Pressure valves provide a constant counterpressure and prevent siphoning Opening pressure is fix at 3 bar

DDA 200-4 AR-PVC/V/C-F-31A7A7B The SMART Digital DDA is a compact positive displacement

DDA 30-4 AR-PP/E/C-F-31U2U2FG The SMART Digital DDA is a compact positive displacement

They have a litre scale and a black screw cap

The mechanical shaft seal is a special designed

crn 5 22 a fgj a v hqqv 96517219 Pressure valves provide a constantVertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). Pump materials in contact with the liquid are in high grade stainless steel. A cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Power transmission is via a rigid split coupling. Pipe connection is via combined DIN ANSI JIS flanges. The pump is fitted with a 3 phase, fan cooled asynchronous motor.