Frenstar Valves cryogenic LNG valves are widely used throughout the world, from liquefaction plants to liquefied gas tankers and receiving LNG tank terminals, in critical and hazardous conditions at temperatures as low as -196℃ with safe and efficient service.
Frenstar Valves manufacture and supply LNG Cryogenic butterfly valves, LNG Cryogenic ball valves, LNG Cryogenic gate valves, LNG Cryogenic globe valves & LNG Cryogenic globe valves.
What is Liquefied Natural Gas (LNG)?
LNG is a non-toxic liquid which forms when natural gas is cooled to -162ºC (-260ºF). The cooling process shrinks the volume of the gas, making it easier and safer to store and ship. In its liquid state, LNG cannot ignite.
When LNG reaches its destination, it is turned back into a gas at regasification plants. It is then piped to homes, businesses and industries where it is burnt for heat or to generate electricity.
Cryogenic LNG Butterfly valve
LNG Triple Eccentric Metal Seated Cryogenic butterfly valves are suitable for bi-directional flow and bubble tight shut-off at full rated pressure with extended bonnet according to BS 6364, Direct Mount ISO table, adjustable gland packing, one-piece blow-out proof stem, pinned disc and metal seat.
The materials used throughout are austenite stainless steel which maintains its strength at low temperatures. The sealing system is metal seated providing bi-directional bubble tight shut-off.
An extended bonnet design is used to create an insulation gas column between the stem packing and the cold fluid. This design prevents hardening and shrinking of the packing.
Butt-welding ends have a side entry maintenance system that allows replacement of the sealing ring without removing the valves from the pipeline.
All Frenstar Valves are tested at cryogenic temperature with “Manifold System” which can examine the performance as if “in-line” in an actual service condition.
Flanged
TOV-LF
Side entry design, inspection & maintenance access by removal of up or downstream piping.
Size Range : DN 100 – DN 2000 (4” – 80”)
Pressure Classes : ANSI/ASME 150 LBS, 300 LBS, 600 LBS,
900 LBS and 1500 LBS
- Flanged end connections
- Side entry
- Extended Cryogenic Bonnet (BS 6364)
- One piece blow-out proof stem
- Direct mount ISO table, no additional brackets required
- Adjustable gland packing, can be adjusted without removal of the actuator
Butt-Weld
TOV-LBW
Side entry design with inspection & maintenance cover for in-line inspection & maintenance access.
Size Range : DN 100 – DN 2000 (4” – 80”)
Pressure Classes : ANSI/ASME 150 LBS, 300 LBS, 600 LBS,
900 LBS and 1500 LBS
- Butt-weld end connections
- Side entry
- Extended Cryogenic Bonnet (BS 6364)
- One piece blow-out proof stem
- With an Inspection and maintenance cover for in-line access
- Direct mount ISO table, no additional brackets required
- Adjustable gland packing, can be adjusted without removal of the actuator
Operation
- Manual worm gear operation
- Single or double acting pneumatic actuator
- Hydraulic actuator
- Electric motor actuator
Standards : Design and testing in accordance with API 609, API 598 and BS 6364 Valves for Cryogenic Service. Fire Safe approved in accordance with API 607
Materials : Stainless Steel 316, 316L, others on request.
Production Range : Size : DN 100 – DN 2000 (4” – 80”)
Working Pressure : Up to 250 Bar (3625 PSI)
Working Temperature : -196°C to + 815°C
Pressure Classes : ANSI/ASME 150 LBS, 300 LBS, 600 LBS, 900 LBS and 1500 LBS. Others on request.
Testing
All cryogenic valves are tested in the fully equipped cryogenic in-house testing facilities.
Frenstar Cryogenic Valves Under Test
- Flange Rating : ASME B 16.5 Class 150LB, 300LB
- Working Pressure: Up to 50bar
- Working Temperature: -196ºC ~ +815ºC
Models
- TOV-LF (Flanged)
- TOV-LBW (Butt-Weld)
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Description |
CRYOGENIC BUTTERFLY VALVE
Triple Eccentric Metal Seated Cryogenic butterfly valves |
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Design Code |
API 609 / EN593 / ASME B16.34 / EN 12516 |
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Size Range |
NPS 4" - 80" / DN 100-2000 |
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Max. Pressure / Rating |
ANSI 150#, 300#, 600#, 900# & 1500# |
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Design Temperature |
-196ºC to +815ºC |
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End Connections |
Double Flanged / Butt-Weld |
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Seat Leakage |
Bi-Directional Bubble Tight, Shutoff (CL.150 ~ 600), Uni-Directional Bubble Tight, Shutoff (CL.900 ~1500) |
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Body |
Stainless 316 / 316L |
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Disc |
Stainless CF8M / CF3M + STELLITE |
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Extended Bonnet |
Stainless CF8M / CF3M |
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Cover |
Stainless 316L |
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Stem |
Austenitic stainless steel XM-19 |
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Seat |
Stainless 316L |
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