Iwaki HRP Series Electromagnetic DC Metering Pump

The Iwaki HRP series is an ultra-compact electromagnetic DC metering pump (about 102 x 51 x 89 mm) designed specifically for OEM applications. It is sized for easy integration into the host equipment, runs from a 12 or 24 VDC supply and offers four integrated control options. The HRP-54 is offered with a vertical (V) or a horizontal (H) port configuration. Mikron Proses (Üsküdar, Istanbul) supplies Iwaki pumps in Turkey and provides application consulting on pump selection.

Integrating a small dosing pump into your equipment? → Send us your requirement

For the wider range of Iwaki dosing pumps, see Iwaki chemical metering pumps.

Performance and drive

The pump is supplied with 12 VDC (1.5 A) or 24 VDC (1.0 A) and uses 5.6 W on average. The stroke rate runs from 0 to 720 strokes per minute and the flow from 0.055 to 38 mL/min. The maximum discharge pressure is limited to 0.2 MPa, which suits low-pressure OEM duties that need a small, precise dose. Liquid and ambient temperature are limited to 0-40 °C.

Four integrated control options

The HRP is built with one of four control types. Pulse: one stroke per pulse signal, in synchronous operation, from a dry contact or open collector input. 4-20 mA: 0-720 spm in proportion to a 4-20 mA signal. 1-5 VDC: 0-720 spm in proportion to a 1-5 VDC signal; the source must provide a current capacity of 25 mA or more. Start/Stop: the pump runs at a fixed 720 spm and stops while a contact input is present. The model code (for example HRP-54V-1P1) identifies the drive unit (5: 5.6 W), the discharge capacity (4: 38 mL/min), the port orientation (V or H), the supply voltage (1: 12 VDC, 2: 24 VDC) and the control method (P, A, V or S).

Wet end materials and applications

The pump head is PVDF, the diaphragm is PTFE-EPDM, the valve is alumina ceramic, the valve seat and O-ring are FKM, the valve spring is PEEK and the gasket is PTFE. Tube connections are available as Ø1/8 x Ø1/4 in, Ø3 x Ø6 mm or Ø4 x Ø6 mm. Iwaki lists sterilizing and reprocessing equipment, analytical equipment, medical devices, water quality systems and car wash machines as standard applications for the HRP.