MECA-INOX-NL

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Meca-Inox PY4CY-Fire Safe

For airtight under extreme condition
Meca-Inox PY4-CY-Fire Safe Ball-valve
Meca-Inox PY4-CY-Fire Safe Ball-valve
Meca-Inox PY4-CY-Fire Safe Ball-valve
Meca-Inox PY4-CY-Fire Safe Ball-valve
Downloads

pdfDatasheet PY4 CY FS Fire safe
English 374 KB ver. 15.0

pdfDeclaration EN ISO 10497 PY4-CY FS (Fire Safe Test)
English 838 KB ver. LYO 1400175/1

Description

Group 90 1 Group 91 2 Group 92 Group 93 1

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 0°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