Pneumatic low temperature ball valve is mainly used to output liquid low temperature media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., not only flammable and explosive, but also gasification when heating, and volume expansion hundreds of times during gasification . The material of the pneumatic low temperature ball valve is very important. If the material is not qualified, it will cause external leakage or internal leakage of the casing and sealing surface. The comprehensive mechanical properties, strength and rigidity of the components cannot meet the requirements for use or even break. Causes the LNG medium to leak and cause an explosion. Pneumatic low temperature ball valve undergoes special low temperature treatment. The rough parts are placed in the cooling medium for several hours (2-6 hours) to relieve stress, ensure the low temperature performance of the material, and ensure the finished size to prevent the valve from working at low temperatures. At the same time, leakage caused by deformation due to temperature changes.

Product specifications

Nominal pressure: 16.0MPa Nominal diameter: 10mm ～ 50mm

Applicable medium: LO2, LN2, LAr, LNG, LC2H4, etc.

Applicable temperature: -196 ～ + 80 ℃ Connection: SW,BW,RF

Media flow direction: flow from left to right of the valve

Material of main parts

Body, bonnet, stem : stainless steel

Sphere: stainless steel solid ball Filling: PTFE Seal: PTFE or PCTFE

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.

The company produced products are focus on the cryogenic valves, such as ball valve, cryogenic emergency cut-off valves, globe valve, gate valve, check valve, etc. Material: 321,304,304L,316,316L,WCB, etc. Driving mode: manual, pneumatic, electric, etc. Products are widely used in electricity, brewing, papermaking, medicine and other industries. Modern enterprise quality management, high quality professional technical team and advanced production and testing equipment, the company is steadily improving the quality of product upgrading of the strong pillar.

In the fierce competition in the market, we will, as always, increasing the strength of the enterprise scientific management, improve the technological content of new products, with excellent product quality and good after -sale service, welcome the new and old user presence, established a Long-term relationship.

Q. Are there any special requirements for OEM purchases?
A. Yes. Liangchuan requires proof of trademark registration in order to print or emboss your trademark onto the product or packaging.

Q. Does Liangchuan products have a warranty ?
A. Yes. That's why we offer 3-year quality guarantee, and a generous1 year warranty on all purchases that begins with the bill of loading.

Q. How can I get some samples?

A. Usually we don’t offer free sample and express fee are required, the sample cost can be deducted from your first large order.

Q. What's the MOQ of your products?

A. Our MOQ is one (1) piece/set.

Q. Are you a manufacturer with your own factory?

A. Yes, we are the manufacturer for more than 8 years