Pulsar 4 Unloader Pressure Actuated Blue Spring THERMAL RELIEF (8) 14 detergent proportioners

(8) 14 detergent proportioners

Repair Kit for ST-457 5

All are made of heat-treated steel for extended life

Bypass port: 3/4" MPT

Pulsar 4 Unloader Pressure Actuated Blue Spring THERMAL RELIEF (8) 14 detergent proportionersPulsar 4 Pressure Actuated Unloader Blue Spring 10. 5 GPM max 4000 psi max 194 deg F max 3 8" FPT in out and bypass Pump guru advice: Do not adjust this knob regularly. Set the unloader using a ball valve, whip hose and gauge to 200 psi above the operating pressure of the pump and leave it alone. Constant adjustment will cause premature failure and scoring of the shaft or possible damage to the head or manifold of the pump. Features: Sturdy brass and