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
Up to SIL 3 Certified
Guarantee of the high level of functional safety.
Features:
TECHNICAL FEATURES
Torque from 30 Nm to 1920 Nm.
Mounting flange according to EN ISO 5211
F05 – F07 – 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).
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. 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. (Special versions: high temperature: -20°C +150°C; low temperature: -50°C +60°)
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 or NBR compatible oil, must be used.
Once required the quarter turn pneumatic actuator can be equipped with a manual
handwheel.
The device can be integrated either in Double Acting and Spring Return versions. For the proper functioning of the system and for the mechanical integrity of the device is essential to ensure that the pneumatic actuator is disconnected from the power lines of compressed air before performing any operation using the manual handwheel.
The manual handwheel acts on the transmission of the primary mechanical transmission of the pneumatic actuator and with torques applied to the handwheel according to EN 12570 it releases output torque of equal value of the nominal torque of the actuator.
Dimensions:
SRNV 30 ÷ SRNV 240
| DATA SHEET SRNV 30 ÷ SRNV 240 | ||||||||
| Code | SRNV0030401S | SRNV0030402S | SRNV0053401S | SRNV0060401S | SRNV0090401S | SRNV0120401S | SRNV0180401S | SRNV0240401S |
| Spare Seals | KGGI0016VX | KGGI0016VX | KGGI0060VX | KGGI0018VX | KGGI0019VX | KGGI0020VX | KGGI0021VX | KGGI0022VX |
| Size | SRNV 30 | SRNV 30 | SRNV 53 | SRNV 60 | SRNV 90 | SRNV 120 | SRNV 180 | SRNV 240 |
| ISO | F04 | F05/F07 | F05/F07 | F05/F07 | F07/F10 | F07/F10 | F07/F10 | F10/F12 |
| A | 392,7 | 392,7 | 431,4 | 457,7 | 534,9 | 558,5 | 635 | 700,8 |
| B | 14 | 14 | 17 | 17 | 22 | 22 | 22 | 27 |
| C x depth | M5x8 | M6x9 | M6x9 | M6x9 | M8x12 | M8x12 | M8x12 | M10x15 |
| D x depth | – | M8x12 | M8x12 | M8x12 | M10x15 | M10x15 | M10x15 | M12x18 |
| E | 42 | 50 | 50 | 50 | 70 | 70 | 70 | 102 |
| F | – | 70 | 70 | 70 | 102 | 102 | 102 | 125 |
| G | 13 | 13 | 13 | 13 | 16 | 17 | 19 | 19 |
| H | 33,7 | 33,7 | 40,8 | 42,8 | 52,5 | 56,1 | 58 | 57,4 |
| J | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 16 |
| K | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 16 |
| I | 10 | 10 | 12 | 12 | 15 | 15 | 19 | 19 |
| L | 90,4 | 90,4 | 103,3 | 107 | 137,5 | 141,1 | 148 | 164,9 |
| M | 37,7 | 37,7 | 44,8 | 46,8 | 56,5 | 60,1 | 62 | 72,9 |
| N | 52,7 | 52,7 | 58,5 | 60,2 | 81 | 81 | 86 | 92 |
| O | 16,5 | 16,5 | 19,3 | 19,3 | 24,8 | 24,8 | 24,3 | 29,5 |
| P | 32,7 | 32,7 | 38,5 | 40,2 | 51 | 51 | 56 | 62 |
| Q | 37,7 | 37,7 | 44,8 | 46,8 | 56,5 | 60,1 | 62 | 72,9 |
| R | 14,5 | 14,5 | 16,2 | 18 | 20,2 | 22,5 | 25,5 | 29 |
| S | 20 | 20 | 20 | 20 | 30 | 30 | 30 | 30 |
| T | 70,4 | 70,4 | 83,3 | 87 | 107,5 | 111,1 | 118 | 134,9 |
| U | 129,4 | 129,4 | 152,1 | 169,3 | 196,8 | 204,8 | 237 | 260,2 |
| V | 180 | 180 | 180 | 180 | 220 | 220 | 300 | 300 |
| W (Gas) | 1/8″ | 1/8″ | 1/8″ | 1/8″ | 1/8″ | 1/8″ | 1/8″ | 1/4″ |
| X | 4 | 4 | 4 | 4 | 4 | 4 | 4 | – |
| Y | 137,6 | 137,6 | 154,8 | 163,9 | 183,5 | 199,1 | 220,8 | 236,4 |
| Z | 263,3 | 263,3 | 279,3 | 288,4 | 338,1 | 353,7 | 398 | 440,6 |
| Ch | 13 | 13 | 17 | 17 | 22 | 22 | 22 | 27 |
| N°of turns* | 11 | 11 | 13 | 14 | 16 | 18 | 15 | 16 |
| Weight (Kg) | 3,2 | 3,2 | 4,5 | 5,3 | 6,8 | 9 | 11,7 | 15,2 |
| Air (dm3/cycle) | 0,17 | 0,17 | 0,3 | 0,33 | 0,55 | 0,8 | 1 | 1,5 |
* Theorical n° of turns to close/open starting from neutral position.
| DATA SHEET SRNV 360 ÷ SRNV 960 | |||||||
| Code | SRNV0360401S | SRNV0480401S | SRNV0480402S | SRNV0720401S | SRNV0720402S | SRNV0960401S | SRNV0960402S |
| Spare Seals | KGGI0023VX | KGGI0024VX | KGGI0024VX | KGGI0025VX | KGGI0025VX | KGGI0026VX | KGGI0026VX |
| Size | SRNV 360 | SRNV 480 | SRNV 480 | SRNV 720 | SRNV 720 | SRNV 960 | SRNV 960 |
| ISO | F10/F12 | F10/F12 | F14 | F14 | F12 | F14 | F12/F16 |
| A | 810,1 | 842,4 | 842,4 | 1035,4 | 1035,4 | 1067,7 | 1067,7 |
| B | 27 | 36 | 36 | 36 | 36 | 46 | 46 |
| C x depth | M10x15 | M10x15 | M16x24 | M16x24 | M12x18 | M16x24 | M12x18 |
| D x depth | M12x18 | M12x18 | – | – | – | – | M20x30 |
| E | 102 | 102 | 140 | 140 | 125 | 140 | 125 |
| F | 125 | 125 | – | – | – | – | 165 |
| G | 19,5 | 19,5 | 19,5 | 19,5 | 19,5 | 18,5 | 18,5 |
| H | 61,5 | 78 | 78 | 86,5 | 86,5 | 99,2 | 99,2 |
| J | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| K | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| I | 22 | 24 | 24 | 27 | 27 | 32 | 32 |
| L | 178 | 198 | 198 | 216 | 216 | 237,7 | 237,7 |
| M | 78,5 | 93,5 | 93,5 | 101,5 | 101,5 | 114,7 | 114,7 |
| N | 99,5 | 104,5 | 104,5 | 114,5 | 114,5 | 123 | 123 |
| O | 29,5 | 38,5 | 38,5 | 38,5 | 38,5 | 48,5 | 48,5 |
| P | 69,5 | 74,5 | 74,5 | 84,5 | 84,5 | 93 | 93 |
| Q | 78,5 | 93,5 | 93,5 | 101,5 | 101,5 | 114,7 | 114,7 |
| R | 31,8 | 36,5 | 36,5 | 41 | 41 | 46 | 46 |
| S | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| T | 148 | 168 | 168 | 186 | 186 | 207,7 | 207,7 |
| U | 306,6 | 324,1 | 324,1 | 399 | 399 | 414 | 414 |
| V | 350 | 350 | 350 | 400 | 400 | 400 | 400 |
| W (Gas) | 1/4″ | 1/4″ | 1/4″ | 1/4″ | 1/4″ | 1/4″ | 1/4″ |
| X | – | – | – | – | – | – | – |
| Y | 282,3 | 297,1 | 297,1 | 365,6 | 365,6 | 382,9 | 382,9 |
| Z | 503,5 | 518,3 | 518,3 | 636,4 | 636,4 | 653,7 | 653,7 |
| Ch | 27 | 27 | 27 | 36 | 36 | 36 | 36 |
| N°of turns* | 19 | 20 | 20 | 25 | 25 | 26 | 26 |
| Weight (Kg) | 19,5 | 28,1 | 28,1 | 38,8 | 38,8 | 50,6 | 50,6 |
| Air (dm3/cycle) | 2 | 2,8 | 2,8 | 4,2 | 4,2 | 5,9 | 5,9 |
* Theorical n° of turns to close/open starting from neutral position.
SRNV 1920
| DATA SHEET SRNV 1920 | |
| Code | SRNV1920E1608A |
| Spare Seals | KGGI0230VX |
| Size | SRNV 1920 |
| ISO | F16 |
| N°of turns* | 30 |
| Weight (Kg) | 91 |
| Air (dm3/cycle) | 12,5 |
* Theorical n° of turns to close/open starting from neutral position.
SPRING RETURN ACTUATOR COMPONENTS WITH MANUAL INTEGRATED HANDWHEEL – SIZES: UP TO SRNV960
| MATERIALS UP TO SRNV960 | |||
| Pos | Denomination | Q. | Material |
| 1 | Screw | 1 | Stainless Steel |
| 2* | Washer for roller bearings | 4 | Steel alloy |
| 3* | Roller bearings | 2 | Steel alloy |
| 4 | Flange | 1 | Aluminium alloy |
| 5 | Centering ring (Only for SRNV360) | 1 | Aluminium alloy |
| 6* | O’ring (Only for SRNV360) | 1 | Nitrilic rubber |
| 7* | O’ring | 2 | Nitrilic rubber |
| 8* | O’ring | 1 | Nitrilic rubber |
| 9* | O’ring | 1 | Nitrilic rubber |
| 10* | O’ring | 1 | Nitrilic rubber |
| 11 | Screw | 1 | Stainless Steel |
| 12 | Spring | 1 | Stainless Steel |
| 13 | Cylinder spacer | 1 | Aluminium alloy |
| 14* | O’ring | 1 | Nitrilic rubber |
| 15* | Seal cap | 1 | Brass+Nitrilic rubber |
| 16 | Cap (modified) | 1 | Aluminium alloy |
| 17 | Screw | 4 | Stainless Steel |
| 18* | O’ring | 1 | Nitrilic rubber |
| 19 | Handwheel for maneuever | 1 | Steel alloy |
| 20 | Set screw | 2 | Stainless Steel |
| 21 | Protecting tube | 1 | Aluminium alloy |
| 22 | Trasparent tube | 1 | Polycarbonate |
| 23 | Protecting cap | 1 | Aluminium alloy |
| 24 | Key | 1 | Steel alloy |
| 25 | Spring | 2 | Steel alloy |
| 26* | Rivet | 1 | Steel alloy |
| 27* | Indicator | 1 | Polypropylene |
| 28 | Lead nut maneuever | 1 | Steel alloy |
| 29 | Threaded bush (Only for SRNV240) | 2 | Stainless Steel |
| 30 | Special spring cap | 1 | Aluminium alloy |
| 31 | Pin | 1 | Steel alloy |
| 32 | Screw maneuever | 1 | Steel alloy |
| 33* | Dynamic seal (Piston) | 2 | Polyurethane |
| 34* | Piston o’ring | 2 | Nitrilic rubber |
| 35 | Piston (modified) | 1 | Aluminium alloy |
| 36* | Piston’s support | 4 | P.T.F.E. + 25%C |
| 37 | Bush | 2 | Steel alloy |
| 38 | Rotative sleeve | 2 | Steel alloy |
| 39* | Bounded | 2 | Steel alloy+Nitrilic rubber |
| 40 | Screw | 2 | Stainless Steel |
| 41 | Scotch yoke | 1 | Steel alloy |
| 42 | Shaft support | 1 | Acetalic resin |
| 43 | External elastic pin of the yoke | 1 | Steel alloy |
| 44 | Internal elastic pin of the yoke | 1 | Steel alloy |
| 45 | Shaft | 1 | Stainless Steel |
| 46 | Support bush | 1 | Acetalic resin |
| 47 | Lower sealing shaft | 1 | FKM |
| 48 | Cylinder | 1 | Aluminium alloy |
| 49 | Upper sealing shaft | 1 | FKM |
| 50 | External support ring | 1 | Acetalic resin |
| 51 | Washer | 1 | Stainless Steel |
| 52 | Seeger | 1 | Stainless Steel |
| 53 | Piston (Standard) | 1 | Aluminium alloy |
| 54 | Spring loading screw | 1 | Stainless Steel |
| 55 | Spring cap (Standard) | 1 | Steel alloy or Aluminium alloy |
| 56* | Cap o’ring | 1 | Nitrilic rubber |
| 57 | Cap (Standard) | 1 | Aluminium alloy |
| 58 | Screw | 4 | Stainless Steel |
| 59* | O’ring | 1 | Nitrilic rubber |
| 60 | Nut | 1 | Aluminium alloy |
| 61 | Insert for o’ring (Only for SRNV53-120-180-360) | 1 | Stainless Steel |
| * Components of spare part kit | |||
SPRING RETURN ACTUATOR COMPONENTS WITH MANUAL INTEGRATED HANDWHEEL – SIZE: SRNV1920
| MATERIALS SRNV1920 | |||
| Pos | Denomination | Q.ty | Material |
| 1 | Cylinder | 1 | Aluminium alloy |
| 2 | Cylinder | 1 | Aluminium alloy |
| 3 | Cylinder | 1 | Aluminium alloy |
| 4 | Cap (Standard) | 1 | Aluminium alloy |
| 5 | Internal spring support | 1 | Aluminium alloy |
| 6 | External spring support | 1 | Aluminium alloy |
| 7 | Spring loading screw | 1 | Stainless Steel |
| 8* | O’ring | 1 | Nitrilic rubber |
| 9 | Cap Nut | 1 | Stainless Steel |
| 10 | O’ring | 1 | Nitrilic rubber |
| 11 | O’ring | 1 | Nitrilic rubber |
| 12 | Nut | 1 | Stainless Steel |
| 13 | External spring | 2 | Steel alloy |
| 14 | Internal spring | 2 | Steel alloy |
| 15 | Piston (Standard) | 1 | Aluminium alloy |
| 16 | Bush | 2 | Steel alloy |
| 17* | Piston’s support | 4 | Acetalic resin |
| 18 | Pin | 2 | Steel alloy |
| 19 | Rotative sleeve | 2 | Steel alloy |
| 20 | Scotch yoke | 1 | Steel alloy |
| 21 | Shaft | 1 | Stainless Steel |
| 22 | Support bush | 1 | Acetalic resin |
| 23 | Shaft support | 1 | Acetalic resin |
| 24* | Cap o’ring | 1 | Nitrilic rubber |
| 25* | Bearing (shaft bottom) | 1 | Acetalic resin |
| 26* | Bearing (shaft top) | 1 | Acetalic resin |
| 27* | External support ring | 1 | Acetalic resin |
| 28 | Washer | 1 | Stainless Steel |
| 29* | O’ring | 3 | Nitrilic rubber |
| 30 | Seeger | 1 | Stainless Steel |
| 31 | Screw | 6 | Stainless Steel |
| 32* | Lower sealing shaft | 1 | FKM |
| 33* | Piston o’ring | 2 | Nitrilic rubber |
| 34* | Upper sealing shaft | 1 | FKM |
| 35* | O’ring | 2 | Nitrilic rubber |
| 36* | Bearing (piston head) | 2 | P.T.F.E. Carbo-Graphite filled |
| 37 | Nut | 12 | Stainless Steel |
| 38 | Piston (modified) | 1 | Aluminium alloy |
| 39* | Bearings (Handwheel) | 2 | Poliuretano |
| 40 | Cap (modified) | 1 | Aluminium alloy |
| 41 | Lead nut maneuever | 1 | Steel alloy |
| 42* | Indicator | 1 | Polypropylene |
| 43 | Handwheel for maneuever | 1 | Steel alloy |
| 44 | Flange | 1 | Aluminium alloy |
| 45* | Thrust bearings | 2 | Steel alloy |
| 46 | Screw | 8 | Stainless Steel |
| 47 | Screw | 1 | Stainless Steel |
| 48 | Washer | 1 | Stainless Steel |
| 49 | Closing fork | 1 | Aluminium alloy |
| 50 | Fork support | 1 | Aluminium alloy |
| 51 | Lock wheel | 1 | Stainless Steel |
| 52 | Protecting cap | 1 | Aluminium alloy |
| 53 | Screw | 3 | Stainless Steel |
| 54* | Rivet | 1 | Stainless Steel |
| 55 | Key | 1 | Stainless Steel |
| 56 | Screw | 6 | Steel alloy |
| 57* | O’ring | 1 | Nitrilic rubber |
| 58* | O’ring | 1 | Nitrilic rubber |
| 59* | O’ring | 1 | Nitrilic rubber |
| 60 | Screw | 2 | Stainless Steel |
| 61* | Bounded | 2 | Steel alloy+Nitrilic rubber |
| 62* | O’ring | 1 | Nitrilic rubber |
| 63* | O’ring | 1 | Nitrilic rubber |
| 64* | Plug | 2 | P.T.F.E |
| 65 | Nut | 1 | Stainless Steel |
| 66 | Screw maneuever | 1 | Stainless Steel |
| 67 | Protecting removable tube | 1 | Aluminium alloy |
| 68 | Pin | 1 | Stainless Steel |
| 69 | Special spring cap | 1 | Steel alloy |
| 70* | O’ring | 1 | Nitrilic rubber |
| 71* | O’ring | 1 | Nitrilic rubber |
| 72 | Screw | 1 | Stainless Steel |
| 73 | Safety screw | 1 | Stainless Steel |
| 74 | Protecting tube | 1 | Aluminium alloy |
| * Components of spare part kit | |||
Specifications:
Working plane pneumatic actuator with integrated handwheel
WORKING PLANE PNEUMATIC ACTUATOR “SR” TYPE
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