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Ultra-miniature solenoid valve saves space, uses less energy

18 August 2015

Lee Products offers an ultra-miniature, HDI 2-port latching solenoid valve for applications that require ultra-low energy consumption and minimal heat generation.

The valves weigh less than 2.5g, measure just 27mm L x 7.1mm D which results in smaller manifolds. For example, the HDI (high density interface) 2-port, NC SOV offers a 7.62mm centre-to-centre spacing and so reduces the area needed for a given number of valves. The close spacing also reduces the length of the connection passages from valve-to-valve inside the manifold which is particularly important when fast system response time is critical.

Available as a plug-in or face-mount option, the valves have a low internal volume of 28 microlitres for the plug-in and 34 microlitres for the face-mount. This results in a reduced carryover and so allows for faster purging and throughput.  They have an operating pressure range of inlet: Vac – 45 psig, a differential of 10 psid (max) and a leakage of less than 50 SµL/min @ 10 psid, air 21ºC.

They have an operating temperature range of 4ºC to 49ºC and require only momentary (10 to 30ms) pulses of current to switch to, and remain in, each state with the polarity of voltage on each terminal pin controlling the switched position.
Other benefits are long-life expectancy (up to 250 million cycles on air depending on the seal material and application parameters), repeatability, high flow capabilities in a small package  (450 Lohms) and exceptional sealing performance (max leakage of 50µL/min @ 10 psid on air).

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