PN4.0MPa DN15 Fall Lift Safety Valve for LN2 Tank with -80℃ to +120℃ Temperature Range and 0.92-2.42MPa Set Pressure
PN4.0MPa DN15 Fall Lift Safety Valve designed specifically for LN2 (liquid nitrogen) tanks and other cryogenic applications. This spring direct acting full open safety valve ensures reliable pressure relief in industrial gas handling systems.
| Parameter | Specification |
|---|---|
| Valve Type | Safety Valve |
| Connection Type | Screw/Thread |
| Nominal Diameter | DN15-25mm |
| Nominal Pressure | PN4.0MPa |
| Set Pressure | 0.92MPa, 1.76MPa, 2.42MPa |
| Material Composition | Valve Body: CF8; Valve Disc: 06Cr19Ni10; Valve Seat: 05Cr19Ni10; Seal: PTFE |
| Suitable Medium | O2, N2, Ar, LNG, LCO2, etc. |
| Temperature Range | -80℃ to +120℃ |
| Design Standard | GB/T24925-2010 |
| Testing Standard | GB/T13927-2008 |
| Valve Lifetime | Specified according to usage frequency and installation location |
| Lead Time | Customized: 30-45 days; Stock: within 5 days |
- Body and Seat: Stainless Steel
- Spring: Stainless Steel
- Disc Seal: Reinforced PTFE
| Product Code | H | H1 | L | M1 | M2 | D0 | D1 | D2 |
|---|---|---|---|---|---|---|---|---|
| C158DJ15 | 179 | 62 | 47 | M45×2 | M36×2 | 36 | 15 | 32 |
| C158DJ25 | 159 | 51 | 46 | M30×1.5 | M30×1.5 | 22 | 12 | 26 |
- Ensure pipes are thoroughly cleaned before installation
- Install with flow direction arrow aligned with fluid flow
- Maintain degreased condition during storage and installation
- Complete pipeline flushing to remove all debris
- Perform degreasing for oil-free system requirements
- Operate valves slowly during opening and closing
- Replace worn disc, seat, and stem components promptly
- Always use new gaskets and sealing materials during maintenance
For custom specifications, provide detailed requirements including:
- Structure length specifications
- Connection type requirements
- Nominal diameter specifications
- Medium type and temperature/pressure ranges
- Testing and inspection standards
A. Yes. Liangchuan requires proof of trademark registration in order to print or emboss your trademark onto the product or packaging.
A. Yes. We offer 3-year product life guarantee and a generous 1-year warranty on all purchases that begins with the bill of lading.
A. Usually we don't offer free samples and express fees are required. The sample cost can be deducted from your first large order.
A. Our MOQ is one (1) piece/set.
A. Yes, we are the manufacturer with over 8 years of experience.
Ultra-low temperature valves have become increasingly essential in petrochemical, air separation, natural gas, and related industries. These valves handle cryogenic media that are often toxic, flammable, explosive, and highly permeable, requiring specialized materials and design considerations to ensure reliable operation at both cryogenic and ambient temperatures. The extended stem design minimizes external heat transfer and prevents frosting or freezing of packing components.
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