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Pneumatic actuator spring return SR type inox precision casting CF8M

  • benefits
  • features
  • dimensions
  • materials
  • specifications
  • accessories
  • documents

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 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

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.
Operating media: compressed filtered air, not necessarily lubricated. In case of lubricated air, either non detergent oil or 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
17Upper shaft support
1Acetalic resin
18Lower shaft support
1Acetalic resin
19Support bush
2Acetalic resin
20External elastic pin of the yoke
1Steel alloy
21Internal elastic pin of the yoke
1Steel alloy
22Piston
2Aluminium alloy
23*Piston's support
4PTFE caric carbo-graphite
24*Dynamic seal
2Polyurethane
25Piston o-ring
2Nitrilic rubber
26Rotative sleeve
2Steel alloy
27Bush
2Steel alloy
28O-ring
1FKM
29O-ring
1FKM
30External support ring
1Acetalic resin
31NAMUR o-ring
2Nitrilic rubber
* Components of spare part kit

CASTING CF8M SPRING RETURN PNEUMATIC ACTUATOR COMPONENTS SIZE: SR30-SR240

MATERIALS SR30-SR240
PosDenominationQ.tyMaterial
1Cylinder1Stainless steel
2*Cap o-ring2Nitrilic rubber
3Shaft1Stainless steel
4Screw6Stainless steel
5Cap2Stainless steel
6Spring loading screw2Stainless steel
7Nut2Stainless steel
8Spring cap2Steel alloy
9Spring2Steel alloy
10*O-ring2Nitrilic rubber
11Seeger1Steel alloy
12Washer1Steel alloy
13Lower support bush1Acetalic resin
14Upper support bush1Acetalic resin
15Lower shaft support1Acetalic resin
16Upper shaft support1Acetalic resin
17Scotch yoke1Steel alloy
18External elastic pin of yoke1Steel alloy
19Internal elastic pin of yoke1Steel alloy
20O-ring upper sealing shaft1FKM
21O-ring low sealing shaft1FKM
22Piston2Aluminium alloy
23*Piston's support4PTFE caric. carbo-graphite
24Dynamic seal2Polyurethane
25Rotative sleeve2Steel alloy
26Bush2Steel alloy
27*Piston o-ring2Nitrilic rubber
28External support o-ring1Acetalic resin
* Components of spare part kit

WORKING PLANE PNEUMATIC ACTUATOR “SR” TYPE

LIMIT SWITCH BOX

MANUAL OVERRIDE WITH HAND WHEEL

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SOLENOID VALVES

ELECTROPNEUMATIC POSITIONER (INTRINSICALLY SAFE)

PNEUMATIC POSITIONER

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ELECTROMECHANICAL LIMIT SWITCHES

PNEUMATIC LIMIT SWITCHES

EXPLOSION PROOF LIMIT SWITCHES II2GD ExdIIC

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OMC 2019
Ravenna (Italy), 27-29 march 2019