KITO · Breather Valves
Ritec partnerKITO VD/KG-PA-IIB3 pressure and vacuum relief valve with flame arrester
End-of-line pressure and vacuum relief valve with integrated deflagration flame arrester for explosion groups IIA1 to IIB3, DN50 to DN300, the standard vent for tanks with flammable liquids.
The VD/KG-PA-IIB3 is the valve KITO recommends for the normal in- and outbreathing of fixed-roof tanks holding flammable liquids. A deflagration-proof element in the housing stops a flame from the atmosphere, while the weight-loaded pressure and vacuum pallets keep the tank within its limits and minimise product losses.
The PA pallet design gives a high flow with little overpressure. A proximity switch signals valve lift and electrical heating prevents freezing of the pallets in winter.
Selection data we need
Tank volume and pump in/out rates, product and flash point, required pressure and vacuum settings, nominal size and connection standard, blanketing gas if any, and required accessories. We size with the KITO KISS program per ISO 28300 / API 2000.
Applications
- Fixed-roof tanks with flammable liquids (flash point below 60 °C)
- Solvent and fuel storage
- Tank farms and terminals


