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Metering pumps & dosing pumps

High resolution & ultra compact

Compact electromagnetic metering pumps  HRP series (OEM only)

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Compact electromagnetic metering pumps HRP-54V
HRP-54V


Compact electromagnetic metering pumps HRP-54H
HRP-54H
DC power voltage / vertically- or horizontally- oriented pump head
The HRP series is powered by 12VDC or 24VDC and offers an ideal fit for built-in applications. Select vertically- or horizontally-oriented pump head to get optimum mounting position in various host machines.

High resolution
Digitally-controlled spm range is 0-720spm. The minimum flow of 0.055ml per shot offers a constant imperceptible injection.

Waterproof and dustproof structure
The sealed drive unit and control unit are enclosed to a water/dust-proof rating of IP65.
• This pump is not completely water resistant. Protect the pump with a cover when installing it out of doors.

Operational function
HRP pumps are controlled by an external signal and are available in the following types.

Pulse control type
A pulse signal input controls pump operation (stroke rate). The pump makes one shot per pulse synchronously.
• An input signal is required to enable operation in addition to power activation for this type.
• The pump can not exceed a maximum of 720spm, even if the external signal input instructs the pump to run beyond that speed.


4-20mA control type
The input of 4-20mA proportionally controls the pump operation (stroke rate).
• An input signal is required to enable operation in addition to power activation for this type.

1-5V control type
The input of 1-5V proportionally controls the pump operation (stroke rate).
• An input signal is required to enable operation in addition to power activation for this type.

Stop control type
The input of the stop signal suspends the pump operation.
• The type of pump starts to run at 720spm upon power activation.

Pump & Drive units
 Model  HRP-54V-1, HRP-54H-1   HRP-54V-2, HRP-54H-2
 Flow rate  38 mL/min
 Max. discharge pressure  0.2 MPa
 Stroke rate  0 to 720 spm
 Tube connection bore  Ø3 X Ø6, Ø4 X Ø6, Ø1/8 X Ø1/4
 Power voltage  DC12V  DC24V
 Power consumption  5.6V
 Current value  1.5A  1.0A
 Weight  0.5kg
• This specification is based on pumping ambient clean water at rated voltage.
• Flow rate is collected at the maximum discharge pressure and 720spm. The flow rate increases as a discharge pressure decreases.
• Allowable room temperature: 0 - 40 ºC • Allowable liquid temperature: 0 - 40 ºC
• Allowable voltage deviation: ±5% of the rated voltage 12VDC: 11.4V - 12.6V, 24VDC: 22.8V - 25.2V


Control unit
  Pulse control type 4 - 20mA control type 1 - 5V control type Stop control type
Upper limit spm 720spm 720spm 720spm 720spm (Fixed)
Operation One shot per signal (Synchronous operation) Note2 4-20mADC proportional operation to 0-720spm 1-5VDC proportional operation to 0-720spm The pump stops during contact input.
Input signal No-voltage contact or open collector Note1 Current: 4-20mADC Voltage: 1-5VDC (Current capacity of 25mA or more) No-voltage contact or open collector Note1
Note1: The maximum applied voltage to the contact is 12V at 5mA. When using a contact type relay, the minimum application load should be 5mA or below.
Note2: The external pulse signal is entered to run the pump over the upper limit spm, the signal is cancelled.
• Magnetic drive pumps
• Metering pumps
& dosing pumps
• Pneumatic drive pumps
• Air pumps
• Gear pumps
• Turbine pumps
• Screw pumps
• Water quality control

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