Send Message
SiChuan Liangchuan Mechanical Equipment Co.,Ltd
SiChuan Liangchuan Mechanical Equipment Co.,Ltd

SiChuan Liangchuan Mechanical Equipment Co.,Ltd

Home ProductsCryogenic Safety Valve

Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve

Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve

  • Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve
Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve
Product Details:
Place of Origin: CHINA
Brand Name: CNLN
Certification: CE/ISO
Model Number: safety valve
Payment & Shipping Terms:
Minimum Order Quantity: 1 pcs
Price: USD83-199 per pc
Packaging Details: Inner package:plastic bag sealed package Outer package:carton package or wooden case package The lettering, nameplate, certificate for valves are available
Delivery Time: 5-8 work days
Payment Terms: T/T
Supply Ability: 3000pcs per month
Contact Now
Detailed Product Description
Power: Manual Material: Stainless Steel
Valve Color: Customer Request Pressure: PN25
Size: DN25 OEM: Yes
High Light:

Micro Opening Cryogenic Safety Valve


Cryogenic Safety Valve DN25


DN25 Cryogenic Safety Relief Valve

Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve


Product Description

Micro-opening safety valve refers to a type of safety valve with a relatively small opening height and a relatively small discharge volume. Specifically, the specified opening height h of the valve disc is between d1 / 40 to d2 / 20 (d1 is the diameter of the throat of the valve seat). There are two types of valve sealing surfaces: flat and conical. Their discharge areas are calculated according to the area of the cylindrical surface or the cone curtain formed between the valve disc and the valve seat. The advantage is that the structure is simple, and manufacturing, maintenance and test adjustment are relatively convenient. It is suitable for occasions with small discharge, large back pressure and stable system pressure.


This type of safety valve is mainly used for the safety discharge system of cryogenic liquid storage and transportation equipment. It has the characteristics of sensitive switching and reliable sealing, and is especially suitable for small volume equipment.

Model: DA21Y 

Caliber: DN10-40

Media: air, oxygen, nitrogen, inert gas, carbon dioxide

Pressure: 1.6 ~ 2.5MPa

Applicable temperature: -196 ℃ ~ + 40 ℃

Component material: copper, stainless steel
Applicable industries: urban construction, chemical industry, metallurgy, petroleum, pharmaceutical, food, beverage, environmental protection



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.


Product Description

Micro Opening Cryogenic Safety Valve DN25 Safety Relief Valve 0

Valve Type:safety valve

Connection Type: screw/thread

Nominal Diameter:DN15~25mm

Nominal Pressure:PN25

Material: Valve Body:CF8;
Valve Disc:06Cr19Ni10+PCTFE;

Valve Seat:05Cr19Ni10;

Seal material:PTFE;

Suitable Medium:O2,N2,Ar,LNG,LCO2,etc

Suitable Temparature:(-80℃~+120℃)

Design and Manufacture:Conform to GB/T24925-2010

Testing:Conform to GB/T13927-2008

Valve Lifetime:Specified according to usage frequency

and installation location

Lead Time:Customized valves are usually 30~45 days; Stock valves are usually within 5 days.




Valve Specification



Product Code
































Company Information

Sichuan Liangchuan mechanical equipment Co., LTD Co., Ltd. is a profession production of stainless steel valve, union development, production, sales and service of the valve business. Through unremitting efforts, our product sales cover most of northern China, such as Henan, Hebei, Shandong, Beijing, etc. won the majority of customers trust and praise, fame grow with each passing day.


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.



warehouse (5).jpg






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. Do Liangchuan products come with a warranty ?
A. Yes. That's why we offer 3-year product life 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

Contact Details
SiChuan Liangchuan Mechanical Equipment Co.,Ltd

Contact Person: Doris

Tel: 86+15008455973

Send your inquiry directly to us
SiChuan Liangchuan Mechanical Equipment Co.,Ltd
No.789,Baiyun Road,East Industrial Park,Xindu District,Chengdu City,Sichuan Province P.C. 610500
Mobile Site Privacy Policy | China Good Quality Cryogenic Globe Valve Supplier. © 2020 - 2024 All Rights Reserved.