Rain Bird 100-PESB 1" Inlet Industrial Irrigation Valve w/Self-Cleaning Scrubber 0.25 - 200 Gallons per Minute Flow Rate Manual internal bleed manually operates the valve without allowing water into the valve box; allows pressure regulator to be adjusted without turning the valve on at the controller first. Normally closed, forward flow design. One-piece solenoid design with captured plunger and spring for easy servicing. Prevents loss of parts during field service.