Miniature shape memory alloy pinch valve

Catherine M. Pemble; Bruce C. Towe

doi:10.1016/S0924-4247(99)00157-0

Miniature shape memory alloy pinch valve

Catherine M. Pemble, Bruce C. Towe

Biological and Health Systems Engineering, School of (IAFSE-BHSE)

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

A normally closed miniature pinch valve employing a Nitinol shape memory alloy actuator to control flow in silicone microbore tubing has been designed, fabricated, and tested. The valve can withstand long term exposure to fluids because only the tubing interior is contacted by the regulated fluid. The valve has application to microflow chemistry and has the advantage of compact and simple construction. At a differential pressure of 3 psi the valve permits a maximum flow rate of about 0.28 ml/s and has a 398 mW power dissipation. The maximum differential pressure the valve can withstand is greater than 30 psi.

Original language	English (US)
Pages (from-to)	145-148
Number of pages	4
Journal	Sensors and Actuators, A: Physical
Volume	77
Issue number	2
DOIs	https://doi.org/10.1016/S0924-4247(99)00157-0
State	Published - Oct 12 1999

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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10.1016/S0924-4247(99)00157-0

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AB - A normally closed miniature pinch valve employing a Nitinol shape memory alloy actuator to control flow in silicone microbore tubing has been designed, fabricated, and tested. The valve can withstand long term exposure to fluids because only the tubing interior is contacted by the regulated fluid. The valve has application to microflow chemistry and has the advantage of compact and simple construction. At a differential pressure of 3 psi the valve permits a maximum flow rate of about 0.28 ml/s and has a 398 mW power dissipation. The maximum differential pressure the valve can withstand is greater than 30 psi.

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Miniature shape memory alloy pinch valve

Abstract

ASJC Scopus subject areas

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