The top flange drilling is line with ISO 5211 standards and therefore fits a large range of gears and actuators. The Cryoseal 2X butterfly valve comes equipped with an PTFE sealing and is also available with copper sealing. To prevent internal stress in the bonnet during the cool-down period, all bonnet joints are bolted. This bonnet is extended to ensure that the gland area remains free from freezing and make the valve suitable for temperatures down to -196°C.
Double Eccentric High Performance Butterfly Valve for LNG
WESTAD CRYOSEAL 2X™ is designed for full shut-off and throttling services.
KLINGER Westad supplied its first LNG valves in the 1960s and the first LNG butterfly valves in 1973. The Westad Cryoseal is the result of decades of refinement.
Cryoseal 2X butterfly valve – Key Features
- Developed for use in LNG systems
- Double eccentric design to reduce wear on seat
- Bi-directional at full pressure rating
- Free access to stuffing box and gland
- Bonnet extension
- Fire safe acc. To API 607
Materials
- Body: ASTM A351 CF3M/CF8M
- Disc: ASTM A351 CF8M Stellited
- Shaft: AISI 316 / ASTM A638 Gr.660 / Nitronic XM-19
- Sealing:PTFE (Elgiloy spring energized) – Fire safe, Copper (Nimonic 90 spring energized) – Fire safe
Specifications
- Temperature range: -196°C to +200°C
- Pressure range: Up to 50 bar
- Flange standards:: ANSI Class 150/300, PN10/16/25/40/50
- Standard size range: 3″ (DN 80) – 40″ (DN 1000) Other sizes on request
- End connection: Butt Welded and Double Flanged
