Two-way Relief Valve

Description

Two-Way Relief Valve is designed with distinct and separate settings for both vacuum and pressure relief, making it applicable for both transit and storage containers, electronic and electro-optics equipment. Tamper-proof, these valves feature standard settings ranging between 0.5 psi to 3.0 psi pressure. Most valves are equipped with a desiccant cartridge, allowing the adsorbing of moisture before entering a piece of equipment or container. These relief valves do not require any maintenance, and most of them come with a manual release push button to equalise pressure or vacuum differentials in order to open the container or equipment.

Panel Mounting Double Differential Relief Valve

This low-cost, two-way pressure and vacuum relief are suitable for transit cases and other similar applications up to 4 cubic feet in volume. With separate and distinct settings for both pressure and vacuum relief, it features a flow rate of 0.5 scfm when at a pressure of 1.5 psi to 2.0 above the value settings. The standard settings range between 0.5 [sid to 2.0 psi pressure. The Panel Mounting Double Differential Relief Valve does not require any field maintenance due to the corrosion-resistant material used throughout the device. Featuring valve seals made of silicone rubber, each valve is supplied with an o-ring and nut for small cases that require a low profile value. Its manual release push button is also capable of equalising pressure or vacuum differentials to open the container.

0.75 x 16 UNF Double Differential Relief Valve (With Weather Shield)

Featuring a weather shield, this valve is designed to provide a low-cost, two-way pressure and vacuum relief, suitable for transit cases and other similar applications up to 4 cubic feet in volume. Field maintenance is not required for this valve due to its corrosion-resistant material used throughout the device. It is also equipped with valves made of silicone rubber; each valve is supplied with an o-ring and nut for small cases that require a low profile value. 0.75 x 16 UNF Double Differential Relief Valve (With Weather Shield) features a separate and distinct setting for both vacuum and pressure relief valve. This breather valve also features a conversion coated housing, which allows the use of a conductive o-ring for minimal RFI Shielding, For a higher energy RFI Shielding, please contact us for more information.

1.00-20 UNEF Thread Double Differential Relief Valve

This breather valve is ideally used for transit cases or other similar applications of up to 33 cubic feet in volume. Designed to be low cost, it features a high flow valve of 4.0 scfm as compared to the Panel Mounting Double Differential Relief Valve.
The valve is lightweight, rugged and tamper-proof. In addition, it does not require any maintenance as corrosion-resistant materials are used throughout, and it also features a silicone rubber seal. Just like the other breather valves, it is incorporated with a manual release push button which is used to equalise residual pressure or vacuum differentials for the opening of the container. The valve is also available in settings ranging between 0.5 psi to 5.0 psi.

3/4 “ Thread Double Differential Relief Valve

Consist of a separate and distinct setting for both pressure and vacuum relief, this breather valve features a flow rate that ranges from 1.5 to 4.0 scfm at 1.5 psi above the valve reseal setting. It is ideally used for containers and similar applications up to 33 cubic feet in volume and is available in standard settings ranging from 0.25 psid to 3.0 psid reseal pressure – the lower the setting, the higher the flow rate. Made of corrosion-resistant material throughout and silicone rubber for the valve seal, however, the spherical valve seat is Teflon coated for easy “break-away” action even after prolonged storage. The Breather Valve is tamper-proof and does not require field maintenance. The breather valve comes with a manual release push button that is used to equalise the pressure or vacuum differentials, in order to allow easy opening of the container. The button is recessed in the cover to protect it from damage, and prevent the adjacent container from pressing the button accident, causing it to remain open. Below the button is equipped with a unique feature, which is a light-duty spring that separates the button from the vacuum stem and must be overcome before the button opens the valve.

The valves are also available in two types: “Cracking” and “Reseal”. Cracking Valves are rated by cracking pressure and the flow rate at 1.5 psi above the cracking pressure, while Reseal Valves are rated by the reseal pressure and the flow rate at 1.5 psi above the reseal pressure. Gasket, washer and hex nut are provided with each valve. The weldable nut is available for use as a threaded boss, or the valve may be used with our mounting Flanges. RFI/ EMI shielding is also available.

*Cracking pressure: Pressure at which the valve has opened enough to flow 1 cubic centimetre per minute.
*Reseal pressure: Pressure at which the valve is guaranteed to close after it has cracked open.

2.00-18 UNS Thread Double Differential Relief Valve

Featuring a separate and distinct setting for both vacuum and pressure relief, the Thread Double Differential Relief Valve features a flow rate of 10.0 to 25.0 scfm at 1.5 psi above the valve setting and a standard-setting range from 0.5 psi to 5.0 psi pressure. This makes it suitable for large containers and similar applications up to 208 cubic feet in volume. The breather valve comes with a manual release push button that is used to equalise the pressure or vacuum differentials, to allow easy opening of the container. The button is recessed in the cover to protect it from damage, and prevent the adjacent container from pressing the button accident, causing it to remain open. Below the button is equipped with a unique feature, which is a light-duty spring that separates the button from the vacuum stem and must be overcome before the button opens the valve.

The valves are also available in two types: “Cracking” and “Reseal”. Cracking Valves are rated by cracking pressure and the flow rate at 1.5 psi above the cracking pressure, while Reseal Valves are rated by the reseal pressure and the flow rate at 1.5 psi above the reseal pressure. Gasket, washer and hex nut are provided with each valve. The weldable nut is available for use as a threaded boss, or the valve may be used with our mounting Flanges. RFI/ EMI shielding is also available.
The valve is made of corrosion-resistant material covered throughout with a silicone rubber valve seal. Adding on the spherical valve seat is Teflon coated to enable easy “break-away” action even after prolonged storage. It is also tamper-proof and does not require field maintenance.
*Cracking pressure: Pressure at which the valve has opened enough to flow 1 cubic centimetre per minute.
*Reseal pressure: Pressure at which the valve is guaranteed to close after it has cracked open.

M14 Thread Double Differential Relief Valve (With weather shield)

Made from Anodised Aluminium, the M14 Thread Double Differential Relief Valve is designed to protect enclosures from the imbalance of internal and external pressure. The weather shield provides additional protection and can be supplied with R.F. Screening Continuity whenever required.

M30 Thread Pressure Relief Valve (Polycarbonate)

Designed to protect enclosures from the imbalance of internal and external pressure, this valve is made from a mixture of polycarbonate and stainless steel. It requires a 30.5 diameter hole and is fitted with a manual override button to ensure safe equipment opening.

Unthreaded FDA Approved Two Way Relief Valve

FDA Approved, the Two Way Relief Valve can be used in both food and medical devices such as releasing the steam build up in cookers or equalise pressure in medical storage containers.

M25 Thread Stainless Steel Relief Valve

The Stainless Steel Relief Valve is a two-way pressure relief valve which can be used together with a desiccator with the help of M20 Internal Thread on the rear. This valve features a key slot in the front and a diamond knurl cut body to help with easy fitting. The valve is available in a wide range of pressure settings, contact us today for more information!

Two Way Pressure Relief Valve – 3.4” – 12 UN

Made from Anodised Aluminium, the Two Way Pressure Relief Valve is designed to protect enclosures from the imbalance of internal and external pressure. It features a square drive to allow it to be torque to 60 lb/ in.

½” 20 UNF Thread

Made from Anodised Aluminium, the ½” 20 UNF Thread is designed to protect enclosures from the imbalance of internal and external pressure. The valve is equipped with a weather shield for extra protection and can be supplied with R.F. Screening Continuity when required.

Thread: ½” 20 UNF

Thread: ½” 20 UNF is specially designed for both transit and storage containers as well as electro-optic equipment. Tamper-proof and does not require any maintenance, the device has a 0.5 psi – 3.0 psi pressure. A highly absorbent desiccant is also incorporated to remove moisture from the air that enters the container or storage, and also, it is easy to use and install.

Key Features

Product Features

  • Specially designed for both transit and storage containers and electronic and electro optic equipments
  • Tamper-proof and no maintenance needed
  • 0.5 psid – 03.0 psid reseal pressure
  • A highly absorbent desiccant removes moisture from the air that enter the container or storage
  • Easy to install and use