Low temperature cryogenic ball valve

Low temperature cryogenic ball valve introduction
Low temperature cryogenic ball valve is suitable for the management system of cryogenic liquid storage and transportation equipment. Low temperature cryogenic ball valve has the characteristics of flexible switch and reliable seal, and Low temperature cryogenic ball valve can also be used for other management systems of cryogenic and cryogenic medium.Low temperature cryogenic ball valve is mainly used for the output of liquid low-temperature media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products and other low-temperature media.Low temperature cryogenic ball valve is suitable for the pipeline, used to cut off or connect the medium in the pipeline, with different materials, can be applied to different temperatures and media, the minimum working temperature is -196℃.Low temperature cryogenic ball valve for manual, worm drive, pneumatic or electric. Low temperature cryogenic ball valve generally uses flange connection, also may use the welding connection.

Low temperature cryogenic ball valve working principle 
Low temperature cryogenic ball valve after low-temperature cryogenic treatment, rough machining parts in the cooling medium for several hours (12 hours), in order to release the stress, ensure the low-temperature performance of materials, ensure the processing size, to prevent the valve in low-temperature working conditions, deformation caused by temperature change and leakage.

Low temperature cryogenic ball valve main parameter
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
 
Low temperature cryogenic ball valve technology standard
Design standard: API 6D , ASME B16.34
Structural length: API 6D, ASME B16.10
Test & inspection :API 6D, API 598
Pressure and temperature:ASME B16.34
Flange ends :ASME B 16.5 , JB/T 79
The size of valve connecting flange can be designed according to customer's requirement.

Low temperature cryogenic ball valve Main Parts and Materials

No	Part Name	Materials
		-46°C~-101°C~-196°C LCB(-46℃), LC3(-101℃), CF8(304)(-196℃)
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

Low temperature cryogenic ball valve Main External Dimensions

Size(in)	H (Extension length)(mm)
	-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

Our product range:
Shanghai Huixuan is ball valve factory, China Ball valve manufacturer mainly produce pneumatic ball valve,electric ball valve,floating ball valve,trunnion ball valve,segmented ball valve,high pressure ball valve,cryogenic ball valve,3 way ball valve,PTFE lined ball valve,ceramic ball valve,DBB ball valve,cast steel ball valve,stainless steel ball valve,forged steel ball valve,fully welded ball valve, top entry ball valve,italy water ball valve,direct mount ball valve,plastic ball valve and other ball valves.