Collection: Flow Switches

Automate burner operation and protect your hot water pressure washer with professional flow switches designed for reliable flow detection. Flow switches automatically activate burners when water flows through the system and shut them off when flow stops, preventing dry firing and ensuring safe, efficient hot water operation.

Complete Flow Switch Solutions

  • Burner Flow Switches: Flow-activated switches that control burner ignition based on water flow detection
  • Thread Sizes: Flow switches in 1/4", 3/8", and 1/2" NPT configurations for various plumbing setups
  • Flow Rate Activation: Switches calibrated to activate at specific GPM thresholds for reliable operation
  • Electrical Ratings: Switches rated for 12V and 110V burner control circuits
  • Replacement Parts: Replacement flow switch components and rebuild kits for maintenance

Whether you're installing a new burner system, replacing a faulty flow switch, or upgrading your hot water pressure washer controls, flow switches provide essential safety and automation. The flow-sensing design ensures burners only operate when water is flowing through the coil, preventing dangerous dry firing that can damage heating coils and create safety hazards in hot water pressure washing operations.

Looking for burner components? Browse our burner replacement parts. Need other electrical components? Check out our electrical parts & accessories and complete product catalog.