RP01 6 mL Precision Piston Pump

Name: RP01 6 mL Precision Piston Pump
Brand: Nanjing Runze Fluid Control Equipment Co., LTD.

The RUNZE RP01 is a 6 mL stepper-driven piston pump for instrument liquid handling. Choose a single-port head, an L-type dual-port head or a dual-port head with an integrated solenoid valve. Encoder and driver options are configuration-dependent. The pump uses a ceramic piston and 1/4-28 UNF female fluid ports for integration into analytical and automated dispensing equipment.

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Overview

RUNZE RP01 piston pump overview with three pump-head options

Choose the Pump-Head Configuration

Pump-head type	Configuration guidance
Single port	One fluid connection for a system with external flow routing.
L-type dual port	Two fluid connections arranged on the pump head; plan the external fluid circuit for the required aspiration and dispensing sequence.
Dual port with solenoid valve	Pump-head configuration with an integrated valve for fluid-path switching; coordinate valve operation with piston movement.

The pump-head arrangement, encoder and driver must be selected together. The product range includes versions with and without an encoder and driver. Availability depends on the exact configuration; do not assume every pump in the photographs contains the same electronics or valve.

RP01 6 mL pump options with different heads, encoder, driver and solenoid valve

Stepper-Driven Liquid Displacement

Piston travel changes the volume in the pump chamber for aspiration and dispensing. A stepper motor drives the mechanism, allowing the pump to be integrated into an instrument motion-control sequence. The commanded displacement, fluid circuit and operating speed should be selected for the intended dose and cycle time.

System performance also depends on priming, trapped air, tubing compliance, fluid properties and backpressure. Validate the complete fluid circuit with the intended liquid. Nominal motor resolution is not the same as a guaranteed minimum dose or dispensing accuracy.

RP01 piston pump motor drive and liquid dispensing illustration

Technical Specifications

Parameter	Published specification
Nominal displacement	6 mL
Motor	35 mm stepper motor; 1.8° step angle
Nominal displacement resolution	0.005 mm travel / 1.5707 µL
Repeatability	0.3%–0.7% at 100% stroke
Maximum motor speed	500 rpm
Full-stroke time	2.292–1146 s
Power supply	DC 24 V, 1.5 A
Listed power	15 W
Wetted materials	PC, ceramic and PTFE
Fluid ports	1/4-28 UNF female
Operating ambient temperature	5°C to 55°C

Repeatability is specified at full stroke and must not be presented as guaranteed performance for every smaller dose. Confirm the selected configuration and test conditions before using these values in an instrument specification. The ambient temperature range is not a fluid temperature rating.

Dimensions and Installation Layout

The installation envelope changes with the pump head, encoder and driver. Use the drawing that matches the ordered configuration. Check the mounting interface, tube routing, cable access and required service clearance in the final instrument layout.

RP01 single-port and L-type dual-port pump dimensional drawings with and without encoder and driver

RP01 solenoid-valve pump dimensional drawing and rear interface layout

Electrical Integration and Valve Control

A version without a driver requires a suitable external drive and control arrangement. A driver-equipped version uses the interface and communication instructions supplied for that exact controller. Confirm the electrical configuration before connecting power or signal wiring.

The illustrated driver layout identifies RS232 and RS485 connections and a CAN position marked NC. Do not assume active CAN communication from the presence of a label or connector. Use the confirmed controller manual for pin assignments, communication settings and command syntax.

For the solenoid-valve version, the supplied valve information specifies a 24 V supply with ±10% tolerance, approximately 154 mA starting current and 42 mA steady current. The listed starting power is 3.7 W and steady power is below 1 W. These are valve values, not a replacement for the complete pump power specification.

RP01 controller interface definitions and solenoid valve specifications

Fluid Compatibility and Connection Selection

Check compatibility with every wetted material: PC, ceramic and PTFE. Do not treat the presence of a ceramic piston or PTFE component as proof of compatibility with all solvents, acids or alkalis. Confirm the actual fluid, concentration, temperature and cleaning process.

The fluid port is 1/4-28 UNF female. Select a matching male fitting and the correct tubing size. This thread designation is not a 1/4 inch tube OD specification and is not interchangeable with NPT or other thread forms.

Typical Instrument Applications

The RP01 can be considered for reagent delivery, sample preparation and controlled liquid transfer in laboratory, biological and chemical analysis equipment. Other application examples include environmental monitoring, food analysis and petrochemical testing instruments.

Choose and validate the pump as an instrument component. Application illustrations do not establish approval for patient-connected infusion or other clinical use.

RP01 piston pump application examples in laboratory and analytical instruments

Product Details

The photographs below show the pump mechanism, head options and selected assembled configurations. Tubing and other connected components in application photographs are installation examples; confirm the supplied components in the quotation.

RP01 piston pump photographs and close-ups of the valve and pump-head assembly

Frequently Asked Questions

Is 6 mL the flow rate?

No. It is the nominal pump displacement. Flow and cycle time depend on piston speed, stroke selection, the aspiration/dispensing sequence and the connected fluid circuit.

Does every RP01 include a driver, encoder and valve?

No. These features depend on the ordered configuration. Specify the pump-head type and required electronics when requesting a quotation.

Does the resolution specify the smallest reliable dose?

No. The nominal displacement resolution describes the drive increment. Reliable dose size must be established by testing the complete system with the intended liquid and operating conditions.

Which drawing and wiring instructions should I use?

Use the documents for the exact pump and controller configuration. A drawing or connector photograph from another version is not sufficient for wiring or mechanical integration.

Request an RP01 Configuration

Send RUNZE your target dose, liquid and concentration, required cycle time, operating backpressure, tube size, preferred pump-head arrangement and control method. Include any space limits and whether a driver, encoder or integrated valve is required. We can review the configuration and provide the corresponding quotation and integration information.