Clippard's new stepper-controlled Eclipse proportional isolation valve is ideal in critical applications for liquid andSource: Clippard gas delivery, medical, analytical and industrial automation requiring ultra fine resolution and excellent repeatability. Patented ceramic technology provides precise proportional control combined with isolation valve attributes to meet the needs of the most stringent analytical and industrial process control applications.

Features of the design, which allow for custom flow profiles, include:

• Patent pending ceramic sliding seal
• Liquid and air capable
• Inert
• Flow resolution: 0.19 ml/min water and 0.007 l/min air max at 30 psig
• Zero dead volume
• Leak free: less than 0.05 standard cubic centimeter per minute (sccm)
• Repeatability: less than 0.5% of full travel
• Highly customizable
• Excellent linearity: less than 4% of full-scale
• 2.7 to 65 l/min flow control

The valve also delivers a long service life of typically over one million cycles. Power consumption is 2.5 W nominal during adjustment, and zero power is consumed to maintain position.