RVM – Rotary valve

The ultra-low internal volume rotary valve

Create your own optimised flow path

This is an OEM product. It can be tailored for the needs of your instrument.


Our OEM valve is a precise low-pressure electric rotary valve designed for automated microfluidic applications. Its exceptionally small channels and accurate positioning system make it ideal for precise liquid handling.

Showing an unrivaled small wetted volume and an exceptional ease of use, this valve is the perfect companion for liquid distribution in your instrument or laboratory experiments at a reduced cost. A low power model exists for a minimum battery use and a fast one exists for your time-specific applications.


  • Excellent biochemical compatibility
  • Optimised to limit contamination
  • Easy to use and integrate
  • Light and compact
  • Swiss quality
  • Replaces a manifold with multiple valves


  • Sample preparation automation
  • Multiplexing
  • Sample loops
  • Adapted for battery operated devices


  • Select channel
  • Change flow path
  • Stop flow or isolation


Hover or click on an advantage to see more information.

Technical specifications

 Valve configurations


Lets you choose 1 among N channels.

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Number of ports: 6, 8, 10, 12

Channel diameter: 0.5 mm, 1 mm

Internal volume: 2.5 - 18.1 μL

Carryover volume: 1.5 - 11 μL

Dead volume: None

Known aliases: (N+1)-port/1-channel valve, N-port distribution valve, N-port selection valve, (N+1)-port/N-position valve


ON/OFF series

Simple switch. Flow or no flow.

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Number of ports: 2

Channel diameter: 0.5 mm, 0.75 mm

Internal volume: 3 - 6.6 μL

Carryover volume: -

Dead volume: None

Known aliases: isolation valve, shutoff valve


SWITCH series

Channels are linked two by two.

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Number of ports: 4, 6

Channel diameter: 0.5 mm

Internal volume: 2.5 - 2.75 μL

Carryover volume: 0.55 - 0.8 μL

Dead volume: None

Known aliases: N-port/(N/2)-channel valve, switch valve, loop valve

Other configurations are available upon request.

Valve heads are interchangeable.

The wetted materials being PTFE and PCTFE, the valves offer an exceptional compatibility to most chemicals and biological samples. For the 10 and 12 port distribution valves, the material are UHMW-PE and PCTFE.

Model specifications

Configuration Power Rotation time for 180° Weight (total module) Dimensions
Low power motor 5-10 VDC, 0.5 A peak 1.5 s 250 g 29 x 38.3 x 111.8 mm
Fast motor 18-24 VDC, 2 A peak 400 ms 450 g 42.3 x 60 x 95.9 mm

Other specifications

Operating temperature 5-40°C (41-104°F)
Operating humidity 20-80%, non condensing
Maximum pressure 5 bars (72 psi)
Wetted materials PTFE, PCTFE
Channel diameter 0.5 mm (0.020 in) / 0.4-1 mm (0.015-0.039 in) available upon request
Internal volume 2.5 - 13.7 μL port-to-port (Configuration dependent)
Carryover volume 0.55-6.7 μL port-to-port (Configuration dependent)
Dead volume None
Tube port fittings Standard 1/4-28 UNF, flat-bottom
Electrical interface USB mini (RS-232, RS-485 upon request)
Communication type Serial communication, I2C (other upon request)

Compatible accessories

Choose or buy additional valve heads, fluidic kits and cables.