Protectoseal Series No. 7800 Emergency Pressure Vents are designed to provide emergency relief capacity beyond that furnished by the operating vent on tanks. The Series No. 7800 vents do not provide vacuum relief. Vacuum relief must be supplied by independent operating vents (See Protectoseal Series No. 830, Series No. 8540H, Series No. 6240, Series No. 18540, or Series No. 16240).
Under normal operating conditions, the vent pallet assembly is closed providing an effective vapor seal. In the event of an emergency (fire involvement of the tank), the pallet lifts in response to the increased pressure in the tank’s vapor space. Vapor is expelled, thereby protecting the tank from dangerous over-pressurization. The pallet assembly automatically closes and reseals when the pressure is reduced.
- Sizes 2″ (DN 50) through 24″ (DN 600)
- Vents directly into the atmosphere
- Settings achieved by weight loading
- Higher pressure settings available
- ProFlow® Sizing/Selection Software
- Patented, FEP Film “Air-Cushioned Seating”
- Low-leak pallet design – certified test reports
- Non-metallic (Thermoplastic Resin & FRP) construction available
- Design & lightweight permit easy handling
- Conforms with the latest ATEX Directive and ISO 16852