Products > Grease Fittings & Lubrication > Fittings > Relief Vent Fittings
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Relief Vent Fittings
Pressure relief vents open and close within a predetermined pressure range. As internal pressures rise, the plunger or check ball opens, allowing pressure to vent. As pressures decrease to below the minimum threshold, the valve closes.
Relief Vent Fittings

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