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Quiet operation for solenoid valve ensures optimum patient comfort

Quiet operation for solenoid valve ensures optimum patient comfort
A new quiet operation, compact high density interface (HDI) 3-way solenoid valve for controlling gas or air flows in medical devices has been introduced by miniature component specialist Lee Products. Minimising the noise emitted from bedside medical devices contributes to increased patient comfort and thanks to the latest design techniques, the valve operates with noise levels reduced by 50% compared to other types of solenoid valves. 

A typical solenoid valve operates with an inherent clicking sound when energised which is caused by the metal-to-metal contact of the moving armature and stationary core. With Lee Products' quiet operation HDI valve, a synthetic hydrocarbon fluid is used in the wetted section of the valve. This effectively dampens the sound level of the valve's components to less than 37dBA when recorded and measured at a distance of 24in and a valve cycle frequency of 10Hz. 

Other features of the valve include an operating pressure range of Vacuum -45 psig (0-15 psid) and a flow capacity on air (3-way model) of 4.4 SLPM at 10psig (1500 Lohms; Cv = .013). Operating temperature range is 40°F to 120°F and life expectancy is 250 million cycles. Available in face mount, plug-in and ported configurations, the quiet operation HDI weighs less than 4.5 grams and is ideal for medical applications including dialysis machines, patient monitors, ventilators, respirators and other bedside medical devices.
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