• DH-D8887 - Panel Mounting Double Differential Relief Valve

    Two Way Relief Valves are designed for transit and storage containers but can also be used for electronic and electro-optics equipments. The valves have separate and distinct settings for both pressure and vacuum relief. Standard settings range from 0.5psid to 3.0psid reseal pressure. These valves are tamper-proof and require no field maintenance.  On some of these valves a desiccant cartridge can be fitted to adsorb moist air entering an equipment or container. Most valves have a manual release push button to equalize pressure or vacuum differentials in order to open the container or equipment.

  • DH-D2778 - M20 Thread Outward Relief Valve

    Outward Relief Valves are designed for use in electronic and electro-optics equipments. The valves have pressure relief only. Standard settings range from 0.5psid to 5.0psid pressure. These valves are tamper-proof and require no field maintenance. A typical application for pressure relief valve is a safety valve for pneumatic pipelines as used with DHD/8042/01. Note: all of our two way relief valves can also be set for inward or outward only pressure settings.

  • DH-D2777 - M24 Thread Inward Relief Valve

    Inward Relief Valves are designed for use in electronic and electro-optics equipments. The valves have vacuum relief only. Standard settings range from 0.5psid to 5.0psid pressure. These valves are tamper-proof and require no field maintenance. On some of these valves a desiccant cartridge can be fitted to adsorb moist air entering an equipment or container. A typical application for these valves is gas scavenging as with DH/D6017/01, they can also be used as check valves for pipelines. Note: all of our two way relief valves can also be set for inward or outward only pressure settings.

  • DH-D9156 - 4” UNF Thread Pressure Relief Valve

    Our High Flow Valve is intended for applications requiring the moving of large amounts of air in short periods of time, automatically. This offers both pressure and vacuum relief for rapid decompression or explosive decompression. The manual release button ensures easy entry into the enclosure when it is under vacuum conditions and safe opening when the container is pressurized. The attached retaining clip guarantees the button is only used when intended. The lanyard makes losing the retaining clip impossible.

  • DV3-05 - High Flow Toggle Pressure Relief Valve

    The Deluge pressure relief valve is a new design Brownell Ltd has developed, for over pressure and vacuum relief applications.

    The range has standard sizes of 25-200mm. These valves have an unusual operating characteristic. After fully opening there is a proportional decrease in back pressure. This allows significantly higher increases in gas flow when compared to similar size relief valves.

    These valves have reaction speeds of less than 0.2 seconds this product is suitable for various applications, such as over pressure in pipelines, pressure vessels, storage vessels, equipment containers and safety relief applications. The deluge relief valves are fully automatic and reset after opening, even when maximum flow performance has been achieved.

    The standard range of pressure settings is from 0.5 to 5 psi for pressure and vacuum relief. These products can operate in aggressive environments, including corrosive chemicals, driving rain, and low & high temperatures. A weather and impact shield provides further mechanical and physical protection. Additional product options also include debris filter, EMC screening and a manual relief override.