Product Overview The Spirax Sarco SP7 is a smart, electronically configurable electro-pneumatic valve positioner designed for mounting on pneumatic linear or rotary actuators that conform to NAMUR. It guarantees exact proportionality between the valve stroke and the electrical input signal (mA) into the positioner. The SP7-1* has a cast aluminium housing that is treated for outdoor installation. The unit can be mounted onto pneumatic actuators with rotary travel of -57 to +57
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