Compressor Blow Off Valves

99331670 blow down valve releases compressed air when the pressure within the system exceeds a preset limit, thereby preventing the pressure from reaching levels that could compromise the integrity of the compressor or other connected components.

In operation, the blow down valve is typically set to open at a pressure slightly above the maximum operating pressure of the compressor system. This ensures that under normal operating conditions, the valve remains closed, allowing the compressor to build up pressure and supply compressed air as needed. However, if the pressure rises beyond the safe threshold—often due to factors such as system malfunctions, blockages, or excessive demand—the blow down valve activates.

When the blow down valve opens, it rapidly vents the excess compressed air to the atmosphere or a safe venting area. This action quickly reduces the pressure within the system, preventing any potential damage that could occur if the pressure were allowed to continue rising unchecked.