Used High Pressure Liquid Water Pump 37 – Heavy Duty Self-Priming Diaphragm / Solenoid Pump for DIY Misting & Automation

Overview 

The Model 37 High Pressure Water Pump is a compact, robust positive-displacement pump engineered for applications that require high liquid pressure and consistent flow. Sourced from high-grade surplus equipment, each unit undergoes testing to ensure reliable motor operation and pressure build-up. Its self-priming capability and durable diaphragm/piston design make it an excellent choice for makers building high-pressure outdoor cooling mist systems, automated plant watering setups, or mini pressure washers.

Key Features 

• High Pressure Output: Delivers solid head pressure, making it capable of pushing water through fine misting nozzles or long tubing runs.

• Self-Priming Capability: Can draw water from a non-pressurized reservoir or container positioned below the pump level.

• Durable Construction: Heavy-duty motor casing and chemically resistant internal valves designed for prolonged liquid transfer.

• Compact & Easy to Mount: Standard mounting bracket holes allow for vibration-damped installation inside project boxes or machinery chassis.

Technical Specifications 

Popular DIY Applications 

• High-Pressure Outdoor Misting: Pair with micro-fog nozzles for patio or livestock cooling systems.

• Agritech & Solar Sprayers: Build automated liquid fertilizer or crop misting rigs for small greenhouses.

• Coffee Machine Repair & Mods: Replacement pump for commercial or prosumer espresso setups requiring 9+ bar pressure.