The ventilation blast valve is used as ventilation valve of Civil Defense and Military shelters. These are specially designed to be used for protection of vent pipes of sanitary systems and fuel and water tanks.

Specification

The ventilation blast valve comprises a steel pressure disk mounted on a stainless-steel spindle within cast steel valve body and casing.

The valve pressure disk is held open by a spindle mounted spring and closes in response to the blast load.

Manufacturer of exhaust blast valve is European EMC Products Ltd, UK.

The exhaust blast valve complies with all known UK, NATO and international security and performance standards

The valve is designed and tested to withstand multiple long duration blast loads having peak reflected overpressure of 19 bar while retaining its full functional ability.

The valve is shock tested in directions of the three main axis with a mechanical shock of installation base having an acceleration of 30 g.

The ventilation blast valve is designed to function within operating temperature range of -20 … +80 ºC.

Ease of installation

Installation is straightforward:

Prior to casting concrete install the wall sleeve in the formwork by wiring to re-enforcement. After forms are removed bolt the valve to the wall sleeve.