Product Name: at Series Rack and Pinion Double Acting and Spring Return Single Acting Stainless Steel / Aluminum Pneumatic Actuator for Ball / Butterfly Valve ISO5211 Ce Ex Model NO.: AT32 AT40 AT52 AT63 AT75 AT83 AT92 AT105 to AT400 Structure: Rack and Pinion Customized: Customized Material: Aluminum Acting Type: Double Acting Work Temperature: Normal Temperature Pressure: Medium Pressure Working Type: Rotary Adjusted Form: Rack and Pinion Power: Pneumatic Brand: OEM/Valvespro Type: Double Acting and Single Acting Color: Support for Customized Instructions Cover: Support for Customized Laser Printing: Support for Customized Warranty Period: 1 Year Install Accessories: Limit Switch Box / Solenoid Valve / Positioner etc Install Valve: Ball Valve / Butterfly Valve / etc Installation Standard: ISO5211, Naumur, DIN3337, etc. Certificate: Ce, ISO, Atex, SGS, Sil3 Cyliner Material: Hard Anodizing Piston: Hard Anodizing Function: Control Ball and Butterfly Valve Automatically Medium: Water, Oil, Air and Some Corrosive Liquid Ambient Temperature: -20 ~ +90