Hot-selling Pressure Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy

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Our improvement depends on the superior equipment, excellent talents and continuously strengthened technology forces for Vacuum Equipment , Liquid Nitrogen Safety Valve , Vacuum Systems , We would like to take this opportunity to establish long-term business relationships with clients from all over the world.
Hot-selling Pressure 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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Hot-selling Pressure Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy detail pictures

Hot-selling Pressure Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy detail pictures


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Gaining client pleasure is our company's aim without end. We are going to make excellent efforts to create new and top-quality goods, meet your special requirements and provide you with pre-sale, on-sale and after-sale companies for Hot-selling Pressure Vacuum Vent Valve - Vacuum Insulated Check Valve – Holy , The product will supply to all over the world, such as: Netherlands, Cape Town, Zurich, You can always find the products you need in our company! Welcome to inquire us about our product and anything we know and we can help in auto spare parts. We are looking forward to work with you for a win-win situation.
  • The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Alan from Riyadh - 2018.09.16 11:31
    Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
    5 Stars By Henry from Riyadh - 2017.06.22 12:49