Situation:
Recommended correction - Rework solenoid valve connections to include seal at XP enclosure. LFMC will not contain explosion. On 2nd installation example, XP solenoid valve cannot be used to seal the adjacent enclosure. 501.15(A)(1)(1) and (B)(1).
Comments from the group are appreciated.
Thanks,
BobG
- Class I, Div. 2 Area
- No evaluation done for non-incendive system, components , etc. Assume not non-incendive.
- Automated Valve, limit switches, XP enclosure, non-hermetically sealed contacts, enclosure says install seal within 18"
- Automated Valve, solenoid valve connected to limit switch XP enclosure with LFMC, no seal at XP enclosure.
- 2nd installation, Automated Valve, solenoid valve connected to limit switch XP enclosure with close nipple, no seal at XP enclosure.
- See attached pictures. It appears field has installed with consideration to limit vapor, not contain explosion. If the switches were hermetically sealed, there would be no issue with these installs.
Recommended correction - Rework solenoid valve connections to include seal at XP enclosure. LFMC will not contain explosion. On 2nd installation example, XP solenoid valve cannot be used to seal the adjacent enclosure. 501.15(A)(1)(1) and (B)(1).
Comments from the group are appreciated.
Thanks,
BobG