FLOEC Industrial Valves
Butterfly Valves
Wafer-type FLOEC butterfly valves with an integrally moulded elastomer body sleeve for longer durability and easy performance, with minimum resistance between disc and sleeve.
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Trusted Across Process Industries
Valves and engineered equipment from the AB Group supplied to leading oil & gas companies and government undertakings across power, steel and mining.
Product Overview
Wafer-Type Valves with an Integrally Moulded Sleeve
FLOEC wafer-type butterfly valves are designed with an integrally moulded elastomer body sleeve, especially for longer durability and easy performance. The moulded sleeve ensures minimum resistance between the disc and the sleeve.
They are designed and manufactured as per BS 5155, API 609 and AWWA C504, and are appropriate to mount between flanges of ASME B16.5 (150#) or BS-10 Table D/E. Pneumatic and electrical actuated valves can be customized, with a top platform suited to mount an actuator or manual gearbox directly.
Unique Features
Engineering Details That Define FLOEC Butterfly Valves
Seat retention
Integrally moulded elastomer liner prevents the dislocation of the seat, which enhances durability.
Body, disc and stem sealing
An ideal seal between body, disc and stem is created by a flat surface on the disc and the liner at the top and bottom.
Media isolation from body
The elastomer body liner extends deep through the disc shaft passages with an integral O-ring, so the working media never contacts the body material.
Primary stem seal
A primary seal at the top of the body keeps foreign particles out, extending stem life and keeping operation smooth.
Minimised pressure drop
The disc design keeps flow smooth and straight, minimizing pressure drop across the valve.
Low operating torque
Close tolerances between liner, disc and stem minimize operating torque for smooth, easy operation.
Integral mounting gasket
The moulded liner holds an integral gasket at both ends of the valve, so no separate mounting gaskets are needed.
Design standards
Designed and manufactured as per BS 5155, API 609 and AWWA C504.
Flange mounting
Appropriate to mount between flanges of ASME B16.5 (150#) or BS-10 Table D/E.
Actuated options
Pneumatic and electrically actuated valves can be customized to project requirements.
Direct actuator platform
A top platform on the valve is suited to mount an actuator or manual gearbox directly.
Flow control lever
A flow control lever allows excellent, repeatable control of the flow.
Technical Specification
Butterfly Valve Data
| Size Range | 2″ – 72″ (40 NB through 1200 NB) |
|---|---|
| Pressure Rating | PN 6–40 · ASME/BS 125# / 150# / 300# · PN10 / PN16 / PN25 |
| Type | Center disc, single / double / triple offset disc. Fully lined body / unlined body |
| End Connection | Wafer / Lugged / Flanged |
| Operation | Wrench / Manual gear / Pneumatic and motorized |
| Port Opening | Full |
| Seat | Metal to metal / Natural, Neoprene, Nitrile, EPDM, Silicon, Viton rubber or PTFE |
| Disc | Solid – dual shaft / single shaft |
| Gasket & Packing | Equivalent or better than seat material |
| MOC | Refer Material Chart |
| Design Code | API 609 / BS 5155 / AWWA C504 |
| Testing | API 598 / BS 6755 Part-I |
| Inspection | 3rd party / Client / Manufacturer |
Material of Construction
FLOEC Material Chart
Standard body, bonnet and trim combinations. Other materials are available on request; 600# and above are supplied with Stellite trim as standard.
| # | Body – Bonnet Material | Trim (Wedge / Seat / Disc) | Stem |
|---|---|---|---|
| 01 | Cast carbon steel ASTM A216 Gr. WCB / WCC | 13% Cr. S.S. | A182 F6 |
| 02 | Cast steel ASTM A352 Gr. LCB and LCC | A351 CF8 | A182 F304 |
| 03 | Low alloy steel ASTM A217 Gr. WC1, WC6, WC9, C12 | 13% Cr. S.S. | A182 F6 |
| 04 | Stainless steel 304 ASTM A351 Gr. CF8 | A351 CF8 | A182 F304 |
| 05 | Stainless steel 304L ASTM A351 Gr. CF3 | S.S. 304L CF3 | A182 F304L |
| 06 | Stainless steel 316 ASTM A351 Gr. CF8M | S.S. 316 CF8M | A182 F316 |
| 07 | Stainless steel 316L ASTM A351 Gr. CF3M | S.S. 316L CF3M | A182 F316L |
| 08 | Alloy 20 ASTM A351 Gr. CN7M | CN7M | UNS N08020 |
| 09 | Duplex SS CD4MCu / CuN / CD3MN | Duplex steel | UNS S32205 |
| 10 | Super duplex A890 Gr. 1A, 1B, 1C, 2A, 3A, 4A, 5A, 6A | Super duplex steel | UNS S32550 |
| 11 | Super alloy steel – Hastelloy Gr. B and C | Hastelloy B/C | Hastelloy B/C |
| 12 | Forged carbon steel – ASTM A105 | 13% Cr. S.S. | A182 F6 |
| 13 | Forged alloy steel – ASTM A182 F11, F22 | 13% Cr. S.S. | A182 F6 |
| 14 | Forged SS A182 F304 / 304L / F316 / 316L | F304/L / F316/L | F304/L / F316/L |
| 15 | SG / Ductile / C.I. of different grades | 13% Cr. SS / CF8 / CF8M | A182 F6 / F304 / F316 |
| 16 | Copper alloys of different grades | Cu. alloys / F304/L / F316/L | Cu. alloys / F304/L / F316/L |
Standards & Testing
Specified to Recognised Codes
Certified & Recognised
Accreditations You Can Verify
FLOEC valves are designed, manufactured and dispatched under an audited quality management system. Select a certificate to view the full document.
ISO 9001:2015Bureau Veritas Certification
Design, manufacture and dispatch of manual, electric and pneumatic operated industrial valves.
NSIC RegistrationThe National Small Industries Corporation
Government Purchase Enlistment Certificate for industrial valve manufacture.
Quality Mark AwardQuality Mark Trust
Certificate of Recognition in the Valve Manufacturers category.
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