Metering Pumps HRP Series • • • • • • High resolution/Ultra compact 4” x 2.5” x 3.5” Internal or external control IP65 waterproof and dustproof design DC voltage operation PVDF pump head with ceramic balls and FKM elastomers 4 types of control: »» pulse »» 1-5 VDC »» 4-20mA »» start/stop Flow Rate ml/min Tube connection Liquid & ambient temperature 0 - 40°C Allowable voltage deviation ±5% of rated voltage Control type Input signal 1 stroke per pulse (synchronous Dry contact or open operation) collector Voltage 1-5 VDC (Current capacity of 25 mA or more) Pump stops during contact input Dry contact or open collector Materials Gasket: PTFE Valve: Alumina Ceramic O ring: FKM Gasket: PTFE Valve spring: PEEK Valve seat: FKM Pump head: PVDF Diaphragm: PTFE + EPDM Pump head: PVDF Valve: Alumina Ceramic Diaphragm: PTFE + EPDM O ring: FKM Material code PVDF: Polyvinylidene diuoride FKM: Fluorine-contained rubber PTFE: Polytetrauoroethylene

1 PUMP SERIES 2 DRIVE UNIT Average power consumption 5 = 5.6W 3 DISCHARGE CAPACITY 4 = 38 mL/min 4 PUMP HEAD V = Vertically oriented H = Horizontally oriented CONTROL METHOD P = Pulse A = 4-20 mA V = 1-5VDC S = Start/stop ABOUT US Walchem integrates its advanced sensing, instrumentation, fluid pumping and communications technologies to deliver reliable and innovative solutions to the global water treatment market. Our in-house engineering is driven by quality, technology and innovation. For more information on the entire Walchem product line, visit: www.walchem.com Walchem, Iwaki America Inc....