Butterfly Valves - Various Pressure Ratings/Materials/Specifications


Score (Europe) Limited offer the supply of butterfly valves

Butterfly valves are quarter turn operation. Operation can be achieved by either manual hand lever, gearbox or other actuator. By truning the stem through 90 Degrees, a disc rotates to achieve fully open or fully closed valve positions. Energisation of the seat to seal interface is by the mechanical force transferred through the stem by the hand lever, however certain designs of butterfly valves also use the process pressure to assist in the energisation of the seal.
General Design Criteria
- Manual Lever, Gearbox or Actuator Operated
- High Performance or Standard Lined
- Concentric, Offset, Double Offset and Triple Offset
- Operating temperature and fluids suitability - further information on request
- Firesafe / Cryogenic / Gas Service certified options
- Modification service available for all stock options
Standard Pressure Class Ratings / End Connections
- ANSI 150, 300, 600, 800, 1500 & 2500lb - Flanged RF, RTJ, Butt-Weld and Hub ends
- PN, API and other Pressure Class Valves available on request
- Standard Carbon Steel: ASTM A105, A216 WCB, WCC
- Low temperature Carbon Steel: ASTM LF2, A352 LCC, LCB
- Stainless Steel: ASTM A182 F316, ASTM A182 F316L, ASTM A182 F304, ASTM A182 F304L, ASTM A182 F321, ASTM A182 F347, ASTM A351 CF8M, ASTM A351 CF3M
- Specials: F44, SMO, F51, Duplex, Super Duplex, Monel, Hastelloy, Titanium, Inconel, Bronze, Alu. Bronze