The three-way solenoid-operated DirectoValve control valve bypasses boom flow to maintain constant spraying pressure when one or more boom sections are shut off. To maintain pressure with a 23520 throttling valve, outlet 2 must be throttled to match the total capacity of the nozzles on that boom section.FeaturesFor pressures up to 65 psi (4.5 bar).8 gpm (30 l/min) with a 5 psi (0.34 bar) pressure drop.2.5 amp current draw.Encapsulated 12 VDC coil can be easily changed without removing valve from line.Polypropylene body for chemical resistance.Internal metal parts are stainless steel.Chemical resistant EPDM diaphragms and seat washers.Note: 23520 throttling valve not included. ModelNumber AA(B) 144A-1-3 Number of Units in Assembly 1 Spray Line Connection 1/2" Continuous Flow Inlet Bypass Connection 3/4"