... ,Drive System: two phase motorProtection Degree: IP55Flow Control: Manual operationMaterialPump head: SUS304, SUS316, PVC, PTEFDiaphragm: PTFEValve: SUS304, SUS316, PVC, PTFEValve ball ... speed of stroke is adjustable.3.Easy to install, the pump is together with foot valve, injection valve and tubes for ... industry, constructions industry, and etc.Measurements JLM Solenoid Diaphragm Metering Pump