Disc Seal Butterfly Valves
Seal on Disc High Performance Butterfly Valves utilise a rubber seal which is clamped to the disc edge.
The Double Offset design ensures a constant seal contact when the valve is in the closed position, and allows the disc to immediately disconnect from the seat upon opening, thus reducing wear and seating torque.
The design is suitable for both Control or On/Off operation with Shut Off to ANSI /FCI 70-2 Class VI.
Size Range
- 6" to 84" - 150mm to 2200mm
Rating
- ANSI 150#
- -20°C to 120°C
Drilling
- BS4504 PN6 - PN16
- BS 10 Table A-F
- ANSI B16.5
End Connections
- Wafer
- Lugged
- Double Flanged
- Butt Weld
- Face to face dimensions generally in line with
- - API 609 Category A (Lug & Wafer)
- - API 609 Category C (Double Flanged Short Pattern)
- Valves of non standard dimensions can be made as direct replacements for valves no longer available thus avoiding expensive pipe-work alterations.
Seat Ring
EPDM, Nitrile, other Materials on Request
Materials
Carbon Steel, Stainless Steel, Aluminium Bronze, Monel, Hastelloy, Titanium, Duplex, Super Duplex and most other castable alloys.
Actuation
Manual, Pneumatic, Electric, Hydraulic & Electro-hydraulic
All actuation can be supplied complete with full control instrument package.
Downloads
Please click below for product specification download:
Disc Seal Butterfly Valve, DN150 - DN2200 (6" - 84")
