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Innovative 3-Position Pendulum Valve provides accurate, repeatable pressure control

Traditional 3-position valves accomplish vacuum isolation and rough pressure control via an adjustable air cylinder. Unfortunately, the single, mid-open set point is neither accurate nor repeatable. Nor-Cal Products’ 3-position throttling pendulum valve uses the patented Intellisys closed loop control technology to provide much better set-point accuracy and repeatability, anywhere from 0.1 to 99.9% of stroke. Simple TTL inputs are used to trigger the controller and valve to go open, closed or to the third position – much in the same manner a 3-position air cylinder would be commanded using solenoid pilot valves. Alternatively, an RS-232 communications link is available for remote control and set-up to users who prefer this method of interface over the manual local mode.

 

ABOUT INTELLISYS ADAPTIVE PRESSURE CONTROL 
IntellisysTM components fulfill downstream pressure control system with high-performance, closed-loop motor control throttling butterfly, pendulum, and gate valves, controllers and pressure gauges. Reduce time to pressure setpoint and increase tool throughput with over 100,000 control resolution steps and a 20x speed increase. Choose from stand-alone buried box or on-valve DSP-powered adaptive pressure controllers compatible with many available host communications interfaces such as DeviceNet, Ethernet, EtherCAT, RS-232, RS-485, and Analog/TTL. A Universal Valve Drive, a motor drive product, can be tailored to fit most other manufacturers’ valves to greatly improve their pressure control performance at a reduced cost. Capacitance diaphragm gauges feature an ultra-stable ceramic diaphragm, advanced digital circuitry in all unheated and heated models, and are available in common ranges. Popular fittings and connectors are offered.

 

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