Designed for electronic and electro-optics equipment applications, inward relief valves have vacuum relief settings ranging from 0.5 psid to 5.0 psid pressure.

The valves are tamper-proof and require minimal field maintenance. Attach a desiccant cartridge to adsorb moist air entering equipment or container packaging. All two-way relief valves can be used for inward or outward-only pressure settings.

  • Tamper-proof
  • Vacuum relief only with settings ranging from 0.5 psid to 5 psid
  • Equalises the air pressure preventing over or under pressurisation

Push-Fit Inward Relief Valve 

The small push-fit aluminium valve protects equipment from vacuum damage.

M24 Thread Inward Relief Valve 

The panel mounting valve has a back nut and an alochrome thread for R.F. Screening Continuity with a range of pressure settings available.

1” BSP Thread Inward Relief Valve 

Stainless steel and available in a range of settings, the valve can be easily installed with a socket or spanner and can be mounted in reverse to act as an outward relief valve. Use the valve on floor-mounted tank vent dryers to give additional protection to prevent blockages.

1” BSP Thread Inward Relief Valve

The valve can also be mounted in reverse positions to act as an outward relief valve and can be fitted to be used with tank vent dryers to protect and prevent blockages. The BSP thread can easily be mounted into standard pipe fittings.

1/2” BSP Thread Inward Relief Valve 

The valve can be mounted in reverse positions as an outward relief valve and fitted on wall-mounted tank vent dryers for additional protection to prevent blockages. The BSP thread indicates they can easily be mounted into standard pipe fittings.

1.5” BSP Thread Inward Relief Valve 

The inward relief valve can be mounted in reverse positions to act as an outward relief valve. The BSP thread can easily be mounted into standard pipe fittings. Used with tank vent dryers, the valves give additional protection to prevent blockages.

M24 Thread Inward Relief Valve 

The large valve has a range of settings that can be easily installed with a square drive and is printed with the recommended installation torque figure. This model can also be mounted in reverse as an outward relief valve. Used on pressure-sensitive equipment such as electronics, containers, and optics, these valves can protect them from vacuum damage due to air transportation or atmospheric changes.

1.5” BSP Double Thread Inward Relief Valve (Stainless Steel) 

The valve has a large hexagonal head and a double thread – one side is tapered. The other is parallel, allowing it to be installed inline or connected to the exhaust or intake. This unit can be easily installed with a socket or spanner. It can be mounted in a reverse position to act as Outward Relief Valve. Commonly used with our Tank Vent Dryers, the valves give additional protection to prevent blockages. The BSP thread indicates they can easily be mounted into standard pipe fittings.

Inward Relief Valve Product Brochure: Download