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Pressure relief devices are major emission control devices. Relief valves protect against damage from pressure or vacuum and reduce losses from product evaporation. Deflagration and detonation arresters reduce the risk of damage or injury from fire. Blanket gas regulators maintain a constant gas pressure inside the vapor space of a tank to protect against fire or evaporation.


Pressure/Vacuum Relief Valves
Pressure/Vacuum Relief Valves are protection devices typically mounted on a nozzle opening on the top of a fixed roof atmospheric storage tank. Their primary purpose is to protect a tank against rupture or implosion by allowing the tank to breathe, or vent, when pressure changes in the tank due to normal operations.

Pilot Operated Relief Valves
Pilot Operated Relief Valves serve the same primary purpose as pressure/vacuum relief valves, but with better performance characteristics than weight or spring loaded valves. Lower leakage and better flow performance make a pilot operated valve the solution when the focus is product conservation, expanded tank working band, and reduced fugitive emissions. A pilot operated relief valve provides the maximum available leakage control technology as specified in the Clean Air Act of 1990.

Blanket Gas Regulators
Blanket Gas Regulators can provide both pressure and fire protection for storage tanks by supplying a blanketing gas which maintains a constant positive pressure in the vapor space of a storage tank. In addition to preventing outside air and moisture from entering the storage vessel, a blanket gas regulator reduces the evaporation of the stored product to a negligible amount, resulting in product conservation and greatly reduced emissions.

Deflagration Flame Arresters
Deflagration Flame Arresters are fire safety devices used to protect stored or process media from deflagrations. A deflagration flame arrester can be used on the top of a tank or as an in-line safety device where combustible gases are transported through low pressure pipe lines. 

Detonation Flame Arresters
Detonation Flame Arresters provide flame protection and prevent high speed flashback in cases where a pipeline restriction, turn, etc. are located and at a compressor inlet and outlet to prevent flashback damage to equipment.

Emergency Relief Valves
Emergency Relief Valves protect tanks against excessive pressure caused by external fire exposure or flashes within the tank. Emergency relief valves provide higher flow capacity than standard pressure/vacuum relief valves.

Markets & Solutions

Oil & Gas

The hydrocarbon industries require cost-effective system protection with a special focus on reducing fugitive emissions.

Pharmaceutical / Biotechnology

We offer solutions specifically designed to provide protection for the stringent requirements of pharmaceutical processing.

Chemical Processing

The extent and complexity of the chemical industry requires top-of-the-line containment, process systems, and pressure relief valves.

Food & Beverage Processing

Product solutions that are specifically suited for a wide range of process applications where product purity is required.

Biogas Processing

We offer solutions specifically designed to assist in Biogas Processing. Biogas products protect property, the environment and life from fire and explosion and reduce emissions into the atmosphere safely.
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