Complies with Australian Standard AS2809 and with USA standard NFPA 385 (1990).
2 Stage opening
For safety the hatch has a two-stage opening and also acts as an emergency vent.
Supplied as a complete assembly.
Pressure and Capacity
For emergency vent opening pressure & capacity refer to individual data sheets for Emergency Vent configurations.
Coaming and Seals
The Weld-in coaming is available in aluminium, mild steel or stainless steel.
Wide variety of seals available to suit various applications & products.
Optional pressure & vacuum vent can be incorporated. For opening pressure & capacity see PVV104 series datasheet.
PVV104 vent is standard for Australia & NZ.
PVV104U is standard for most other countries.