Products > Commercial Softeners > CLACK 1.5″ MAV (Motorized Alternating Valve) CLACK 1.5″ MAV (Motorized Alternating Valve) FEATURES AND BENEFITS 1.5” NPT or 1.5” BSPT Available Epoxy coated lead free brass valve body* Allows for two WS1.5 Valves to be a Twin Alternating System Full 1.5” ports with minimal pressure loss Provides for no raw water bypass during regeneration Provides choices of treated or non-treated water regeneration Proven and reliable Clack DC drive assembly Low voltage drive assembly controlled by valve’s circuit board Flow from Port A to Common has a 3.74 PSI drop at 60 GPM Flow from Port B to Common has a 2.15 PSI drop at 60 GPM Hydraulically Balanced Piston Valve Patented Seal/Spacer Stack Assembly Operating Pressures: 20 PSI Minimum 125 PSI Maximum Operating Temperatures: 40°F Minimum 110°F Maximum PART NUMBER PART NUMBER DESCRIPTION V3071 1.5″ NPT Brass MAV w/8′ Cable V3071BSPT 1.5″ BSPT Brass MAV w/8′ Cable Product Spec Sheet