The Normally Closed Microvalves

For increased functionality in fluidics
Memetis Microvalve on a finger

The Normally Closed Microvalves from memetis are normally closed (NC) and ultra-compact. The width of only 5 mm allows the integration of multiple valves in the smallest of installation spaces and thus highly functional fluidic systems.

The current-regulated valves switch noiselessly, can be proportionally controlled and are media-separated to enable innovative solutions in your microfluidic applications. 

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Advantages of the NC Microvalves

  • ultra-compact
  • low internal volume < 6.5 µl
  • low power consumption
  • biocompatible materials
  • media-separated
  • autoclavable
  • noiseless operation
  • proportionally controllable
  • up to 10 million switching cycles
  • easy electrical and mechanical integration
  • works for fast-flow movement sensitive applications
  • customizable

Microvalve Variants


For realizing your system setup, we offer two NC valve variants as off-the shelf products:

Pressure ranges for memetis microvalves

Classic - valve variant of choice for operating liquids and gases with 0 to 3 bar pressure

Negative Pressure - valve variant of choice for operating with -0.7 to 2 bar pressure

If you require a valve to operate with up to 8 bar pressure, you can request the High Pressure variant with a minimum order quantity from 10 valves.

download data sheets

Connectors and Adapters


The Normally Closed Microvalves can be used in many different ways. Let the variety of our adapters inspire you:

"Memetis fixed microvalve with tube adapter "
Memetis fixed microvalve with tube adapter and fittings
valve network to which Memetis microvalves can be attached
Example of system integration with Memetis microvalves

Questions regarding valve integration? 

We are happy to support you!

 

Contact us

TESTING MADE EASY

Try out our test bundles. They contain everything you need to get to know our valves. 

The Bestseller Bundle

All you need for testing the NC Classic valves is covered in this bundle. The package includes 2 NC Classic valves with a programmable control unit and 2 connectors or adapters.

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Test kit with two classic, NC valves

The Negative Pressure Microvalve Bundle

This bundle provides you with 2 NC Negative Pressure valves with a programmable control unit and 2 connectors or adapters for testing the valves in your fluidic system.

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Test kit with two negative pressure, NC valves

The Let It Flow Bundle

This bundle includes an adapter for distributing or merging liquids and a Bartels Mikrotechnik pump setup together with 2 NC Classic valves and an electronic control unit.

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Test kit with two valves and a Bartels pump
Customer comment / The valve in use
Rapid Fluidics

"These shape-memory alloy valves use virtually no power to actuate, have less than 4ul dead volume and are near-silent in operation. Paired up with a TTP Ventus Ltd Discpump you get a great, miniature, silent system."

Paul Marshall, Rapid Fluidics

How does the valve work?

This short animation unveils the inside structure of the memetis NC microvalve and shows the opening process that is induced by the shape memory actuator:

When the current is switched on, the actuator acts against a spring element, thus releasing a ball from the valve opening. When the current is switched off, the spring element pushes the ball back onto the valve opening. Between the ball and the valve opening is an elastic membrane that prevents fluids from entering the actuator section of the valve. The patented layered design allows for customization.

More on Shape Memory Alloys

Have we sparked your interest?

Order your Normally Closed Microvalve now via our web shop. Fast delivery - easy payment - comprehensive test accessories.

You have special requirements or would like advice? Write us via our contact form and we will reply within 24 hours. 

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