASTM  A276 Type 410 / 304 / 316 / ASTM A 564 Type 630 H 1150 + 1150 (17-4PH)
Body / Disc Seal Gasket Graphite
Gland / Gland Flange Stainless Steel Type 316
Gland Packing Braided moulded + Die moulded Graphite Rings
Gear Unit Cast Iron Housing with Gear in S.G. Iron / EN 8 and Worm in EN8/EN19
Surface Protection for Cast Carbon Steel Valves Prime Coat : Chlorine free with modified alkyd resin unobjectionable in physiological and toxicological respects. Additional external coating : Heat Resistant streak aluminum paint

Triple Eccentric Design Minimize wear and Extend Seal Life

Triple Eccentric

1) The centerline of the cone is rotated away from the valve centerline resulting in an ellipsoidal profile and providing the tripe eccentric. With this geometry, seat seal interference is completely eliminated ensuring long sealing life.

2)The result is torque seated, process pressure aided frictionless seal.

3)The geometry allows the body seat to be used as the closed limit stop, aiding operator adjustment.

4)The triple eccentric design is ideally suited to metal seated valves providing bubble-tight performance  on high temperature, high pressure and fire safe applications.


Heavy duty, Wafer & Lugged type, Bi-directional bubble tight shut off, unique pressure energized laminated seat, Triple eccentric design to minimize the deflection; thrust bearing and stem bearing to take axial and torsion load. valves most suitable to provide the ultimate dependable economical flow control. The triple eccentric design aims to combine the control capabilities of ball or globe valve with the inhere benefits of a butterfly valve. Other materials not specified above available upon request.

Please contact Anson Flow or send your inquiry.  

All Rights Reserved. 2020. . Anson Flow Corp.