HSH-Flo Control Valve 2 Way 1-1/2" 24VDC/AC On/Off Proportional Modulating Motorized Electric Ball Valve (1-1/2'') 0-10V Or 4-20mA Proportional-Integral Valve 10N.M Big Torque Available Control The Valve Part Open Base on your Project Need BSP(G) Thread Standard Manual Override Control In Case Power Failed