I. Overview:

This type of special safety valve is mainly used in liquid oxygen (liquid nitrogen, liquid argon) and other low-temperature liquid media systems. It has the characteristics of free start, reliable sealing, and stable take-off pressure.

2. Specifications:

Nominal diameter: DN15- 25mm

Nominal pressure: PN 2.5MPa

Applicable medium: LO2, LN2, LAR, LNG, etc.

Applicable temperature: -196 ℃-+ 80 ℃

3. Material:

Body and seat: copper / stainless steel

Valve top, stem, spring: stainless steel

Customer Notice:

1. If customers have special requirements for products, they must provide the following instructions in the order contract:
a. Structure length
b. Connection Type;
c. Nominal diameter
d. Product use medium and temperature and pressure range;
e. Testing, inspection standards and other requirements.

2. The factory can configure various driving devices according to customer specific requirements.

3. If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract on the condition that the supply and demand sides understand and agree.

4. For futures and ordering customers, please call the letter to tell the valve model, specifications, quantity, delivery time and place in detail. And advance payment of 30% of the total contract amount, the supplier is ready for production.

Notes When Use
1 . It should ensure that the pipe is blown clean before installation.

2 . When installing, make sure that the flow direction indicated by the arrow on the valve body should be consistent with the flow direction of the fluid.

3 . This valve has been degreased. Store and keep clean when installing.

4 . After the pipeline construction is completed, all the valves on the pipeline should be opened, and the residue in the pipeline should be thoroughly and thoroughly kept to ensure that the pipeline system is clean and free of debris.

5 . The installation system diagram with the oil-free requirements should be degreased.

6 . Slowly open and close during use.

7 . If the precision parts such as the valve disc, valve seat and valve stem are worn or damaged, it must be repaired and replaced in time.

8 . For parts such as gaskets and sealing materials, replace them with new ones each time.