Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy

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Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off 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 tanks, dewars and coldboxes 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 Shut-off / Stop Valve, namely Vacuum Jacketed Shut-off Valve, is the most widely used for VI valve series in the VI Piping and VI Hose System. It is responsible for controlling the opening and closing of main and branch pipelines. Cooperate with other products of the VI valve series to achieve more functions.

In the vacuum jacketed piping system, the most cold loss is from the cryogenic valve on the pipeline. Because there is no vacuum insulation but conventional insulation, the cold loss capacity of a cryogenic valve is far more than that of a vacuum jacketed piping of dozens of meters. So there are often customers who chose the vacuum jacketed piping, but the cryogenic valves on both ends of the pipeline choose the conventional insulation, which still leads to huge cold losses.

The VI Shut-off Valve, simply speaking, is put a vacuum jacket on the cryogenic valve, and with its ingenious structure it achieves the minimum cold loss. In the manufacturing plant, VI Shut-off Valve and VI Pipe or Hose are prefabricated into one pipeline, and there is no need for installation and insulated treatment on site. For maintenance, the seal unit of VI Shut-off Valve can be replaced easily without damaging its vacuum chamber.

The VI Shut-off Valve has a variety of connectors and couplings to meet different situations. At the same time, the connector and coupling can be customized according to customer requirements.

HL accepts the cryogenic valve brand designated by customers, and then makes vacuum insulated valves by HL. Some brands and models of valves may not be able to be made into vacuum insulated valves.

About VI valve series more detailed and personalized questions, please contact HL cryogenic equipment directly, we will serve you wholeheartedly!

Parameter Information

Model HLVS000 Series
Name Vacuum Insulated Shut-off Valve
Nominal Diameter DN15 ~ DN150 (1/2″ ~ 6″)
Design Pressure ≤40bar (4.0MPa)
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

HLVS000 Series, 000 represents the nominal diameter, such as 025 is DN25 1″ and 100 is DN100 4″.


Product detail pictures:

Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy detail pictures

Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy detail pictures

Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy detail pictures

Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy detail pictures


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Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support for Chinese Professional Safety Relief Valve - Vacuum Insulated Shut-off Valve – Holy , The product will supply to all over the world, such as: Qatar, Adelaide, America, Customer satisfaction is our first goal. Our mission is to pursue the superlative quality, making continual progress. We sincerely welcome you to make progress hand in hand with us, and construct a prosperous future together.
  • This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Jack from Austria - 2018.06.12 16:22
    Perfect services, quality products and competitive prices, we have work many times, every time is delighted, wish continue to maintain!
    5 Stars By trameka milhouse from Guyana - 2018.06.19 10:42

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