Motorized cryogenic ball valve

Motorized cryogenic ball valve introduction
Motorized cryogenic ball valve is suitable for medium temperature -40℃ ~ -196℃,motorized cryogenic ball valve is called low temperature ball valve,which is mainly used for ethylene, liquefied natural gas (LNG) plant, gas LPG, LNG storage tanks to accept base and goonhilly, air separation equipment, oil chemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide cryogenic storage tank and tank lorry, psa oxygen generating device, etc.The output of liquid low-temperature media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, not only flammable and explosive, but also in the heating to gasification, gasification, the volume expansion of hundreds of times.

Motorized cryogenic ball valve performance
Size: 1/2 ~ 24 "(DN15 to 24"))
Pressure grade: 150~1500LB(PN16~PN250)
Connection: Flanged, welded, threaded.
Cryogenic ball valve materials: LCB, LC3, CF8.
Working temperature: -46℃, -101℃, -196℃.
Applicable medium: liquefied natural gas, ethylene, propylene, etc.
Driving mode: manual,gear, bevel gear, electric,pneumatic.

Motorized cryogenic ball valve characteristics:
1. An extended bonnet to the cryogenic ball 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. 

Motorized cryogenic ball valve Material selection
The material of liquefied natural gas valve is very important, the material is not qualified, will cause the outer leakage or inner leakage of the shell and sealing surface;The comprehensive mechanical properties, strength and steel degree of the parts can not meet the use requirements or even fracture.Causes the liquefied natural gas medium to leak causes the explosion.Therefore, in the development, design and development of liquid natural gas valve process, material is the primary key problem.Valve body and bonnet: LCB(-46℃), LC3(-101℃), CF8 (304) (-196℃).

Motorized cryogenic ball valve Low temperature treatment
Our factory to the production of motorized cryogenic ball valve through special low-temperature treatment, the rough machining parts in the cooling medium for several hours (2-6 hours), to release the stress, to ensure the low-temperature performance of materials, to ensure the precision machining size, in case of the valve in low-temperature working conditions, caused by temperature deformation caused by leakage.

Motorized cryogenic ball valve main part material

No	Part name	AS to ASTM		SS to ASTM
1	Body	Type A352 LCB	Type A352 LC3	Type F304(L)	Type F304(L)
2	Bonnet	Type A352 LCB	Type A352 LC3	A182 F304(L)	A182 F304(L)
3	Bolt	A193L7	A193 3 B8	A193 B8	A193 B8M
4	Nut	A193L7	A194 8	A194 8	A194 8M
5	Seal ring/Gasket	RTFE+Cu/Nylon/1010/PPL
6	Ball	A182 F304	A182 F304（L）	A182 F304(L)	A182 F316(L)
7	Shaft	A182 F304	A182 F304（L）	A182 F304(L)	A182 F316(L)
8	Packing	RTFE+Cu/Nylon1010/PPL/Graphite
9	Gland	A105N	A351 CF8
10	Lever	A193 L7	A193 B8	A193 B8	A193 B8
11	Suitable temperature	≥-40°C	≥-101°C	≥-196°C

Motorized cryogenic ball valve technical parameter:

Optional functions of electric actuator	switch type, integral type, adjusting type, intelligent type
Optional models of electric actuator	QM, QC series
Voltage	AC220V, AC110V, AC380V, DC12V, DC24V, DC110V
Nominal diameter	DN15mm ~ DN600mm
Nominal pressure	PN1.0MPa~PN10MPa,CL150-CL600
Applicable temperature	-196 - +29ºC
Connection mode	flange or welding
electric ball valve Body material	Stainless steel, Forged Steel , LCC/LCB, CF8/CFM8
electric ball valve ball material	Stainless steel, Forged Steel , LCC/LCB, CF8/CFM8
Seat lining	Soft seated or metal seated
Motorized cryogenic ball valve Suitable medium	ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products etc.

 
Motorized cryogenic ball valve actuator technical parameter:
Supply voltage: AC220/380V, 50/60Hz
Output torque: 50N·M ~ 2000N·M
Action range 0 ~ 90° 0 ~ 360°
Action time 15 seconds /30 seconds /60 seconds
Protection device overheating protection
Ambient temperature -30° ~ 60°
Manual operation is the same as equipped handle operation
Limit electrical and mechanical double limit
Protection level equivalent to IP-65
ExdII BT4;ExdII BT6 can be customized for special requirements
Position measurement with optional switch or potentiometer
Drive motor 8W/E
Incoming line interface PE1/2 "incoming line lock