ISO 001 AP SERIES FEATURES Our newly designed D Series Pneumatic Actuator is available in double-acting and spring-return based on our innovative and patented technology. Features a top mount multi-function indicator and open-close stop adjustment as standard. In addition, state -of-the-art engineering has allowed us to reduce the size of the actuator without losing any torque. The features and characteristics of the actuator have kept pace with th generation pneumatic actuators of the world. FIGURE1. APD SERIES 3 FACTORY ACCREDITED: 2 ATEX 1 5 NEMA,X 1. Indicator The position indicator Namur is convenient for mounting accessories such as limit switch box, positioner etc. 2. Pinion The pinion is high-precision made from nickel alloy steel, fully conforming to the latest standards of ISO52, DIN333 and Namur. The dimensions can be customized and stainless steel option is available. 3. Actuator Body According to the different requirements, the extruded aluminium alloy ASTM005 body is treated with hard anodized, powder polyester painted (different colors are available such as blue, orange, yellow etc) PTFE or nickel plated is available on request.. End Caps Die-casting aluminium powder polyester painted in different colors, PTFE or nickel plated option. 5. Pistons The twin rack pistons are made from die-casting aluminium treated with hard anodization or can be made from cast steel with galvanization. The symmetrical mounting position, long life-cycle and fast operation allows you to reverse the rotation simply by inverting the pistons.. Travel Adjustments The two independent external travel stop adjustment bolts can adjust ±5 at both open and close directions easily and precisely. (APD Series only). High Performance Springs Pre-loaded coated springs are made from high quality material for resistance to corrosion and longer life-cycle which can be demounted safely and conveniently to satisfy different requirements of torque by changing the number of springs.. Bearings & guides Made from low friction, long-life compound material to avoid the direct contact between metals. The maintenance and replacements are easy and convenient.. O-Rings NBR rubber o-rings provide trouble-free operation at standard temperature. Viton or silicone is used on high temperature applications.. page 1 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 BASIC OPERATING PRINCIPLE DOUBLE ACTING Standard Rotation: Air to port A forces the pistons outwards, causing the pinion to turn counterclockwise while the air is being exhausted from port B. Air to port B forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from port A. SPRING RETURN Standard Rotation: Air to port A forces the pistons outwards, causing the springs to compress, the pinion turns counterclockwise while air is being exhausted from port B. Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns clockwise while air is being exhausted from port A. page 2 Reverse Rotation: Air to port A forces the pistons outwards, causing the pinion to turn clockwise while the air is being exhausted from port B. Air to port B forces the pistons inwards, causing the pinion to turn counterclockwise while the air is being exhausted from port A. Reverse Rotation: Air to port A forces the pistons outwards, causing the springs to compress, the pinion turns clockwise while air is being exhausted from port B. Loss of air pressure on port A, the stored energy in the springs forces the pistons inwards. The pinion turns counterclockwise while air is being exhausted from port A. AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 AP SERIES MATERIAL SPECIFICATIONS & PARTS LIST NO. DESCRIPTION MATERIAL QTY DESCRIPTION MATERIAL QTY 1 Indicator screw SS30 1 15 Spring Spring Steel 0-2 Indicator Plastic (ABS) 1 1 Bearing (Piston) Polyoxymethylene 2 3 Circlip SS30 1 1 O-Ring (Piston) NBR 2 Trust washer SS30 1 1 Piston Cast Aluminum/Casting (A30) 2 5 Outside washer Polyoxymethylene 1 1 Plug NBR 2 Body Anodized, Extruded, Aluminum Alloy (005-T5) 1 20 O-Ring (Adjust Screw) NBR 2 Guide (Piston) Polyoxymethylene 2 21 Nut (Adjust Screw) SS30 2 O-Ring (Pinion top) NBR 1 22 Adjust Screw SS30 2 Bearing (Pinion top) Polyoxymethylene 1 23 Stop Screw SS30 2 Inside washer Polyoxymethylene 1 2 Nut (Stop screw) SS30 2 Cam Alloy Steel (#5) 1 25 O-Ring(End cap) NBR 2 Pinion Alloy Steel (#5) 1 2 End Cap Polyester Coated Cast Aluminum (A30) 13 Bearing (Pinion bottom) NBR 1 2 Cap Screw SS30 1 O-Ring (Pinion bottom) Polyoxymethylene 1 2 FIGURE 2. APD SERIES 1 2 page 3 3 5 1 2 1 23 15 1 20 21 22 2 2 1 13 1 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 DIMENSIONS (MM) APD SERIES PNEUMATIC ACTUATOR MODEL L l1 w1 l2 l3 l h2 h3 h ØM1 M3 Thread x Length TxL(a) Thread x Length TxL(b) Air Connection APD-0 0 0 30 5 2.5 3.5 0 20 1 3/50 x M x M5 x G1/ APD-52 1 0 30 5 30 1.5 2 20 1 3/50 x M x M5 x G1/ APD-3 1 0 30 2 3.5 20 1 50/0 1 x 1 M x13 M x G1/ APD-5 1 0 30 1 2 53.5 20 1 50/0 1 x 1 M x13 M x G1/ APD-3 20 0 30 2 5. 20 21 50/0 1 x 1 M x13 M x G1/ APD-2 22 0 30 50 1.5 20 21 50/0 1 x 1 M x13 M x G1/ APD-5 2 0 30.5 5.5 133 20 2 0/2 22 x 22 M x1 M x13 G1/ APD-5 301 0 30.5.5.5 155 20 2 0/2 22 x 22 M x1 M x13 G1/ APD-10 30 0 30 13.5 5 12 20 31 2/5 2 x 2 M x20 M x1 G1/ APD-10 5 0 30 15 1 20 31 2/5 2 x 2 M x20 M x1 G1/ APD-10 52 130 30 1 3 3 230 30 0 10 3 x 3 M1 x25 G1/ APD-2 532 130 30 2 255 30 0 10 3 x 3 M1 x25 G1/ APD-20 02 130 30 25 130 130 2 30 50 15 3 x 3 M20 x25 G1/ APD-20 22 130 30 2 255 30 50 15 3 x 3 M20 x25 G1/2 FIGURE 3. APD SERIES A l2 DETAIL VIEW A h3 h2 B h M L l3 l ØM1 5 -M5x 2 ØM1 TxL(a) M3 TxL(b) 32 2-G1/ -M5x W1 page DETAIL VIEW B l1 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 AP SERIES DIMENSIONS (MM) APB SERIES PNEUMATIC ACTUATOR MODEL L l1 w1 l2 l3 l l5 l h1 h2 h ØM1 M3 Thread x Length TxL(a) Air Connection APB-300 2 130 30 32 1 0 5 32 3 3 0 15/ 215 M20x25 G1/2 APB-350 0 130 30 30 220 0 5 32 32 02 0 15/ 215 M20x25 G1/2 FIGURE. APB-300 & APB-350 DETAIL VIEW A FIGURE. APB-00 DETAIL VIEW A ØM1 5 55 deep 0 Ø0 Ø5 ØM1 DETAIL VIEW B TxL(a) M3 l A B l l5 F25 Ø25 -M1x25 55 deep 0 F1 Ø15 -M20x25 30 A -Mx 5 22.5 20 0 2-G1/2" A B h h2 h1 L w1 l3 l2 DETAIL VIEW B -Mx 0 2-G1/2" -M5x 2 30 C 2 51 DETAIL VIEW C Ø deep M deep15 5 page 5 l1 3 130 FIGURE. APB-500 FIGURE. APB-00 23 23 15 15 -Ø33 G1/2 -Ø0 Ø35 Ø3 0 0 G1/2 0 20+0.05 2-G1 0 1 G1/2 0 20+0.05 2-G1 0 0 30 Ø0 0 30 Ø50 0 10 32 Ø0 2130 5 Ø 200 FIGURE. APB-00 FIGURE. APB-00 20-Ø0 20-Ø0 Ø03 Ø03 0 3 0 5 0 3 0 5 2-G1/2 2-G1 20+0.05 30 0 Ø0 0 20+0.05 2-G1 30 0 Ø0 0 5 Ø200 20 2 250 20 22 5 Ø200 250 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 OUTPUT TORQUE OF DOUBLE ACTING ACTUATOR (NM) APD & APB SERIES AIR PRESSURE (BAR) MODEL 2 2.5 3.5 5 5.5 APD0DA..2.5.. 13.1 1.3 1. 1.1 APD52DA 1 1 20 21. 23. 2. 31. APD3DA 1. 1.2 21. 2.2 32. 3.5 0.1 3. 51.1 5. APD5DA 20.1 25.1 30.1 0.1 5.1 50.2 55.2 0.2 0.2 0.3 APD3DA 31. 3.2 2. 0.5..2.1. 5. APD2DA 5.1 5.. 0.3 1. 1..1 135. 15. APD5DA.1 2..2 132.2 1. 15.3. 1. 231. 2.5 APD5DA 0.3 5. 150.5 200. 225. 250. 25. 301 351.1 01.3 APD10DA 213. 25.5 32 3. 2.5 0.3 513 5.5 APD10DA 2 332.5 3 532 5.5 5 31.5 31 APD10DA 25. 532 3. 51.2 5. 0.. 1. 102. APD2DA 532 5 1330 13 15 12 2 APD20DA.5 1. 5.3 153 131. 123. 2.1 230.5 23.3 30 APD20DA. 12.1 15.5 233.3 231. 22.1 321.5 350. 03.. APB300DA 152 10 22 3052 33 315 1 5 531 APB350DA 225 25 32 50 511 5 23 5 13 APB00DA 325 0 3 5 325 13 53 3 13022 APB500DA 5 1 15 10 25 23315 253 23 33 APB00DA 12 203 21 3255 325 0 33 52 51 page APB00DA 30 33 155 21 232 5 3150 APB00DA 2 552 31 22 5 152 150 13233 153 1 Diagram 1. For double acting actuator Diagram 2. For spring return actuator OUTPUT TORQUE OUTPUT TORQUE AIR STROKE OUTPUT TORQUE SPRING STROKE 0 5 0 ROTATION 0 5 ROTATION 0 0 5 ROTATION 0 OUTPUT TORQUE OF SPRING RETURN ACTUATOR (NM) APD SERIES AIR PRESSURE (BAR) 2.5 3 5 SPRING'S OUTPUT SPRING QTY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 START END START END START END START END START END START END START END APD52SR 5 5. 3.. 5..2.3. 2.5..5..5. 5 1.3 5.2.3 3.3 2 0...2.3...3. 3. 2.3 1 13.2.3.5....1.. 5..2 1.2 1.3 15.5 1. 13. 1.1....1 20. 3 1.5 1. 1. 1. 15. 1.3.2 22. 21. 1.3 1.1... 1. 13. 1. 5....5.3.2 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 APD SERIES AIR PRESSURE (BAR) 2.5 3 5 SPRING'S OUTPUT SPRING 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 QTY START END START END START END START END START END START END START END 5.. 15. 22.3 1....1 5. 13..3 20. 1. 2.3 23..5.2. 3..5.2 1.5 1.5 2. 21. 1.. APD3SR. 5.1 1.2 1. 1....2 25.5 2.1 22. 1. 1. 15. 32. 31. 30 2 2. 22. 0.1 3. 3.3 3.3 32.2 30.1. 3. 1. 1. 20...3 13. 21.5 13.5 2. 20. 3 2 3.3 35.3 22. 15 20. 2.3 1. 3. 25. 1. 33.3 25 1. 5 1.5. 1. 15.5 2.5 25. 1.5.5.. 1.3. 2. 22. 3.5 32. 1.... 15.2. 25.3 1. 35. 2. 20.3 1. APD5SR 13.1. 23.1 21 1 1. 1.1.1 33.3 31.2 2. 2 2.1 21.2 3.2 1.1 3 3 3.1 31.2 53.3 51.2.1.2 1.2 5.1 51.2 23.2 2.1 2 1. 1 21.1 2 1.3 3 2.3 3. 5. 31. 23.2 2. 15. 3. 25.. 35. 5. 5. 3. 25.3 5 23.3 1.1 31.1 2. 3. 23 15. 20.1.5 2 1.3 3. 35.1 5. 50. 2. 1 1. 2. 1. 0.5 30.5 5.2.2 32.2 22.1 APD3SR 21..1 3. 3.2 31 25. 21.3 1. 53.1.. 1.5 3 32.3. 5. 2. 5.2 52..5 1.2.1 2..3 3. 3..3 3. 1. 25.3 2.5 31. page 3. 2. 5.3 3. 5 5.1 0.. 50. 3. 0. 23.2 5.1 3. 1. 5.5. 0.2 55.2 3 5 33.1 22.2 33.2. 55. 3. 23.3 2. 15.2 3. 2. 2.2. 1. 1.2 2 APD2SR 23..2 3. 31.3 1.. 5.5 52..2 3. 2.1 35.2 2. 21.5 0.2 5.5 0..2. 5. 51.1.1 3.5. 0.5 3.. 0. 1.3 3.1.2 13.0 1..1 55 1.. 32. 3.3 2. 1.5 3.2.1 5.. 2..2 5 5. 51. 5. 30.. 53 1. 5.5.5.1 2.5 5 5 51 33..5. 0. 3.2 31.. 23.5 1.1 0.2 3.2.3.2 5.1 3 APD5SR 3. 13. 5..5 30.3 20.. 1. 5.3. 3. 53.5 3. 33. 1.. 2..5..5 1. 11.5 135.1.... 1.5 1.2 152. 12. 132. 201.2 15......3 50. 5. 3.3 5. 5. 0.1 11. 3.1 1. 15.2.3...5 2.5 0. 155.5 3. 1. 1..1 5. 5 3 2 1 2 52 3 31 5 13 1 15 3 APD5SR 52 15 0 25 0 5 5 1 1 15 1 11 5 21 20 1 1 15 1 2 25 2 22 2 1 2 25 1 5 11 15 3 5 13 1 23 1 2 22 13 5 5 3 1 3 22 13 2 213 1 5 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 OUTPUT TORQUE OF SPRING RETURN ACTUATOR (NM) page APD10SR APD10SR APD10SR APD2SR APD20SR APD20SR APD SERIES AIR PRESSURE (BAR) 2.5 3 5 SPRING'S OUTPUT SPRING 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 QTY START END START END START END START END START END START END START END 5 5 25 213 1 5 15 2 23 1 325 23 155 3 33 13 222 12 30 2 0 0 50 205 13 21 221 3 30 2 32 20 13 1 1 23 1 35 21 3 232 155 10 25 1 31 255 2 30 5 2 25 12 23 13 32 22 0 31 5 00 2 1 221 30 203 32 2 3 3 20 5 13 25 32 32 20 10 15 3 232 1 35 22 15 250 1 13 1 203 33 20 33 22 1 1 30 1 2 23 55 5 0 5 333 223 20 15 13 20 5 23 55 35 251 253 5 3 2 51 31 52 51 5 1 2 35 20 1 30 2 3 5 0 5 30 330 15 3 2 5 31 2 5 500 335 5 332 222 3 32 51 52 30 200 22 11 3 2 0 2 3 31 20 252 35 205 51 1 31 33 20 31 13 531 35 5 5 2 5 5 320 1 25 0 50 1 20 30 33 55 30 51 233 5 0 1 1302 1 00 2 3 3 5 50 0 3 22 0 0 5 322 535 23 0 2 0 5 30 25 523 1 30 25 335 20 32 3 0 00 5 330 20 133 13 2 532 5 532 35 35 10 2 5 0 22 5 122 5 0 0 5 30 35 13 5 51 30 0 50 3 13 12 15 13 0 550 25 1 0 5 2 1523 2 3 05 0 1 3 02 50 1 1 0 5 552 0 00 1 5 55 0 2 2 132 5 5 2 3 1 50 3 13 5 55 2 3 53 3 152 122 203 5 00 52 5 2 15 13 15 1 3 1 31 13 1 1 01 12 15 225 10 1 21 21 05 10 0 1 21 15 1 03 3 5 1323 10 133 203 1 1330 5 5 03 5 5 1 1552 50 0 51 3 1 13 2252 3 2 31 2 5 155 3 211 3 3 0 1 1 202 1 21 2252 31 23 5 5 1332 23 150 2502 20 30 2 11 0 20 5 1352 230 13 2 2521 350 3 152 1 13 22 1 22 23 3 2 130 31 152 3 21 123 251 220 333 22 1 132 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 AP SERIES APB00SR APB00SR APB500SR APB00SR APB350SR APB300SR APB SERIES AIR PRESSURE (BAR) 2 2.5 3 5 SPRING'S OUTPUT SPRING 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 QTY START END START END START END START END START END START END START END START END START END 5 15 3 2 1 30 553 1 35 2 25 131 53 1 5 3 03 15 152 130 102 30 5 251 2355 213 2030 1 12 13 15 22 3 25 23 231 25 2221 15 1 31 355 33 2 2 25 2 31 15 3 35 325 3 15 1 10 22 233 25 22 131 10 10 152 5 2 21 33 15 1553 2 31 5 20 13 102 131 5 01 25 2 222 13 122 15 5 32 33 35 2 25 2 230 12 1551 2 50 2 3 32 3 301 23 231 530 5 21 33 35 532 21 0 535 5 102 203 233 22 30 305 35 0 3 10 12 1 21 23 251 21 13 1 15 1 15 5 202 13 2550 225 1 25 3 3 355 3303 30 23 13 12 25 5223 31 0 3 05 35 35 31 253 215 13 1 55 2 5 55 533 51 3 21 323 33 20 252 5 03 3 020 2 50 550 3 53 0 523 231 0 35 53 0 21 1 50 20 322 303 5 52 3 53 51 12 5 13 20 232 22 2 31 3 3 33 1 5 15 1 52 5 5 2 53 33 35 131 223 32 15 01 5 230 313 1 52 10 22 130 152 12 5 5 3 13 5 5 30 12 35 12 1531 3 235 02 225 2501 13001 151 205 31 213 100 323 220 5 323 2 1335 2205 3 33 1 003 2220 55 301 33 202 53001 31 3 30 3 2 15 2 23 page AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 OPERATION TIME (SEC) APD & APB SERIES AIR PRESSURE (5 BAR) DOUBLE ACTING SPRING RETURN 3+3 3+ + +5 5+5 5+ + MODEL 0-0 0-0 MODEL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 APD52DA 0. 0.53 APD52SR 2. 0. 2. 0. 2.5 0. 2.52 0.2 2.5 0. 2.5 0.3 2.5 0.3 APD3DA 0. 0.5 APD3SR 2.5 0.5 2.5 0.5 2.5 0.52 2. 0.5 2.2 0. 2. 0. 2. 0. APD5DA 0.2 0. APD5SR 2.2 0. 2. 0.2 2. 0. 2. 0.5 2. 0.5 2.2 0.5 2. 0.52 APD3DA 0.3 0.3 APD3SR 2.1 0.3 2.3 0.1 2.5 0. 2. 0. 2. 0.5 2.1 0.3 2.3 0.1 APD2DA 1 0. APD2SR 2. 0. 2.1 0. 2.3 0.2 2.5 0. 2. 0. 2. 0. 3.01 0. APD5DA 1.35 1.3 APD5SR 3.1 0.1 3.1 0. 3.1 0. 3.2 0.5 3.22 0.3 3.2 0.1 3.2 0. APD5DA 2. 1. APD5SR.2 1.2.2 1.1.2 1.1.3 1.1.32 1..3 1.1.3 1.0 APD10DA 2.5 2.1 APD10SR. 1.35. 1.33.2 1.31. 1.2. 1.2. 1.25. 1.22 APD10DA 3.3 2. APD10SR. 1.. 1.5. 1.3. 1.1.2 1..2 1.. 1.5 APD10DA.55 3.5 APD10SR 5.5 3. 5. 3.5 5.5 3. 5. 3. 5. 3. 5. 3.2 5.3 3. APD2DA 5.5.35 APD2SR.25....2.5..5..5..52.5.5 APD20DA..33 APD20SR 1.2 5.1 1. 5. 1.2 5.1 1.. 1.. 1.. 1. APD20DA..53 APD20SR 1..2 1..2 1..2 1..2 1.1 1.2.1 1..1 APB300DA 15 1. APB300SR 31 1.3 31.5 1 31.3 1. 31 1. 31.2 1.5 31. 1.5 31. 1.5 APB350DA 23. 1. APB350SR 5 2 51 2 51.3 2. 51.5 2. 51. 2. 51. 2. 52.1 2.2 APB00DA 31 2 APB00SR 5. 35. AIR CONSUMPTION (L/MIN) WEIGHT (KG) page APD & APB SERIES MODEL AIR VOLUME OPENING AIR VOLUME CLOSING APD-52 0. 0.1 APD-3 0.21 0.23 APD-5 0.3 0.3 APD-3 0.3 0. APD-2 0. 0.3 APD-5 0.5 0. APD-5 1. 1. APD-10 2.5 2.2 APD-10 3. 3.2 APD-10 5. 5. APD-2.5.5 APD-20 APD-20 1 1 APB-300 23. 2. APB-350 35.1.3 APB-00 52. 3 APD-500 132. 1 APB-00 252.5 2 APB-00 55 52 APB-00 1 2 APD & APB SERIES MODEL DOUBLE ACTING (DA) SPRING RETURN (SR) APD52 1.3 1.5 APD-3 2.03 2.05 APD-5 2. 2. APD-3 3.13 3. APD-2. 5.22 APD-5..5 APD-5.. APD-10 13.25 15.55 APD-10 20.1 2 APD-10 31.3 35.25 APD-2. 5. APD-20.2 0.2 APD-20. APB-300 APB-350 APB-00 1 1.5 2 130 23. 30. APD-500 0. APB-00 15 2130 AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au
ISO 001 AP SERIES OPERATING CONDITIONS 1. Operating media Dry or lubricated air, or the non-corrosive gasses. The maximum particle diameter must less than 30um. 2. Air supply pressure The minimum supply pressure is 2.5 Bar. The maximum supply pressure is Bar. 3. Operating temperature Standard (NBR O-ring: -20 C to +0 C). Low temperature (Silicone O-ring: 35 C to +0 C). High temperature (Viton O-ring: -15 C to +150 C).. Travel adjustment Adjustment range of ±5 for the rotation at 0 and 0. 5. Application Either indoor or outdoor. MAINTENANCE 1. It is recommended that periodic checks be performed to make sure that all fasteners remain tight. 2. The actuator is supplied ready-lubricated no further lubrication is required. If lubrication is deemed necessary, use EP-1 grease. 3. Under certain working conditions (heavy duty, non-compatible operating media or abnormal operating conditions) internal seals should be checked periodically and replaced when necessary.. On spring return actuators, spring fatigue may set in requiring the replacement of springs. Spring should always be replaced in full sets. Note: If an actuator is properly assembled and used, it will be maintenance free as it has been lubricated to last a normal working life under normal working conditions. INSTALLATION OF ACTUATOR ONTO VALVE Remove any manual opening device from the valve, leaving the valve stem clear. Make sure that the shape of the stem fits the actuator output and that the rotation is not hindered in any way. Mount the actuator onto the valve, centering it well on the stem. Make sure the rotation direction is correct, do not insert your hands inside the valve. We strongly suggest checking the cleanliness of the air-supply pipes, especially when the plant is not provided with filters. A spacer between actuator and valve will be necessary with fluids at high temperature. page Diagram 3. Springs mounting for spring return actuator. 5 Springs Springs Springs Springs Springs Springs Springs Springs AVFI Pty Ltd: 5 Enterprise Drive, Bundoora, Victoria, Australia 303 T: 03 0000 F: 03 00 E: avfi@avfi.com.au www.avfi.com.au