PULSAR 4 PRESSURE ACTUATED UNLOADER BLUE SPRING EZ PULSAR4KHPEZ*

pulsar 4 pressure actuated unloader blue spring dual bypass with ez start 

valve 10.5 gpm max 4000 psi max 194 deg f max 3/8" fpt in/out and bypass 

pressure point tip: 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. contant 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 steel construction 
• multiple connections for easy installation 
• built-in easy start valve 
• powerful spring action provides reliable pressure adjustment 
• hexagonal shaped check valve avoids jamming 
• o-rings before threads so threads do not see pressure 
• new fitting shape, ball always in axis with the seat
• larger porting throughout unloader to allow higher flow 
• knob is fitted with a locknut for minimum and maximum pressure regulation 

specifications:

• maximum flow: 10.5 gpm 
• maximum discharge pressure: 4000 psi 
• maximum temperature: 194f. 
• port sizes: 3/8" pft inlet, discharge and bypass 
• weight: 1.6 lbs.