Combined PVRV & Flame Arresters
A single unit combining pressure/vacuum relief with flame arresting for compact, cost-effective tank protection.
Manufactured in Vadodara, Gujarat, India by Pressure and Flow Control Industries since 1975.
Overview
Where space, weight, or installed cost is a constraint, a combined unit integrates a breather valve and a flame arrester into a single housing. It delivers both protections — pressure/vacuum relief and flame propagation resistance — through one nozzle connection instead of two separate in-line devices.
How it works
Vapor first passes through the PVRV pallet assembly for pressure/vacuum relief, then through an integrated arrester element before reaching atmosphere (or the reverse path for flame protection on inflow), so both functions are satisfied without stacking two full-size devices on the nozzle.
Applications
- Tank farms with limited nozzle or roof space
- Retrofits replacing separate PVRV + arrester setups
- New tank designs optimizing installed cost