Pneumatic valve actuator MD65

manualrotarypiston

To operate the SISTO-C diaphragm valves, we provide manually operated actuators as well as double- and single-acting pneumatic actuators. A change from manual actuator to pneumatic actuator – or vice versa – can easily be accomplished at any time. No nuts are required to attach the actuator to the valve body. The bolts are inserted directly into the valve body, an aspect which simplifies assembly considerably. The actuator housing and valve bonnets are made of one part and are weight-optimized. The reduced overall height ensures a significant reduction in space requirements, especially when using multiport valves. For the MD168 and MD202 sizes, a weight-reduced aluminium version is also available as an alternative to the stainless steel version. Equipment Handwheel made of PA66GF30 polyamide Clearly visible red position indicator, recognizable from all angles Stainless steel bonnet, electropolished Autoclavable Diaphragm suspension with floating nut Integrated adjustable stroke limit in open and closed position Options Integrated limit switches Locking device Stem extension Position indicator in stainless steel Equipment Piston actuator Valve bonnet in compact design, actuator housing and valve bonnet manufactured from one part Stainless steel stem Clearly visible red position indicator Stainless steel compressor Diaphragm suspension with floating nut Spring chamber venting by operating hole Spring to close – air to open Options Spring to open – Air to close Air to open – air to close Two-stage actuator (Coarse flow – fine flow) Hight temperature design with FKM/FPM seal Complementary options Feedback units Positioners Adjustable stroke limiter