Keystone Pneumatic Actuators

Brand: Keystone Condition: Used Model: 79U-065U-C000-A00 Type: Actuator Weight: 45 lbs Dimensions: 14 X 11 X 11 SKU: B253163 Category: Valves · Replacement Parts Additional Notes: PNEUMATIC DOUBLE ACTING

Narvik-Yarway covers requirements for desuperheaters, pneumatic actuators, strainers with a wide range of models, sizes and materials to satisfy all the specifications of the power-pulp & paper industry and process gas applications Features & Benefits: Fabricated construction Completely assembled, including spare parts, on stock Model: 20 – 55 for a stroke of 55 mm Max. thrust: 11 kN (48,800 lbf) Model: 20 – 90 for a stroke of 90 mm Max. thrust: 10 kN (44,400 lbf) Both direct acting, stem extends with air pressure Max. air supply: 6.0 barg Air connection: 1/2” NPT female Materials: - Carbon steel Epoxy coating: - Primer (60-80 µm) – Top coat (50-70 µm) – Color RAL 5021

Compact and light-weight actuator, equipped with a guide rod for smooth operation and extended durability Features & Benefits: Double acting and single acting type are of the same shape and dimension Double rack and pinion gear construction produces a smooth uniform stroke throughout the whole range Guide rod eliminates side loading of the piston for smooth actuation and greater durability Double rack design allows for a larger cylinder bore and shorter piston stroke, resulting in a more compact unit and high torque ISO 5211 mounting pattern to provide the greatest flexibility for valve adaptation Air supply port (piping seat) and stem top conform to NAMUR standards for simple and direct mounting of accessories Interchangeable spring return sets according to each operating pressure/torque: Standard : AK-S 0.4 to 0.7MPa Low pressure type : AK-L 0.3 to 0.7MPa High torque type : AK-H 0.5 to 0.7MPa

Pneumatic actuator for large-sized valves, ideally suited for control valves and remotely controlling process lines  Features & Benefits: Scotch yoke construction ideal for large sized valves Two pistons in double cylinder type produces a high output torque while maintaining a relatively compact and light-weight design Stem top conforms to NAMUR standards for simple and direct mounting of accessories Separation of air chamber (cylinder) from mechanism (body) prevents air loss Two spring return sets according to each operating pressure: Standard:AW(N)-S 0.4 to 0.7MPa Low pressure type: AW(N)-L 0.3 to 0.4MPa

A comprehensive range of pneumatic actuators, providing compact, reliable and economical powered operation for all types of quarter-turn valves. Features & Benefits: Direct mounting to all Keystone Butterfly Valves. Double Rack & Pinion design nullifies sideloads on the pinion shaft, minimizing bearing wear and extending life. Double Acting or Spring Return models utilize the same compact body design. Aluminum body, hard anodized externally and internally, for corrosion and wear resistance. Electrostatic powder coating (ESPC) finish, external on body, internal and external on end caps, protects against corrosive environments. Adjustable travel stops. Safe end cover bolting requiring no special tools. Anti-blowout drive pinion. Over travel adjustment (at each end) +5°. Under travel adjustment (at each end) -10°. Easy field conversion between DA and SR models. Technical Data  Torque output range:  Double Acting 238 - 18180 lbs in  Spring Return 132 - 12515 lbs in  Operating medium: Air (dry or lubricated)  Travel adjustment:  Over travel (at each end) +5°  Under travel (at each end) -10°&n

The F257-065 is a quarter turn style pneumatic actuator available in direct acting and spring return option.    Features & Benefits: Simple robust construction. Maintenance friendly with semi-serviceable design. Drives from 1" to 2.5" [25 mm to 65 mm] butterfly valves. Easy-fit mounting kit allows actuators to be fitted without plant shutdowns. Available in direct acting and spring return configuration. Fitted with either High Visibility Indicator or F783 Control Head. General Applications:  Brewery  Dairy  Winery  Cannery  Food processing  Pharmaceutical  Chemical  Beverage  Technical Data  Air Supply:  Min: 550 kPa (80 psi)  Max: 800 kPa (115 psi)

Spring Return and Double Acting Pneumatic Quarter-Turn Actuators for Output Torques to 27,624 lb.in. Features & Benefits: Compact rack and pinion design utilizes the whole piston area to develop output torque. Pistons with integral rack drive reduce the number of dynamic seals, minimizing air leakage. Double pistons nullify sideloads on the pinion shaft, minimizing bearing wear and extending life. Internal air porting eliminates external tubing. Hard anodized aluminum body with external electrostatic powder coating (ESPC) finish protects against corrosive environments. Female output drive enables direct mounting of most Keystone valves, eliminating special adaptation connections and assuring correct alignment. Bottom entry pinion shaft simplifies assembly and provides anti-blowout feature. Anti-friction piston pads ensure no metal-to-metal contact, providing smooth operation. Ideal for modulating or on/off control applications. Adjustable travel stops standard in both directions on sizes 065 to 181. An extensive range of standard accessories are available for direct mounting. Solenoid valves Limit switchboxes Positioners Declutchable

Stainless steel vertical actuator with pneumatic quarter-turn operation.  Features & Benefits: Keystone technology. Fast and reliable quarter turn operation makes it suitable for use with butterfly, ball and plug valves. Only one external air supply line is required with our internally air ported actuator, when used with the Keystone control head. Constructed from corrosion resistant materials. Designed with an optimized piston helix to provide maximum torque output. Double acting or spring return models available. Fully contained spring module, to help ensure safety to maintenance personnel. Maintenance friendly. Site repairable. Modular bridge clamp mounting for easy actuator change-out. General Applications:  Brewery  Dairy  Winery  Cannery  Food processing  Pharmaceutical  Chemical  Beverage  Technical Data  Air Supply:  Double Acting (DA) 300 kPa to 800 kPa max. (3 bar to 8 bar)  Spring Return (SR) 550 kPa to 800 kPa max. (5.5 bar to 8 bar)

Applicationt: actuator Production Description: features: Pneumatic Rotary Actuator, Spring Return, for 6" Valves.Mount directly to KEYSTONE Butterfly valves (sold separately)  to provide remote operation. No brackets are required. Spring Return Models close automatically when air is shut off. 1/4" FPT  air connections. Rated supply pressure is 120 PSI (150 PSI Max.). Sleeve adapters included.Get more information please contact us. At the same time, we still can offer the items as below: Keystone Spring Return Pneumatic Actuator KE790-300S Keystone Spring Return Pneumatic Actuator KE790-200S  Keystone Pneumatic Actuator MRP  Keystone Double Acting Pneumatic Actuator KE790-300K Keystone Pneumatic Actuators MRA Keystone&