• DH-D8887 - Panel Mounting Double Differential Relief Valve

    The DH/D8887 Breather Valve was designed to meet the need for a low cost, two-way valve for use on transit cases and similar applications up to 4 cubic feet in volume. The valve has separate and distinct settings for both pressure and vacuum relief. It has a flow rate of 0.5 scfm at a pressure of 1.5 psi to 2.0 psi above the valve setting. Standard settings range from 0.5 psid to 3.0 psid reseal pressure, please contact us if this is not what you are looking for.

    The DH/D8887 Breather Valve is tamper-proof and requires no field maintenance. Corrosion-resistant materials are used throughout. The valve seal is made of silicone rubber. Each valve comes complete with a nut and o-ring, and is intended for small cases that require a low profile valve. A manual release push button is standard on all DH/D8887 valves. It is used to equalize pressure or vacuum differentials in order to open the container.

  • DH-D9314 - 0.75 x 16 UNF Double Differential Relief Valve

    The DH/D9314 Breather Valve, a weather shielded version of Brownell’s time tested DH/D8887 Breather Valve, was designed to meet the need for a weather shielded, low cost, two-way valve for use on transit cases and similar applications up to 4 cubic feet in volume. The valve has separate and distinct settings for both pressure and vacuum relief. It has a flow rate of 0.5 scfm at a pressure of 1.5 psi to 2.0 psi above the valve setting. Standard settings range from 0.5 psid to 3.0 psid reseal pressure.

    The DH/D9314 Breather Valve requires no field maintenance. Corrosion-resistant materials are used throughout. The valve seal is made of silicone rubber. Each valve comes complete with a nut and o-ring, and is intended for small cases that require a low profile valve.

    The conversion coated housing allows for use of a conductive o-ring for minimal RFI shielding. For higher energy RFI shielding, Brownell’s standard style RFI nuts are available.

  • DH-D9146 - 1.00 x 20 UNEF Thread Double Differential Relief Valve

    The DH/D9146 Breather Valve fills the need for a low cost, but higher flow valve than the DH/D8887 Breather Valve. The valve can be used on transit cases and similar applications up to 33 cubic feet in volume. It has a flow rate of 4.0 scfm and is available in settings from 0.5 psi to 5.0 psi.

    The valve is lightweight, rugged, tamper-proof and requires no field maintenance. Corrosion-resistant materials are used throughout. The valve seal is made of silicone rubber. A recessed manual release push button is standard on all Breather Valves Versions. It is used to equalize residual pressure or vacuum differentials in order to open the container. Please contact us for more information.

  • DH-D9132 - 3-4 Double Differential Relief Valve

    The DH/D9132 Breather Valve has separate and distinct settings for both pressure and vacuum relief. It has a flow rate that ranges from 1.5 to 4.0 scfm at 1.5 psi above the valve reseal setting, making it suitable for containers and similar applications up to 33 cubic feet in volume. Standard settings are available from 0.25 psid to 3.0 psid reseal pressure. The lower the setting, the higher the flow rate.

    The DH/D9132 Breather Valve is tamper-proof and requires no field maintenance. Corrosion-resistant materials are used throughout. The valve seal is made of silicone rubber. The spherical valve seat is Teflon coated for easy "break-away" action even after prolonged storage. The manual release push button is used to equalize the pressure or vacuum differentials in order to make opening the container easier. The button is recessed in the cover to protect it from damage and eliminate the possibility that an adjacent container might press the button and inadvertently cause the valve to remain open. A unique feature of the push button is a light duty spring under the cover, separating the button from the vacuum stem, which must be overcome before the button opens the valve.

    The DH/D9132 valve is offered in two types: “Cracking” and “Reseal”. Cracking valves are rated by cracking pressure (the pressure at which the valve has opened enough to flow 1 cubic centimeter per minute) and the flow rate at 1.5 psi above the cracking pressure. Reseal valves are rated by reseal pressure (the pressure by which the valve is guaranteed to close after it has cracked open) and the flow rate at 1.5 psi above the reseal pressure.

    Gasket, washer and hex nut are provided with each valve. A 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.

  • DH-D9215 – 2.00 x 18 UNS Thread Double Differential Relief Valve

    The TA770-R Breather Valve has separate and distinct settings for both pressure and vacuum relief. It has a flow rate of 10.0 to 25.0 scfm at 1.5 psi above the valve setting, making it suitable for large containers and similar applications up to 208 cubic feet in volume. Standard settings range from 0.5 psid to 5.0 psid reseal pressure. The lower the setting, the higher the flow rate.

    The TA770 Breather Valve is tamper-proof and requires no field maintenance. Corrosion-resistant materials are used throughout. The valve seal is made of silicone rubber. The spherical valve seat is Teflon coated for easy "break-away" action even after prolonged storage.

    The manual release push button is used to equalize the pressure or vacuum differentials in order to make opening the container easier. The button is recessed in the cover to protect it from damage and eliminate the possibility that an adjacent container might press the button and inadvertently cause the valve to remain open. A unique feature of the push button is a light duty spring under the cover, separating the button from the vacuum stem, which must be overcome before the button opens the valve.

    The TA770 valve is offered in two types: “Cracking” and “Reseal”. Cracking valves are rated by cracking pressure (the pressure at which the valve has opened enough to flow 1 cubic centimeter per minute) and the flow rate at 0.5 – 2.0 psi above the cracking pressure. Reseal valves are rated by reseal pressure (the pressure by which the valve is guaranteed to close after it has cracked open) and the flow rate at 1.5 psi above the reseal pressure.

    A gasket, washer and hex nut for mounting are provided with each valve. RFI/EMI shielding is also available. Please contact us for more information.

  • DH-D9629 - M14 Thread Double Differential Relief Valve (W Weather Shield)

    The BLD9629 Protects enclosures from the imbalance of internal and external pressures. It is made from Anodized Aluminum.

    The valve has a weather shield for added protection and can be supplied with R.F Screening Continuity if required.

    We can offer this valve in a range of pressure settings, please contact us for more information.

    The internal M8 Mounting thread on the rear can be used to fit BLD9600 which is our ultra clean desiccators.

  • DH-D6637 - M30 Thread Pressure Relief Valve (Polycarbonate)

    The DH/D6637/01 Protects enclosures from the imbalance of internal and external pressures. It is made from mixture of polycarbonate and stainless steel. The valve requires a 30.5mm diameter hole and is fitted with a manual override button for safe equipment opening.

    We can offer this valve in a range of pressure settings, please contact us for more information.

  • DH-D7047 - Unthreaded FDA Approved Two Way Relief Valve

    The DH/D7047 is a FDA Approved Two Way Relief Valve which can be used in medical or food devices.

    The items can be used to release steam build up in cookers or equalize pressure in medical storage containers.

    Please contact us for more information on this valve.

  • DH/D8405 - M25 Thread Stainless Steel Relief Valve

    The DH/D8405 is a Two Way Pressure Relief Valve which can also be used in conjunction with a Desiccator thanks to the M20 internal thread on the rear.

    The Valve has a key slot on the front and a Diamond Knurl cut body to help fitting.

    The unit can be set to varying pressures, please contact us for more details.