Excellent quality Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy

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We are convinced that with joint endeavours, the small business between us will bring us mutual benefits. We could assure you products quality and competitive selling price for Liquid Hydrogen Dewar , Liquid Nitrogen Can , Super Flexible Vacuum Hose , We will continually strive to improve our service and provide the best quality products with competitive prices. Any inquiry or comment is highly appreciated. Please contact us freely.
Excellent quality Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy Detail:

Product Application

The product series of Vacuum Valve, Vacuum Pipe, Vacuum Hose and Phase Separator in HL Cryogenic Equipment Company, which passed through a series of extremely strict technical treatments, are used for transferring of liquid oxygen, liquid nitrogen, liquid argon, liquid hydrogen, liquid helium, LEG and LNG, and these products are serviced for cryogenic equipment (e.g. cryogenic storage tank, dewar and coldbox etc.) in industries of air separation, gases, aviation, electronics, superconductor, chips, pharmacy, biobank, food & beverage, automation assembly, chemical engineering, iron & steel, and scientific research etc.

Vacuum Insulated Shut-off Valve

The Vacuum Insulated Check Valve, namely Vacuum Jacketed Check Valve, is used when liquid medium is not allowed to flow back.

Cryogenic liquids and gases in the VJ pipeline are not allowed to flow back when cryogenic storage tanks or equipment under safety requirements. The backflow of cryogenic gas and liquid may cause excessive pressure and damage to equipment. At this time, it is necessary to equip the Vacuum Insulated Check Valve at the appropriate position in the vacuum insulated pipeline to ensure that the cryogenic liquid and gas will not flow back beyond this point.

In the manufacturing plant, Vacuum Insulated Check Valve and the VI pipe or hose prefabricated into a pipeline, without on-site pipe installation and insulation treatment.

For more personalized and detailed questions about the VI Valve series, please contact HL Cryogenic Equipment Company directly, we will serve you whole-heartedly!

Parameter Information

Model HLVC000 Series
Name Vacuum Insulated Check Valve
Nominal Diameter DN15 ~ DN150 (1/2″ ~ 6″)
Design Temperature -196℃~ 60℃ (LH2 & LHe:-270℃ ~ 60℃)
Medium LN2, LOX, LAr, LHe, LH2, LNG
Material Stainless Steel 304
On-site Installation No,
On-site Insulated Treatment No

HLVC000 Series, 000 represents the nominal diameter, such as 025 is DN25 1″ and 150 is DN150 6″.


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Excellent quality Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy detail pictures

Excellent quality Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy detail pictures


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Adhering to your principle of "quality, assistance, performance and growth", we have now gained trusts and praises from domestic and international customer for Excellent quality Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy , The product will supply to all over the world, such as: UK, Bolivia, Mecca, "Good quality and reasonable price" are our business principles. If you are interested in our products or have any questions, make sure you feel free to contact us. We hope to establish cooperative relationships with you in the near future.
  • The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!
    5 Stars By Rigoberto Boler from Qatar - 2018.12.05 13:53
    It is a very good, very rare business partners, looking forward to the next more perfect cooperation!
    5 Stars By Eric from Sudan - 2018.06.09 12:42

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