SS 316L PVC SS 316L PVC 1“ 1“ 116 170 35 35 1“ 1“ 78 110 55 55 MS1 C165 165 3/4“ 3/4“ 78 75 80 80 3/4“ 3/4“ 58 52 80 80 MS1 C138 138 14 Solutions for Water & Industry The MS1 series mechanical diaphragm dosing pumps offer multiple combinations of pump head and motor power that allow the selection of the optimal combination most suited to the specific application. The MS1 Series achieves flow rates between 1.45 and 170 gph with a pressure of up to 116 psi making it very flexible. The MS1 pumps have a spring return mechanism in a single aluminium housing. Each model can be adjusted to between 0 - 100% of the total flow rate. This can be done manually or automatically by using the AKTUA actuator which operates with a 4 - 20 mA signal. In addition, Spring MS1 pumps can be supplied with a single or three-phase electric motor with IP55 protection. Spring MS1 Mechanical diaphragm dosing pumps Product Line Technical data MS1 B108 Spring MS1 108 Diameter [mm] 78 Frequency max [stroke/min] 27 Flow rate [gph] 185 116 Pressure [psi] 3/8“ 3/8“ NPT Connections [inch]