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 DAN15, 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 240 Nm. Mounting flange according to ISO 5211; F03 - F05 - F07 - F10. 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 SR). The code numbers after the letters SR, always correspond to the breakaway torque in Nm by 5,6 bar air supply. The actuator automatic closing takes place in clockwise direction by means of its springs. Sizes from SR 30 direct connection with NAMUR solenoid valve. Size SR15 can be provided with NAMUR plate on request ATEX version in conformity with directive 2014/34/EU. Please add YX at the end of the code for ATEX version.
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.
SR 15
SR 30 ÷ SR 240
DATA SHEET
Code
SR015516S
SR030516S
SR060516S
SR120516S
SR240516S
Spare seals
KGXI0114
KGXI0116
KGXI0118
KGXI0120
KGXI0122
Size
SR 15 F03
SR 30 F03-F05
SR 60 F05-F07
SR 120 F05-F07
SR 240 F07-F10
L mm.
134,6
158,4
192,9
246,8
298,4
L1 mm.
194,2
217,9
287,5
341,2
421
L2 mm.
224
246,2
316,5
376,2
463,9
A mm.
80,4
92,5
116,5
136,4
160
D mm.
32,7
37,7
46,2
56,2
68
E mm.
9
11
14
17
22
F mm.
2
2
3
3
3
Ch. G mm.
9
10
12
15
19
H mm.
10
13
13
17
19
N mm.
23
20
30
30
30
X mm.
68
80,3
94,4
117
139,7
J mm.
10,2
12,2
16,3
19,3
24,3
ØK mm.
25
25
35
35
55
Q mm.
50
50
80
80
80
P mm.
25
25
30
30
30
ØU mm.
-
50
70
70
102
ØV mm.
36
36
50
50
70
Y x prof. depth mm.
M5x9
M5x9
M6x11
M6x11
M8x13
W x prof. depth mm.
-
M6x11
M8x15
M8x13
M10x22
air dm3/cycle
0,086
0,16
0,33
0,7
1,38
weight Kg.
1,6
2,4
4,5
7,6
12,9
CASTING CF8M SPRING RETURN PNEUMATIC ACTUATOR COMPONENTS SIZE: SR15
MATERIALS SR15
Pos
Denomination
Q.ty
Material
1
Cylinder
1
Stainless steel
2*
Cap o-ring
2
Nitrilic rubber
3
Plate (optional)
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
Nut
2
Stainless steel
9
Spring loading screw
2
Stainless steel
10
Spring cap
2
Steel alloy
11
Spring
2
Steel alloy
12*
O-ring
2
Nitrilic rubber
13
Screw
4
Stainless steel
14
Seeger
1
Stainless steel
15
Washer
1
Stainless steel
16
Scotch yoke
1
Steel alloy
17
Upper shaft support
1
Acetalic resin
18
Lower shaft support
1
Acetalic resin
19
Support bush
2
Acetalic resin
20
External elastic pin of the yoke
1
Steel alloy
21
Internal elastic pin of the yoke
1
Steel alloy
22
Piston
2
Aluminium alloy
23*
Piston's support
4
P.T.F.E. carbo-graphite filled
24*
Dynamic seal
2
Polyurethane
25*
Piston o-ring
2
Nitrilic rubber
26
Rotative sleeve
2
Steel alloy
27
Bush
2
Steel alloy
28
O-ring
1
FKM
29
O-ring
1
FKM
30
External support ring
1
Acetalic resin
31
NAMUR o-ring
2
Nitrilic rubber
* Components of spare part kit
CASTING CF8M SPRING RETURN PNEUMATIC ACTUATOR COMPONENTS SIZE: SR30-SR240
