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NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service KitsBurst discs are a safety device that ruptures if system pressure goes above its rating, protecting the pump, hoses and the rest of the machine. We stock colour-coded discs rated from 1800 to 6000 PSI. Anti-vibration mounts isolate engines, motors and pumps from the frame, reducing noise, vibration and wear.