GS360-GS1920 (actuators can also be produced in carbon steel, with painting colours and details on request)
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
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 360 Nm to 960 Nm Mounting flange according to EN ISO 5211; F10 - F12 - F14 - F16 In compliance with EN 15714-3 Rotation angle: 92° (-1°, +91°) Torque: the return torque depends on spring action only notwithstanding the air supply The spring is provided in four different sizes; see table - general catalogue pneumatic actuator GS br>The actuator automatic closing takes place in clockwise direction by means of its springs In the code of standard version GS actuators, it is indicated the size of the springs (6=5,6 bar) followed by the breakaway torque in Nm at 5,6 bar air supply. ATEX version in conformity with directive 2014/34/EU WORKING CONDITION Temperature: from -20°C to +80°C Air supply: 5,6 bar; maximum 8,4 bar Actuating media: filtered dry compressed air, not necessarily lubricated. In case of lubricated air, either non detergent oil, NBR compatible oil, must be used.
DATA SHEET
Code
GS0360416S
GS0480416S
GS0720424S
GS0720416S
GS0960416S
Spare seals
KGGSS223
KGGSS224
KGGSS225
KGGSS225
KGGSS226
Size
GS0360 F10/F12
GS0480 F12/F16
GS0720 F12
GS0720 F14
GS0960 F12/F16
A
565,5
598
736,8
736,8
769,6
A1 (2,8 Bar)
483,5
506
630,8
630,8
645
B
27
36
36
36
46
C x depth
M10x11,5
M12x20
M12x18
M16x18
M12x23
D x depth
M12x11,5
M20x20
-
-
M20x23
ØE
102
125
125
140
125
ØF
125
165
-
-
165
G
19,5
19,5
19,5
19,5
18,5
ØH
156
169
188
188
211
I
22
24
27
27
32
J
138,5
156,3
179,5
179,5
192
K
115
150
130
130
150
L
178
198
216
216
237,7
M
78,5
93,5
101,5
101,5
114,7
N
99,5
104,5
114,5
114,5
123
O
29,5
38,5
38,5
38,5
48,5
P
116
135
160
160
160
Q
-
-
-
-
-
Q2
-
-
-
-
-
ØR
31,8
36,5
41
41
46
S
30
30
30
30
30
S2
-
-
-
-
-
T
148
168
186
186
207,7
T2
-
-
-
-
-
X
150
150
150
150
150
Y
155
168
187
187
209
Z
525,8
565
685
685
718,4
Z1 (2,8 Bar)
435,8
473
559,4
559,4
593,8
Ch
22
22
24
24
24
Ch1 (2,8 Bar)
24
24
30
30
30
Weight (Kg)
45,5
60
82,5
82,5
112
Weight (2,8 Bar) (Kg)
37,5
51
77
77
96
Air (dm³/cycle) (l/cycle)
2
2,7
4,3
4,3
5,6
GS PNEUMATIC ACTUATOR OPERATING DIAGRAM
Drawings on the left = valve in open position Drawings on the right = valve in closed position
Typical air connection diagram The pistons of the standard GS actuators are mounted as shown above. Although the spring force is small, the geometry of the mechanism provides more torque at the end of stroke. When the actuator is in the valve open position and the springs are fully compressed, the end stops can be adjusted with precision. Reverse acting spring return actuators are required when the valve needs to open automatically in the case that the pressurized air or power supply is turned off. In reverse acting actuators, the pistons are inserted into the cylinder in the same way as in the Double Acting version and, due to the force of the spring, the actuator opens normally. Caution. The normal torque performance in the reverse acting version, due to its construction, is different from that of the standard version. Caution. To prevent dust or dirt from being sucked into the actuator chamber during spring action, install a filter on port 2. Port 4 is connected to the middle chamber and, when pressurized, the drive shaft rotates anticlockwise to open. 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.
