Manual Relief Valves

Description

Formulated to be used in compact containers or cases, manual relief valves provide diverse ways to equalise pressure or vacuum differentials before opening the containers. The relief valves can be installed with no difficulty through a single hole in the wall of the case. It comes complete with all attaching hardware. Some of the models are equipped with the safety wire protection feature to discourage unauthorised opening of the valves. The advisable torque valve for installation is 30lbs/ins.

*There exists no visual indication of whether the manual valves are open or closed. Users should undertake careful consideration before selecting the valves due to the possible outcomes from consistent exposure to the outside ambient if left open; potential damage to the container if left closed.

Manual Relief Valve (Exhaust Port)

The Manual Relief Valve is an exhaust port that can act as an inlet connection on containers. It has a physical override button to unlock the port. The self-sealing valve enables air to flow into the contact without flowing out.

0.466-32 UNS Thread Breather Valve

This breather valve, being black anodised, has a confined knurled twist knob for manual operation. It can be utilised in think wall containers. It can be mounted through a 0.50 inch (13mm) diameter hole. This unit is completely immersion proof as it is IP67 rated and meets MS18014-1.

0.200-20 UNF Thread Breather Valve

This “push-to-open” relief valve can be set up through a 0.51 inch (13 mm diameter hole). The pressure can be equalised due to the side venting design even when the button is depressed by users wearing arctic gloves. At vacuum pressures above 6.0 psid, this unit may open automatically.

0.2000-20 UNF Thread Breather Valve

This middle-sized “turn-to-open” manual relief valve is equipped with a recessed captive screw. This needs to be rotated at least once with a screwdriver to open the valve. Apart from its safety wire characteristics, these valves can be set up through a 0.51 inch (13mm) diameter hole.

Key Features

Product Features

  • Easy to install
  • Perfect product that can be used with small containers
  • Tamperproof

Selection Guide

Selection Guide

Manual Relief Valve (Exhaust Port)

  • A manual override button to open the port 
  • Can be used as an inlet connection on containers. 
  • self-sealing valve allows air to enter the container only

0.466-32 UNS Thread Breather Valve

  • Black anodized
  • A captive knurled twist knob for hand operation and can be used in thin wall containers 
  • Fully immersion proof as this unit is IP67 rated
  • Can be mounted through a 0.50 inch (13mm) diameter hole

0.200-20 UNF Thread Breather Valve

  •  A “push-to-open” relief valve
  • Has a side venting design enable pressure equalization 
  • Open automatically at vacuum pressures above 6.0 psid. 
  • Can be mounted through a 0.50 inch (13mm) diameter hole

0.2000-20 UNF Thread Breather Valve

  • A medium-sized “turn-to-open” manual relief valve 
  • Equipped with a recessed captive screw which can be opened with a screwdriver or coin
  • Can be mounted through a 0.51 inch (13 mm) diameter hole. 

Manual Relief Valves Brochure

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