GD (double acting) pneumatic actuator CF8M (microcast stainless steel)

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GD15-GD480

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 15 Nm to 480 Nm
Mounting flange according to ISO 5211; F03 - F05 - F07 - F10
In compliance with EN 15714-3
Rotation angle: 92° (-1°, +91°)
Torque: directly proportional to the air supply (see table - general catalogue pneumatic actuator GD)
In the code of standard version GD actuators, it is indicated the breakaway torque in Nm at 5,6 bar air supply.
Sizes from GD 60 direct connection with NAMUR solenoid valve
Sizes GD15 - GD30 can be provided with NAMUR plate on request
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 lubrication use non-detergent oil compatible with the internal materials of the actuator version you are using

GD15 ÷ GD30

GD60 ÷ GD480

DATA SHEET

Code
GD015516S
GD030516S
GD060516S
GD120516S
GD240516S
GD480516S

Spare seals
KGGSS112
KGGSS114
KGGSS116
KGGSS118
KGGSS120
KGGSS122

Size
GD15 F03
GD30 F03
GD60 F03-F05
GD120 F05-F07
GD240 F05-F07
GD480 F07-F10

L mm.
120
134,6
158,4
192,9
246,8
298,4

A mm.
72,4
80,4
92,5
116,5
136,4
160

B mm.
13,4
11,6
-
-
-
-

C mm.
12
13
-
-
-
-

D mm.
28,2
32,7
37,7
46,2
56,2
68

E mm.
9
9
11
14
17
22

F mm.
2
2
2
3
3
3

Ch. G mm.
8
9
10
12
15
19

H mm.
10
10
13
13
17
19

N mm.
23
23
20
30
30
30

X mm.
59
68
80,3
94,4
117
139,7

J mm.
10,2
10,2
12,2
16,3
19,3
24,3

ØK mm.
25
25
25
35
35
55

Q mm.
50
50
50
80
80
80

P mm.
25
25
25
30
30
30

ØU mm.
-
-
50
70
70
102

ØV mm.
36
36
36
50
50
70

Y x prof. depth mm.
M5x9
M5x9
M5x9
M6x11
M6x11
M8x13

W x prof. depth mm.
-
-
M6x11
M8x15
M8x13
M10x22

air dm³/cycle
0,08
0,16
0,30
0,61
1,26
2,46

weight Kg.
0,8
1,2
1,8
3,3
5,6
9,5

CASTING CF8M DOUBLE ACTING PNEUMATIC ACTUATOR COMPONENTS SIZE: GD 15-GD 30

  MATERIALS
Pos
Denomination
Q.ty
Material
1
Cylinder
1
Stainless steel CF8M
2*
Cap o-ring
2
Nitrilic rubber
3
Plate
1
Stainless steel
4
NAMUR plate
1
Stainless steel
5
Shaft
1
Stainless steel
6
Screw
6
Stainless steel
7
Cap
2
Stainless steel
8
Screw (optional)
4
Stainless steel
9
Seeger
1
Stainless steel
10
Washer
1
Stainless steel
11
Scotch yoke
1
Steel alloy
12
External elastic pin of the yoke
1
Steel alloy
13
Internal elastic pin of the yoke
1
Steel alloy
14
Upper shaft support
1
Acetalic resins
15
Support bush
2
Acetalic resins
16
Lower shaft support
1
Acetalic resins
17*
O-ring (upper sealing shaft)
1
FKM
18*
O-ring (low sealing shaft)
1
FKM
19
Piston
2
Aluminium alloy
20*
Piston's support
4
PTFE Carbo-graphite filled
21*
Dynamic seal (piston)
2
Polyurethane
22*
Piston o-ring
2
Nitrilic rubber
23
Rotative sleeve
2
Steel alloy
24
Bush
2
Steel alloy
25*
External support ring
1
Acetalic resins
26
O-ring (optional)
2
Nitrilic rubber
* Components of spare part kit

CASTING CF8M DOUBLE ACTING PNEUMATIC ACTUATOR COMPONENTS SIZE: GD60-GD480

 MATERIALS
Pos
Denomination
Q.ty
Material
1
Cylinder
1
Stainless steel
2*
Cap o-ring
2
Nitrilic rubber
3
Shaft
1
Stainless steel
4
Screw
6
Stainless steel
5
Cap
2
Stainless steel
6
Seeger
1
Stainless steel
7
Washer
1
Stainless steel
8
Lower shaft support
1
Acetalic resins
9
Upper shaft support
1
Acetalic resins
10
Scotch yoke
1
Steel alloy
11*
O-ring (low sealing shaft)
1
FKM
12
External elastic pin of the yoke
1
Steel alloy
13
Internal elastic pin of yoke
1
Steel alloy
14
Piston
2
LAluminium alloy
15*
Piston's support
4
PTFE carbo-graphite filled
16*
Dynamic seal (piston)
2
Polyurethane
17
Rotative sleeve
2
Steel alloy
18
Bush
2
Steel alloy
19*
Piston o-ring
2
Nitrilic rubber
20
Suwer support bush
1
Acetalic resins
21
Upper support bush
1
Acetalic resins
22*
O-ring (upper sealing shaft)
1
FKM
23*
External support ring
1
Acetalic resins
*Components of spare part kit

GD PNEUMATIC ACTUATOR OPERATING DIAGRAM

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.