1.Energized and self-lubricated strips Less friction between piston and cylinder It prevents the bonding of the seal to the cylinder even after long periods of inactivity
2.Slots, bushes and pins made by steel with hardness higher than 50 HRC Higher resistance to the forces inside the actuator
3.Rolling friction between piston and slot Less friction
4.Scotch yoke with rolling friction (transforming rotary motion into linear motion using piston and shaft without teeths/gears) Reduced friction between piston and shaft with consequently less wear on the relevant parts Empowered Breakaway Torque (BTO & BTC) Smaller volume/size than rack and pinion actuators (with the same torque) therefore less space required for installation Less weight than the rack and pinion (-30% kg / Nm), with consequent savings on the construction sizing of the plant/equipment Lower air consumption compared to the rack and pinion actuators (-40% air cm3/Nm for Double Acting and -20% air cm3/Nm for Spring Return) therefore less load on the compressor or the possibility of using a smaller compressor's size. 5.Rolled cylinder Less wear of the energized ties thanks to the low roughness of the surface (0.15 micron Ra)
From sizes bigger than GD15, NAMUR interface for solenoid valve is already integrated. No need for extra plate.
100% in- house manufacturing process technology Maximum control and accuracy in all the stages of the manufacturing process
ATEX Certificate Installation is allowed in a potential explosive environment
Up to SIL 3 Certified Guarantee of the high level of functional safety.
TECHNICAL FEATURES Torque from 8 Nm to 8000 Nm Mounting flange according to EN ISO 5211 F03 - F04 - F05 - F07 - F10 - F12 - F14 - F16 - F25 In accordance with EN 15714-3 Rotation angle: 92° (-1°, +91°) Torque: directly proportional to the air supply (see table) In the code of standard version GD actuators, it is indicated the breakaway torque in Nm at 5,6 bar air supply. ATEX version in conformity with directive 2014/34/EU
WORKING CONDITIONS Temperature: from -20°C to +80°C. (Special versions: high temperature: -20°C +150°C; low temperature: -50°C +60°) Air supply: 5,6 bar; maximum 8,4 bar (7 bar for GD8000) Actuating media: filtered dry compressed air, not necessarily lubricated In case of lubricated air, either non detergent oil or NBR compatible oil, must be used
GD08
GD15 - GD1920
GD2880
GD3840
GD5760
GD8000
Double acting pneumatic actuator size GD08 (Nm)
DATA SHEET GD08 (Nm)
Code
GD008401S
Weight [Kg]
0,29
Air volume [dm3/cycle]
0,034
Spare seals
KGGI0010
Double acting pneumatic actuator sizes from GD15 (Nm) to GD1920 (Nm)
Drawings on the left = valve in open position Drawings on the right = valve in closed position
Typical air connection diagram Port 2 connects to the side chambers of the cylinder: by supplying pressurized air to port 2, the drive shaft of the Standard Double Acting actuator rotates anticlockwise to open. Port 4 is instead connected to the middle chamber: when it is pressurized, the shaft rotates clockwise to close. The remote control to operate the actuator must be performed by connecting the solenoid valve firectly to the standard interface of the VDE/VDI 3845 NAMUR actuator, or by means of pipes screwed onto the ports marked with numbers 2 and 4 (connected to a separate electrical cabinet). In accordance with the international standard ISO 5599-2, the position, location, orientation and shape of the actuator air port connections must be clearly identified and marketed using numbers 2 and 4.
LIMIT SWITCH BOX
MANUAL OVERRIDE WITH HAND WHEEL
NAMUR SOLENOID VALVES
SOLENOID VALVES
ELECTROPNEUMATIC POSITIONER (INTRINSICALLY SAFE)
PNEUMATIC POSITIONER
PROXIMITY LIMIT SWITCHES
ELECTROMECHANICAL LIMIT SWITCHES
PNEUMATIC LIMIT SWITCHES
EXPLOSION PROOF LIMIT SWITCHES II2GD ExdIIC
For more information check the ACTUATECH Accessories Catalogue.
