ORV

Overpressure release valve - passive element with quick response

Automatic operation
Temperature range -20 ÷ 80°C
Zinc-magnesium coated frame
Pre-set pressure difference

Passive element

ORV is a passive element with a quick response. It opens automatically at design pressure difference.

Range of applications

The ORV over pressure release valve has a range of applications such as in the pharmaceutical or chemicals industry.

Robust construction

The frame or ORV is made from zinc-magnesium-coated steel. The blade is made of AIMg3.

On request

Non-standard sizes and pressure differences available on request

The ORV is an overpressure relief vent. It has been designed to open automatically at design pressure difference to give a free flow path from a pressurised space to a space of lower pressure, or to the open air. It has been developed to maintain the adjusted pressure difference between two rooms or between a room and the exterior. By doing so it can prevent contamination of the inside or exterior with chemical or biological polluted air.

Use cases of the ORV include maintenance of the pressure difference between a clean room and a soiled zone in laundry, pharmaceutical and electronic industries. It can also pressurise an evacuation in the event of a fire for maintenance of a smoke-free zone.

The ORV frame is manufactured from zinc-magnesium coated steel. The blades are manufactured of AIMg3. The number of blades used in the ORV will vary depending on height. It has an operating temperature of -20 - 80°C. It is suitable for installation according to EN 12101-6.