Neles Easyflow RNP Series Installation Maintenance And Operating Instructions Download Page 28

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IMO-218 EN - 8/2020

Subject to change without prior notice. Neles, Jamesbury and Easyflow by Neles, and certain other

trademarks, are either registered trademarks or trademarks of Neles Corporation or its subsidiaries or

affiliates in the United States and/or in other countries. For more information www.neles.com/trademarks

Neles

Vanha Porvoontie 229, 01380 Vantaa, Finland.

Tel. +358 10 417 5000.

neles.com

Summary of Contents for Easyflow RNP Series

Page 1: ...Easyflow by Neles Series RNP Compact Rack and Pinion Pneumatic Actuators Installation Maintenance and Operating Instructions IMO 218 EN Issue 8 2020...

Page 2: ...AND DEMOUNTING 7 Actuator gas supply 7 Installation information 7 Mounting the actuator on the valve 8 Operating directions 8 Setting 9 MAINTENANCE 9 Maintenance general 9 Maintenance precautions of...

Page 3: ...the linear motion of the rack into rotational motion A B A B Double Acting Top View Air supplied to Port A forces pistons apart and toward end positions with exhaust air exiting at Port B a countercl...

Page 4: ...3 1 3 SR 0 3 0 3 1 5 RNP50 DA 0 15 0 26 0 3 0 3 1 7 SR 0 3 0 3 2 0 RNP63 DA 0 27 0 43 0 3 0 3 2 3 SR 0 3 0 3 2 8 RNP80 DA 0 44 0 69 0 4 0 4 3 1 SR 0 4 0 4 3 9 RNP90 DA 0 72 1 15 0 4 0 4 5 1 SR 0 4 0...

Page 5: ...4 462 416 514 150 SR 55 226 363 0 137 52 189 104 241 156 293 208 345 260 397 312 449 175 SR 30 168 274 176 283 251 358 326 433 401 508 476 583 551 658 626 733 701 808 175 SR 40 223 366 85 227 160 302...

Page 6: ...ELEASE IN THE WORST CASE DAMAGE TO THE EQUIPMENT AND PERSONAL INJURY MAY RESULT CAUTION DON T DISMANTLE A PRESSURIZED ACTUATOR DISMANTLING A PRESSURIZED ACTUATOR LEADS TO UNCONTROLLED PRESSURE RELEASE...

Page 7: ...ir nitrogen or natural gas sweet can be used as supply medium no oil spraying is needed The air supply connections are presented in the dimensional drawings in Chapter 9 The maximum supply pressure is...

Page 8: ...from jamming due to rust The actuator must not be allowed to come in contact with the pipework because the vibrations may damage it or cause unsatisfactory operation In some cases e g when using larg...

Page 9: ...110 Quarter turn RNP 125 Quarter turn RNP 150 Quarter turn RNP 175 Quarter turn RNP 200 Quarter turn RNP 250 Quarter turn RNP 300 Quarter turn RNP 350 Quarter turn 4 MAINTENANCE 4 1 MAINTENANCE GENER...

Page 10: ...TO ENSURE SAFE AND EFFECTIVE OPERATION ALWAYS USE ORIGINAL SPARE PARTS TO MAKE SURE THAT THE ACTUATOR FUNCTIONS AS INTENDED NOTE WHEN SENDING GOODS TO THE MANUFACTURER FOR REPAIR DO NOT DISASSEMBLE T...

Page 11: ...ded grease for greasing rack and seals Apply the grease with soft brush NOTE Carry out maintenance involving disassembling of actuator in a safe indoor place free from dust water Ensure that air suppl...

Page 12: ...ators until the pinion becomes free Rotate the pinion 2 in the clockwise direction For Spring return fail safe open actuators until the pinion becomes free d Pull the piston out from each side by hold...

Page 13: ...s b Fit bottom pinion bearing 15 and bottom pinion seal 11 on to the pinion 2 Apply recommended grease over the pinion bearing surface 15 and on the bottom pinion seal 11 Apply a thin coat all over th...

Page 14: ...clockwise CCW assembly dot on the pinion is positioned close to the two dots on the top pad of the actuator body then assemble piston For clockwise CW assembly dot on the pinion is positioned close to...

Page 15: ...For spring return actuators release the air pressure for double acting actuators apply air to Port B This will bring the pistons back to the 0 degree position v Adjust the stroke adjustment screw 5A...

Page 16: ...s Check bearings Replace bearings when neccessary Moving parts corroded in harsh humid conditions Replace the corroded parts Backlash in joint between actuator and valve Replace parts as necessary 10...

Page 17: ...PASSIVATION 9 8 COVER BOLT STAINLESS STEEL AISI304 10 1 WASHER PINION POLYACETAL 11 1 O RING PINION BOTTOM NITRILE RUBBER NBR 70SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEE...

Page 18: ...AINLESS STEEL AISI304 10 1 WASHER PINION POLYACETAL 11 1 O RING PINION BOTTOM NITRILE RUBBER NBR 70SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEEL AISI304 14 1 O RING PINION...

Page 19: ...G BOTTOM PINION NITRILE RUBBER NBR 70SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEEL AISI304 14 1 O RING TOP PINION NITRILE RUBBER NBR 70SHORE A 15 1 PINION STRIP POLYACETAL...

Page 20: ...LT STAINLESS STEEL AISI304 14 1 O RING TOP PINION NITRILE RUBBER NBR 70SHORE A 15 1 PINION STRIP POLYACETAL 16 2 COVER SEAL NITRILE RUBBER NBR 70SHORE A 17 1 CIRCLIP PINION SPRING STEEL EN47 GR 3 ZINC...

Page 21: ...E RUBBER NBR 70SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEEL AISI304 14 1 O RING PINION TOP NITRILE RUBBER NBR 70SHORE A 15 1 PINION STRIP POLYACETAL 16 2 COVER SEAL NITRIL...

Page 22: ...INION POLYACETAL 11 1 O RING PINION BOTTOM NITRILE RUBBER NBR 70SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEEL AISI304 14 1 O RING PINION TOP NITRILE RUBBER NBR 70SHORE A 15...

Page 23: ...0SHORE A 12 2 RACK BEARING POLYACETAL 13 2 NUT STOPER BOLT STAINLESS STEEL AISI304 14 1 O RING TOP PINION NITRILE RUBBER NBR 70SHORE A 15 1 PINION STRIP POLYACETAL 16 2 COVER SEAL NITRILE RUBBER NBR 7...

Page 24: ...ING TOP PINION NITRILE RUBBER NBR 70SHORE A 15 1 PINION STRIP POLYACETAL 16 2 COVER SEAL NITRILE RUBBER NBR 70SHORE A 17 1 CIRCLIP PINION SPRING STEEL EN47 GR 3 ZINC FLAKING 18 1 BEARING BUSH CAM POLY...

Page 25: ...5 25 25 33 46 45 63 57 57 L 30 34 41 49 58 62 66 73 88 93 132 132 187 187 M 38 42 47 53 57 63 67 76 88 96 157 157 207 207 N A F 12 14 18 18 23 26 28 32 36 41 41 41 41 41 O 14 16 20 20 27 30 33 36 42 4...

Page 26: ...g spring version SR55 5 5 barg spring version DN00 Double acting 4 Action C Spring to close 90 A Spring to open 90 D Double acting 90 5 Material A Aluminum anodized B Aluminum epoxy paint 6 Pinion pis...

Page 27: ...27 IMO 218 EN Issue 8 2020...

Page 28: ...certain other trademarks are either registered trademarks or trademarks of Neles Corporation or its subsidiaries or affiliates in the United States and or in other countries For more information www...

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