Meca-Inox PY4CY-Fire Safe
For airtight under extreme condition
Downloads
Datasheet PY4 CY FS Fire safe
English 374 KB ver. 15.0
Declaration EN ISO 10497 PY4-CY FS (Fire Safe Test)
English 838 KB ver. LYO 1400175/1
Description
The PY4CY FS ball valve is a fire safe version (according to EN ISO 10497) specialized for cryogenic conditions. Even under the most extreme conditions the PY4CY shut-off valves provide a reliable sealing to the outside. The PY4CY fire safe differs from the PY4CY to make it more adapted to LNG : - Its shorter spacer. Which size varies less in case of extreme temperature. Leading to less risk of leakage. -The body seals are in graphite instead of PTFE -The sockets design make it more damp-proof.
Fire Safe Test
The valve was subjected to a fire test during 30 minutes at 2 bar. During the test the average temperature of the calorimeters was higher than 650°C. After the test, the valve was checked and repressurised. The valve body was found airtight. It is used for liquefied gases, such as the LNG-market.
| Sizes | DN 8 tot DN 100 |
| Max. pressure* | 100 bar |
| Temp. range | -196°C to +200°C |
| Type of connections | Butt weld, Socket weld, Thread (NPT and BSP), Flanged |
| Weld connections | ISO, ASME, DIN, SMS, S10, S40 |
| Material | - Body, ball, connections: 1.4409 (316L) - Seats: TF 3215 (PTFE + Carbon) |
| Operation | manual |
| Certificates | EN ISO 10497 (Fire Safe Test), 3.1, CE (PED), NEN-EN 1626:2008 |
* Max. pressure is depending on the temperature and DN size. See the Pressure/Temperature diagrams for more information.
Options:
- Other materials on request
- Client specific connections
