Product specifications
Product type: Spring direct acting full open
Nominal pressure: 2.5MPa,4.0MPa
Applicable medium: LO2, LN2, LAr, LNG, LC2H4, etc.
Applicable temperature: -196 ～ + 80 ℃
Connection: Thread
Material of main parts
Body and seat: stainless steel
Spring: stainless steel
Disc Seal: Reinforced
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.
| 
| Valve Type: Cryogenic Fall Lift Safety Valve |
| Connection Type: screw/thread |
| Nominal Diameter:DN15~25mm |
| Nominal Pressure:PN4.0MPa |
| Set Pressure:0.92MPa,1.76 MPa,2.42 MPa |
| Material: Valve Body:CF8;
Valve Disc:06Cr19Ni10; 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. |
Installation Requirements of Cryogenic Fall Lift Safety Valve
When the fluid is a liquid, the valve stem of the cryogenic valve should be installed upwards to prevent some liquid remaining in the valve cavity after the valve is closed. The liquid vaporization causes abnormal pressure rise and the gate cannot be opened. Moreover, the valve stem of the cryogenic valve is longer, so attention should be paid to it during installation.
For low temperature gate valves with pressure relief holes, the direction of the pressure relief holes should be marked on the valve body, and the mark should not be covered by the cold insulation layer.
