Feature

Selecting the best pinch valve for your medical application

There are two primary types of pinch valves used in the medical and scientific industries: external and internal. Each has benefits and drawbacks, depending upon their end use.

30/11/2022 17:28:48

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The core functionality of a pinch valve is a flexible flow path element that is compressed by an external plunger or pinch
block. Most pinch valves employed in these industries are actuated using a solenoid, although some manual hand-actuated pinch valves exist, and they
operate like a clamp.

External pinch valves are characterised by tubing that can be easily replaced; internal pinch valves are sealed and maintenance
free. The choice of valve for a scientific or medical instrument application is dependent upon several factors. Consideration should be given to
the internal volume, carryover volume, maintenance, cycle life, and materials. These factors are discussed in greater detail below.

Read the full article in DPA's December issue

Written By Sophia Bell

Sophia Bell is the Group Editor of DPA, Connectivity, and PBSI. She joined the team in 2020 as Assistant Editor after achieving a First-Class Honours BA in English Literature and Film Studies from the University of East Anglia. In her current role, she leads the editorial strategy, driving digital growth and ensuring each title continues to deliver trusted, relevant insight for engineering and manufacturing professionals.