Graco 235998, 600 PSI Thermal Relief Kit For Series C, Fire-Ball 225, 3:1 and 1/4:1 Dyna-Star Oil Pumps Emergency Shut Off Valves Push to lock adjusting knob

Push to lock adjusting knob

and municipal garages

the integrated bleed hole featured allows less than 2% of the maximum flow to relieve fill line pressure allowing the fill nozzle to be removed without spilling product

Pressure Vacuum Vents are installed on the top of vent pipes from underground or aboveground fuel storage tanks

FlowLock™ allows nozzle to shut-off when falling out of a fill pipe

Graco 235998, 600 PSI Thermal Relief Kit For Series C, Fire-Ball 225, 3:1 and 1/4:1 Dyna-Star Oil Pumps Emergency Shut Off Valves Push to lock adjusting knobDesigned for Series C, Fire Ball 225, 3: 1 and 1 4: 1 Dyna Star pumps Maximum Fluid Relief Pressure psi: 600psi Thermal expansion of fluid in the outlet line can cause over pressurization. This can occur when using hard plumbed fluid lines exposed to sunlight or ambient heat, or when plumbing from a cool to a warm area (for example, from an underground tank to a fluid lines along the ceiling). In a properly functioning pressure relieved system, when