Butterfly Valve Pneumatic Actuator

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Technical Data 1)Standard Working temperature - 20°c~ + 80°c(-4°F~175°F) - available upto -40°c only by changing to the O-ring material 2)Maximum Working Pressure - 150psig 3)Operating Media - Clean, Dry Air, Hydraulic Oil - Non corrosive Gas 4)Travel Stop - rack & Pinion : ±5° - Scotch Yoke DA : ±5° - Scotch Yoke SR : ±5° 5)Rotation : 90° 6)Air supply : 40psi ~ 150psi 7)Permanently Lubricated Units Full Open / Close Position Adjustment Nogix actuator stroke is adjusted upto ±5° in both directions. Left special bolt is for open adjustment and right special bolt is for close adjustment. 100% Travel Stop Adjustment When the customers require to make the actuator stroke in less than 90° as like 15°, 45°, 60° and 80°, the actuator is supplied with longer bolts in both and caps to allow stroke adjustment from 0° to 90°. Scoth Yoke Design SDAC is designed to acquire maximum torque output at the beginning of valve operation with most effient force required. Doble Piston-Doble Power SDAC has twice bigger torque as compared to the single cylinder by means of the double pistons operated simultaneously that is made up of 2 separated pistons. Various Materials and Coatings The housing of SDAC is finely proof against corrosive environment and mechanical impact through hard anordizing surface treatment. Other surface treatment are available on request and stainless steel is available as the housing materials. -Epoxy aoated Aluminum Alloy Housing Urethane coated Amuminum Alloy Housing Other major component materials - Cap : Epoxy coated Aluminum Alloy or Anodizing - Piston : Aluminum Alloy - Shaft : Zinc plated Steel / Stainless Steel - Gasket : NBR O-Ring - Design Temperature : -20°c~+80°c with NBR O-ring 40~150°c with Viton O-ring Interchangeability DIN/ISO 5211 part 1,2 : Rotary Cylinder and Valve NAMUR or VDI/VDE 3845 : Cylinder and Signal Unit Other Special Specification can be applicable on request Operation Double Acting Operation - CCW Air is supplied to port A forcing the pistons away from each other (toward ends), rotating drive pinion counterclockwise and exhausing air out of port B - CW Air is supplied to port B forcing the pisons toward each other (toward center), rotating drive pinion clockwise and exhausing air out of port B Spring return Operation - CCW Air is supplied to port A forcing the pistons away from each other (toward ends), rotating drive pinion counterclockwise, compressing springs and exhausing air out of port B - FAIL CW Air filure (loss of pressure) alows compressed springs to force pistons toward each other (toward center), rotating drive pinion clockwise and exhausing air out of port A

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nogix co., ltd

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