Keystone Spring Return Pneumatic Actuator Ke790

Pneumatic actuators are devices that convert the energy of compressed air or gas into a mechanical motion that regulates one or more final control elements.
Designation Value
Maximum operating pressure 16 bar
Maximum operating temperature (�°C) 120�°C
Cylinder starts operating pressure 1 bar
Cylinder completely opening pressure 3 bar
Bore 60 mm
Strokes 40 mm
Operating load 630 N
Precompression load 300 N

keystone Electric actuator E051 is the electric actuator for quarter-turn valves.keystone Electric actuator E051 features:Voltage Ratings100 to 240 Volts DC or AC single phase,50/60 Hz. +/- 10% voltage toleranceWorking TemperatureStandard Range: -40F to 140F[-40C to 60C]Optional Ranges Covering From:-40F to 158F[-40C to 70C]Environmental ProtectionStandard Weather Tight EnclosureNEMA 4/4X/6 according toNEMA ICS6/NEMA 250IP68 according to EN 60529Standard unit is CSA (C-US)Optional Explosion Proof EnclosureNEMA 4/4X/6 according to NEMAICS6/NEMA 250IP68 according to EN 60529FM/CSA (C-US) NEC 505 (Class 1,Zones 1 & 2)NEC 500 (Class 1, Div. 2)
At the same time, we still can offer the items as below:
Keyston Electric Actuator KE EPI2-E013A0
Keyston Electric Actuator KE EPI2-E006A
Keystone double acting and spring return MRP
Keystone Pneumatic Actuators MRA
Keystone Electric Actuator EPI 2
Keystone Pneumatic Actuator 79U
Keystone Pneumatic Actuator MRP
keystone Electric actuator E171
keystone Electric actuator E091
keystone Electric actuator E025
keystone Electric actuator E013
keystone Electric actuator E006

Actuator Model AT pneumatic actuator
Actuator Material Aluminium Alloy
Action double- acting, single acting normally closed, single acting normally open
Rotary Angle: 90
Output Torque : 6.2NM-4944NM
Cylinder  Size 32mm-270mm
Air Pressure 4~8bar
Working Temperature -20C~+80C
Standard GB/ISO/DIN

Full conformance to the latest specification:iso5211, din3337, vd/vde3845and namur.
The extruding high intensity aluminum body possess a honed internal surface coated with hone anode oxygenation for long life, low coefficient of friction and swift performance.
Excellent, compact and modernized construction along with multi-specifications make the selection both economic and beneficial.
All acting surfaces adopt high quality bearings, resulting in low friction, high cycle life and no noise.
The two independent external travel stop adjustment bolts can easily and precisely adjust both open and close directions.
Same outline actuator have the functional modes of double acting and spring, and the spring return has the normal-open and normal-close styles.
Multi-function position indicator with numer is convenient for mounting accessories.
Pre-compressed load spring is convenient for safe mounting and teardown procedures.
Die-casting aluminum pistons and end caps have high intensity and light weight.
Different o-rings materials are available for high and low temperature.
According to different demands we can offer multi-travel rotations (e.G. ) and three
Position actuators.
Solenoid valves are easily mounted without any connecting plank.

HIC Series pneumatic actuator
Design
HIC Series pneumatic actuators incorporate latest mechanical technology, materials available and our patented technology, through designing, developing, testing and engineering application, we have obtained a high grade product with the characteristics of reliability, high performance, long cycle life, large adjustment, and highest levels of corrosion protection, wide selection of model with easy and economy.

Structure
1. Indicator
Position indicator with NAMUR is convenient for mounting accessories such as limit switch box, positioner and so on.
2. Pinion
The pinion is high-precision and integrative, made from nickel alloy steel, full conform to the latest standards of ISO5211, DIN3337, NAMUR. The dimensions can be customized and the stainless steel is available.
3. Actuator body
According to the different requirements, the extruded aluminum alloy ASTM6005 body can be treated with hard anodized, powder polyester painted (different colors is available such as blue, orange, yellow etc.) or PTFE or nickel plated.
4. End caps
Die-casting aluminum powder polyester painted in different colors, PTFE or nickel plated.
5. Pistons
The twin rack pistons are made from die-casting aluminum treated with hard anodized or made from cast steel with galvanization .Symmetric mounting position, long cycle life and fast operation, reversing rotation by simply inverting the pistons.
6. Travel adjustment
External stroke adjustment screw can adjust í+4ípat the position of 90íp.
7. High performance springs
Preloaded coating springs are made from the high quality material for resistant to corrosion and longer cycle life, which can be demounted safely and conveniently to satisfy different requirements of torque by changing quantity of springs.
8. Bearings & guides
Made from low friction, long-life compound material, avoid the direct contact between metals. The maintenance and replacement are easy and convenient.
9. O-rings
NBR rubber o-rings provide trouble-free operation at standard temperature ranges. For high and low temperature, viton or silicone is used.
Features
í± Extruded aluminum ASTM6005 body with both internal and external corrosion protection having honed cylinder surface for longer life and low coefficient of friction.
í±Dual piston rack and pinion design for compact construction, symmetric mounting position, high-cycle life and fast operation, reverse rotation can be accomplished in the field by simply inverting the pistons.
í±Multiple bearings and guides on racks and pistons, low friction, high cycle life and prevent shaft blowout.
í±Modular preloaded spring cartridge design, with coated spring for simple versatile range, greater safely and corrosion resistance, longer cycle life.
í±Die-casting teeth on piston and pinion for accurate low backlash make rack and pinion engagement with maximum efficiency, having long term corrosion resistance with stainless steel fasteners.
í±Full conformance to the latest specifications:ISO5211, DIN3337 and NAMUR or product interchangeability and easy mounting of solenoids, limit switches and other accessories.

Extruded aluminum astm6005 body with bath internal and external corrosion protection having honed cylinder surface for longer life and low coefficient of friction.
Dual piston rack and pinion design for compact construction, symmetric mounting position, high-cycle fife and fast operation, reverse rotation can be accomplished in the field by simply inverting the pistons.
Multiple bearings and guides on racks and pistons, low friction, high cycle life and prevent shaft blowout.
Modular preloaded spring cartridge design, with coatedspring for simple versatile range, greater safely and corrosion resistance, longer cycle life.
Fully machined teeth on piston and pinion for accurate low backlash rack and pinion engagement, maximum efficlency. Stalnless steel fasteners for long term corroslon resistance
Full conformance to the latest specifications: is05211, din 3337 and namur or product inter changeahility and easy mounting of solenoids, limit switches and other aocessodes.

Features:Butterfly Valve with Air Actuator, Spring Return, 6".Keystone Series 221 Butterfly Valves with Keystone Air Actuators. Double acting style (air to open and close). Valves include cast iron bodies, EPDM seats, 316SS stainless discs and 416 stainless stems. Valves are rated to 250 PSI and 250 Deg. F. Air actuators are direct mount (no brackets) and include 1/4" FPT air port connections.Designed to open/close valves at 80 PSI in most applications, 150 PSI maximum.
At the same time, we still can offer the items as below:
Keystone Air Actuated Butterfly Valve DUA906-30KSR
Keystone Air Actuated Butterfly Valve DUA906-20M
Keystone Air Actuated Butterfly Valve DUA906-60M
Keystone Air Actuated Butterfly Valve DUA906-30M
Keystone Air Actuated Butterfly Valve DUA906-40K
Keystone Air Actuated Butterfly Valve DUA906-30K
Keystone Air Actuated Butterfly Valve DUA906-60KSR
Keystone Air Actuated Butterfly Valve DUA906-40KSR
Keystone Air Actuated Butterfly Valve DUA906-20KSR

Linear Actuator Features & Specialities
Double Acting, Single Acting
Compact and Rigid Light weight construction
Torque Range - 10 Nm to 30,000 Nm
Supply Pressure - 4.5 Bar to 9 Bar
Certifications - CE, ATex, SIL2
With Position Indicator
DIN / ISO Mounting as standard
Quick Operation - Best suitable for quick motion requirements and other applications
Maintenance free
Easy spares availability

Rotary Actuator Features & Specialities
Double Acting, Single Acting, 180 Deg and Quarter Turn actuators
Compact and Rigid Light weight construction
Torque Range - 10 Nm to 20,000 Nm
Supply Pressure - 4.5 Bar to 9 Bar
Certifications - CE, ATex, SIL2
Optional - Manual Over ride, Positioner, Limit switch, 180 Deg Rotation, etc.
With Position Indicator
DIN / ISO Mounting as standard
Single Moving internal part, efficient torque transmission with minimum torque loss
Quick Operation - Best suitable for emergency shutdown valves and other applications
Maintenance free
Easy spares availability
ONE-to-ONE fitting, no mounting brackets or fabricated attachments required