Flange connection Cryogenic ball valve is used for low temperature working condition,especially for some hazard media, such as liquidized natural gas. Applied to LNG plant, LNG receiving station, LNG gasification station and LNG carrier and ship...
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Semi-Spherical Fixed High Platform Ball Valve is used for low temperature working condition,especially for some hazard media, such as liquidized natural gas. Applied to LNG plant, LNG receiving station, LNG gasification station and LNG carrier and ship.
1. An extended bonnet to the valve can make the packing gland in the valve and the actuator further away from the cold process so the valve can open and close properly, protect it from freeze-damage caused by low temperature fluid.
2. Low operating torque for smoother operations.
3. Excellent seat and seal design minimizes leakage.
4. Fire-safe design.
5. Rigid body construction minimizes thermal shrinkage.
6. By adopting different materials, the cryogenic ball valve is applicable to different working temperature and medium. The minimum temperature for the ball valve is -196ºC.
| No | Part Name | Materials |
-46°C~-101°C~-196°C | |||
1 | Left Body | A352-LCB,LCC,LC3,A351-CF8,A351-CF8M | |
2 | Seat | PTFE,RPTFE,PEEK,PPL,POM,KARBATE | |
NYLON,MOLON,DEVLON | |||
3 | Ball | A182-F304,F316 | |
4 | O-ring | VITON | |
5 | Gasket | Flexible graphite+304,flexible graphite+316,PTFE | |
6 | Bolt | A194-4,8,8M | |
7 | Nut | A320-L7,A193-B8,B8M | |
8 | Right body | A352-LCB,LCC,LC3,A351-CF8,CF8M | |
9 | Spring | ss304,316 | |
10 | Small ball | PTFE | |
11 | Thrust washer | A182-F6,F316,F316 | |
12 | Stem | Flexible graphite,PTFE | |
13 | Gasket | A182 F6,F304,F316 | |
14 | Packing | A352 LCB,A351 CF8 | |
15 | Gland | 1025,stainless steel | |
16 | Gland flange | A216 WCB | |
17 | Stop plate | 1025 | |
18 | Lever | 1035,stainless steel | |
19 | Screw | A352-LCB,LCC,LC3,A351-CF8,CF8M | |
20 | Screw | 1035,stainless steel | |
21 | Extended bonnet | A352-LCB,LCC,LC3,A351-CF8,CF8M, | |
22 | Screw | 1035,stainless steel | |
23 | Bushing | A182-F6,F304,F316 |
Main Dimensions
| Size(in) | H | ||
-46°C | -101°C | -196°C | ||
1/2 | 90 | 110 | 130 | |
3/4 | 100 | 110 | 140 | |
1 | 100 | 120 | 150 | |
1 1/2 | 110 | 130 | 160 | |
2 | 110 | 130 | 170 | |
3 | 120 | 150 | 190 | |
4 | 130 | 160 | 200 | |
6 | 140 | 170 | 220 | |
8 | 140 | 170 | 220 | |
10 | 150 | 180 | 240 | |
12 | 150 | 180 | 240 | |
14 | 160 | 190 | 250 | |
16 | 160 | 190 | 250 | |
18 | 160 | 190 | 250 | |
20 | 170 | 200 | 260 | |
24 | 170 | 200 | 260 | |
| Nominal diameter | DN15- DN250 |
| Nominal pressure | 150LB- 300LB |
| Working temperature | -196 - +29ºC |
| Driving means | handle, electric actuator |
| Material | Stainless steel, Forged Steel , LCC/LCB, CF8/CFM8 |
