Cryogenic butterfly valves are used in liquefied natural gas (LNG) propulsion technology for offshore vessels. Butterfly valves are used in onboard fuel tanks, LNG storage tanks, gas supply systems (FGSS) and systems such as LNG engines and gas turbines.
Valve size: NPS2 ~ NPS24 DN50 ~ DN600
Pressure rating: 150LB ~ 300LB, PN10 ~ PN64
Material: LCB, LC1, LC2, LC3, LC9, CA6NM, CF8, CF8M
Design and manufacturing standards: GBT 24925, API 609, GB/T 12238, JB/T 8527, EN 593
Face to face standards: ASME B 16.10, API 609, GB/T 12221, EN 558
End standard: Any standard can be set as required, the connection can be flange, butt weld, clip, lug
Stress test standards: GB/T 13927, API 598, BS EN 12266 -1
Quality / Product Certification: ISO 9001, API 6D, PED 2014/68/EU, EAC, ATEX and OSHAS 18001
Safety and reliability: in line with SIL3
Optional valve actuators: polished rods, gears, handles, pneumatic actuators, hydraulic actuators, gas actuators,
Gas oil actuator, electric actuator, hydraulic/electric actuator, hydraulic actuator
Sealing grade: API 598 (zero leak), grade six (FCI 70-2), ISO 5208 grade A
Material of Cryogenic Butterfly Valve
| No | Part | Material |
| 1 | Body | ASTM A351 CF3M |
| 2 | Seal Ring | Graphite + SS316L |
| 3 | Retainer Flange | ASTM A182 F316L |
| 4 | Pin | ASTM A276 316L |
| 5 | Disc | ASTM A351 CF3M |
| 6 | Stem | ASTM A276 316L |
| 7 | Stem Packing | Graphite |
| 8 | Stem Beating | SS316L + R.TFE |
| 9 | Bolt | ASTM A193 B8M |
| 10 | Nut | ASTM A194 8M |
| 11 | Yoke | ASTM A351 CF3M |
Cryogenic butterfly valve features:
- Cryogenic design
Cryogenic butterfly valves are designed for service at temperatures below the zero line. These valves handle cryogenic fluids efficiently and reliably with minimal maintenance requirements
- Compact design for better temperature control
The compact size of the butt and lug type valves allows for the shortest temperature stabilization time when heating or cooling the line.
- Application Flexibility
Stainless steel materials of construction provide maximum service flexibility and media application.
- Designed for actuation and easy adjustment
Integral welded shaft and bonnet extensions allow the valve actuator to be mounted above pipe insulation and allow easy adjustment of stem packing gland pressure
GNEE Butterfly Valves in Stock
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