Cryogenic Check Valve Type 05412 With Braze Copper End
TECHNICAL DESCRIPTION
Type 05412 – Check valves
Cryogenic check valves, PN50
· bronze body and cover · with spring, minimum working pressure 0.1 bar · cleaned and degreased for oxygen operation
Art. No. 05412.X.0008
with soldered copper ends for welding according to DIN EN 12449.
WORKING FLUID / MEDIUM
Approved for gases, vapors and liquefied cryogenic gases and LNG.
Dimensions:DN 10 – 50
The CRYOGENIC CHECK VALVE TYPE 05412 WITH BRAZE COPPER END is engineered for superior performance in extreme low-temperature environments. This valve ensures unidirectional flow control, preventing backflow and safeguarding your cryogenic systems from pressure surges and contamination. Its robust construction and specialized design make it an essential component for industries such as LNG processing, aerospace, medical gas systems, and laboratory applications where reliability and safety are paramount.Key features of this valve include:Braze copper ends for secure, leak-proof connections compatible with cryogenic piping systemsDesigned to operate efficiently at temperatures as low as -196°C (-320°F)Constructed from high-quality materials resistant to thermal contraction and embrittlementMaintenance-free operation with a tight seal to minimize fluid loss and energy wasteComplies with industry standards for cryogenic valve performance and safetyIdeal for integration into liquid nitrogen, oxygen, argon, or helium systems, this check valve offers durability and long service life. Its compact design allows for easy installation in confined spaces, while the brazed copper ends ensure a permanent, high-strength joint that withstands thermal cycling. Trust this valve for critical applications where failure is not an option.

Materials
| No. | Materials | DIN EN | ASTM |
|---|---|---|---|
| 1 | Body | bronze CC491K | B62 UNS C83600 |
| 2 | Saddle | Teflon PTFE / with graphite filling (25%) | |
| 3 | Valve | brass CW614N | B283 UNS C38500 |
| 4 | Spring | CW452K | B159 UNS C51900 |
| 5 | Lid gasket | Teflon PTFE | |
| 6 | Bolts | 1.4301/A2 A 194 B8 | |
| 7 | Lid | CC493K | B505 UNS C93200 |
| 8 | Copper ends | CW024A | B 152 UNS C12200 |
Features
| SPECIFICATION | |
|---|---|
| Type 05412 | cryogenic check valve PN 50 |
| Connection ends | on a weld |
| Construction length | factory standard |
| Attaching the lid | flanged |
| Execution | straight |
| Joining | on a weld |
| Drive | independently |
| Working temp. [°C], | -196°C to +120°C |
| DN | Size Code (.X.) | Construction Length (FF) | Height (H) | Outer Pipe Diameter Ø (RA) | Wall Thickness (a) | Weight (approx. kg) | Kvs Value (m³/h) | Cv Value (gal/min) |
|---|---|---|---|---|---|---|---|---|
| 10 | 1012 | 360 | 71 | 12.0 | 1.0 | 0.8 | 2.2 | 2.6 |
| 15 | 1515 | 385 | 71 | 15.0 | 1.5 | 1.1 | 4.3 | 5.0 |
| 15 | 1518 | 385 | 71 | 18.0 | 1.5 | 1.1 | 4.3 | 5.0 |
| 20 | 2022 | 385 | 72 | 22.0 | 1.5 | 1.4 | 6.7 | 7.8 |
| 25 | 2528 | 415 | 75 | 28.0 | 1.5 | 2.0 | 11.5 | 13.4 |
| 32 | 3235 | 415 | 87 | 35.0 | 1.5 | 2.8 | 12.1 | 14.1 |
| 40 | 4042 | 420 | 95 | 42.0 | 1.5 | 4.5 | 22.6 | 26.3 |
| 50 | 5054 | 460 | 95 | 54.0 | 2.0 | 6.5 | 37.1 | 43.2 |











