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EN -

OMAL S.p.A.

Headquarters

: Via Ponte Nuovo, 11 - 25050 Rodengo Saiano (BS) Italy •

Production Site:

Via Brognolo, 12 - 25050 Passirano (BS) Italy

Ph.

+39 030 8900145 •

Fax

+39 030 8900423 • [email protected] •

www.omal.com

Reference 8_1522 - UMAAPRK0 - 07/20

INSTRUCTION MANUAL

RACK & PINION PART TURN PNEUMATIC ACTUATOR

DOUBLE ACTING (DA) AND SPRING RETURN (SR)

RK10 - RK480

Содержание Rackon RK10

Страница 1: ...y Production Site Via Brognolo 12 25050 Passirano BS Italy Ph 39 030 8900145 Fax 39 030 8900423 info omal it www omal com Reference 8_1522 UMAAPRK0 07 20 IT EN DE FR ES INSTRUCTION MANUAL RACK PINION PART TURN PNEUMATIC ACTUATOR DOUBLE ACTING DA AND SPRING RETURN SR RK10 RK480 ...

Страница 2: ... 7 INSTALLATION INSTRUCTION 10 8 OPENING AND CLOSING ANGLE SETTING 14 9 MATERIALS AND DURABILITY 18 10 MAINTENANCE 21 11 ATEX SPECIFICATIONS 29 12 ACTUATORS SPECIAL VERSIONS 30 13 STORAGE 30 14 TROUBLE SHOOTING 30 15 DISPOSAL OF PRODUCTS AT THE END OF THEIR LIFE CYCLE 31 16 DECLARATION OF CONFORMITY 31 17 ENVIRONMENT IMPACT 31 Environmentally friendly under the green leaf icon you can find the ins...

Страница 3: ... torque curve while Spring Return SR Rack Pinon actuators have a decreasing rectilinear torque curve The components for the actuator maintenance are supplied in the OMAL spare part kit see section 9 exploded views Actuators maintenance should be done by OMAL or trained personnel only see section 10 This instruction manual contains important information regarding operation installation maintenance ...

Страница 4: ...ressure flow capacity pipe size connection solenoid valve performance valve torque and characteristics ambient temperature condition Double Acting 0 90 cycle time ms 90 0 cycle time ms RK10 23 21 RK20 73 47 RK40 131 110 RK60 160 120 RK80 189 130 RK120 137 125 RK160 183 177 RK240 304 288 RK300 383 354 RK480 522 455 Ambient temperature 18 25 C 64 4 77 F Supply pressure compressed air 5 5 bar 80 psi ...

Страница 5: ...MAL standard actuators are suitable for indoor and outdoor installation Aluminium cylinder has an external corrosion protection realized by a 20µm technical oxidation layer Casted aluminium end caps are polyester painted The nickel plated transmission shaft Grub screw and caps screws are in stainless steel Actuators for aggressive or severe environment applications are available please contact us ...

Страница 6: ...ding available from RK10 to RK240 not available for RK300 and RK480 NPT threading available from RK10 to RK480 Outer chamber supply hole GAS or NPT threading VDI VDE 3845 Namur threaded connection holes GAS threaded on the Namur plate from RK10 to RK240 GAS threaded on the cylinder for RK300 and RK480 NPT threaded on the cylinder from RK10 to RK480 Threaded holes according to VDI VDE 3845 to conne...

Страница 7: ... Fail Open D Double effect G G Springs used 00 No springs 20 2 0 bar springs 25 2 5 bar springs 30 3 0 bar springs 35 3 5 bar springs 40 4 0 bar springs 45 4 5 bar springs 50 5 0 bar springs 55 5 5 bar springs 60 6 0 bar springs H H Smaller Flange Type 03 F03 04 F04 05 F05 07 F07 10 F10 12 F12 I Lower shaft seat shape socket Q Star shaft D Flat head shaft J J Lower shaft seat size socket 09 Shaft ...

Страница 8: ...r into port 4 actuator shaft rotates clockwise CW to close the valve 5 2 Spring Return SR FAIL TO CLOSE Supplying air into port 2 pistons move outward compressing the springs and actuator shaft rotates counter clockwise CCW to open the vale Closing action is realized stopping air feeding Springs energy push pistons back and consequently shaft rotates clockwise CW To avoid dust or solid particles i...

Страница 9: ...close port 4 using a cap In case of explosive environment use protection caps in complian ce with National safety or technical Standards 5 4 Connection diagram Remote operation control should be done connecting a direct solenoid valve to VDE VDI 3845 NAMUR plate or connecting a piping system directly to ports 2 4 Use an independent electric control cabinet According with ISO 5599 2 Standard actuat...

Страница 10: ...ions OMAL cannot be considered responsible for any damage to people animals or things due to an improper use of the product 7 INSTALLATION INSTRUCTIONS Before actuator installation check its conditions to verify eventually failure during transport and or storage Actuator purpose is a remote control of a valve opening and closing actions avoiding manual operations Actuator uses air or gas controlle...

Страница 11: ... and actuator socket Installation A Pull reduction in valve stem in case of reduction needs only B Put valve stem into the actuator socket C Verify correct connection to avoid play clearance or interferences in between D Place screws 1 and relevant washers 2 and screw them in compliance with below torque indications E After installation check actuator rotation direction for Double acting DA actuat...

Страница 12: ...ion OMAL actuator with evacuation grooves on connection side is purposely designed to a direct installation Evacuation grooves avoid any actuator damages caused by eventual draining fluids coming from valve stem Installation A Place Bracket 4 on valve flange ribs must be perpendicular to the pipe B Place screws 1 and relevant washers 2 C Place nuts 7 and washers 8 and in correspondence to the scre...

Страница 13: ...CTUATOR RK10 RK480 7 2 Actuator Valve controls Rotation direction check and installation Double acting DA Closed valve Spring Return SR Fail Close Closed valve Double acting DA Opened valve Spring Return SR Fail Close Opened valve Rotazione oraria dell albero Clockwise rotation of the shaft 4 Rotazione oraria dell albero Clockwise rotation of the shaft 4 Counter clockwise Rotazione antioraria dell...

Страница 14: ... rotation angle is nominally 90 with a 5 adjusting stroke closing setting from 5 to 5 and opening setting from 85 to 95 Before any operation take the pressure off disconnect air feeding and make sure that air ports have been completely vented A B A B GRANO DADO O ring RONDELLA CAMMA Adjusting screw nuts Size Thread Grub screw key Nut key Torque Nm RK 10 M6 ch 3 ch 10 10 11 RK 20 RK 40 RK 60 M8 ch ...

Страница 15: ... order to put pistons in home position E Using an Allen wrench screw or unscrew grub screw A to obtain angle setting required range 5 F Once adjusted lock the grub screw A using an Allen wrench and screw counter nut A1 according to torque indications Closing Setting instructions A Take pressure off disconnect air feeding and make sure that air ports have been completely vented B Act on the grub sc...

Страница 16: ... 2 with a low pressure for a small movement only in order to put pistons in end position F Using an Allen wrench screw or unscrew grub screw A to obtain angle setting required range 5 G Once adjusted lock the grub screw A using an Allen wrench and screw counter nut A1 according to table torque indications Setting range Pistons end position Closing Setting instructions A Take pressure off disconnec...

Страница 17: ... Allen wrench screw or unscrew grub screw A to obtain angle setting required range 5 F Once adjusted lock the grub screw A using an Allen wrench and screw counter nut A1 according table torque indications Setting range Pistons rest position Closing Setting instructions A Take pressure off disconnect air feeding and make sure that air ports have been completely vented B Make sure that on air port 4...

Страница 18: ...table below Nominal torque a Nm Piston or vane actuator Minimum number of cycles b Maximum stroking time for testing based on 0 90 s 125 500 000 c 3 1 000 500 000 5 2 000 250 000 8 8 000 100 000 15 32 000 25 000 20 63 000 10 000 30 125 000 5 000 45 250 000 2 500 60 a Based on EN ISO 5211 b One cycle consists of nominal 90 angular travel in both directions i e 90 to open 90 to close For angular tra...

Страница 19: ...alloy 7 Internal support ring 1 Acetal resin 8 External support ring 1 Acetal resin 9 Washer 1 Stainless steel 10 Seeger 1 Stainless steel 11 O Ring 2 Nitrile rubber 12 O ring upper sealing shaft 1 Nitrile rubber 13 Namur plate 1 Aluminium alloy 14 Screw 2 Stainless steel 15 O Ring 2 Nitrile rubber 16 Washer limit stroke 2 Stainless steel 17 Nut limit stroke 2 Stainless steel 18 Grub screw limit s...

Страница 20: ... 10 Seeger 1 Stainless steel 11 O Ring 2 Nitrile rubber 12 O ring upper sealing shaft 1 Nitrile rubber 13 Namur plate 1 Aluminium alloy 14 Screw 2 Stainless steel 15 O Ring 2 Nitrile rubber 16 Washer limit stroke 2 Stainless steel 17 Nut limit stroke 2 Stainless steel 18 Grub screw limit stroke 2 Stainless steel 19 Piston 2 Aluminium alloy 20 Piston support leg 4 Acetal resin 21 Dynamic seal 2 Pol...

Страница 21: ...ections and must be disconnected from the valve Spare parts must be replaced by qualified personnel and with appropriate tools only In the case of Spring return actuators the springs can be under tension Do not attempt to act manually on the actuator when the actuator is under pressure In case of Spring return actuator springs must be in FAIL position Do not disconnect the actuator from a line und...

Страница 22: ...rew 18 using an Allen wrench C Remove washer 16 and O Ring 15 Check counter nut and grub screw D Lock the actuator into a vice rotate the shaft see below pictures until pistons look completely free from shaft gear then remove the pistons from the cylinder Do not use air to remove the pistons it might cause severe personal injuries E Check dynamic seal 21 and piston support leg 20 Do not use sharpe...

Страница 23: ...panding pliers G Separate washer 9 from external support ring 8 from cylinder using a flat bladed screwdriver H Pull down shaft 2 as shown in below picture During this process hold cam 6 and internal support ring 7 Cam fall could cause irreversible scrapes or grooves in cylinder inner surface I Pull up O ring 12 and slide ring 3 and remove them J Pull down O ring 5 and slide ring 4 and remove them...

Страница 24: ...Not all actuator sizes are equipped with Namur plate see section 3 M Disassembled components must be cleaned and verified before reassembly In case of advanced state of wear o break replace the components using OMAL replacement Kit If it is necessary to replace parts not present in the spare part kit contact OMAL Degreasing process must be done using only specific cleaners suitable for rubber Do n...

Страница 25: ...RK480 B Grease pistons 19 on tightening surface 21 Lubricate piston support leg 20 and put them on relevant seats C Lubricate O ring 12 5 and slide rings 3 4 D Grease piston gear slide rings seats and shaft O Ring 2 E Pull down upper slide ring 3 and O Ring 12 see beside image F Pull up lower slide ring 4 and O ring 5 see beside image G Slide rings and O Rings must be assembled manually do not use...

Страница 26: ...rt ring 7 and cam 6 J Grease external support ring 8 and washer 9 K Pull up the shaft in the lower cylinder hole then insert cam 6 and internal support ring 7 according to below instructions L Pull up the shaft in the upper cylinder hole and insert external support ring 8 washer 9 and Seeger 10 M According to actuator configuration place shaft 2 and cam 6 as below indicated 10 9 8 1 7 6 2 Double A...

Страница 27: ...r into a vice and using a wrench rotate the shaft to verify Easy shaft rotation Correct rotation direction Closing angle range 0 5 looking at shaft slot Opening angle range 90 5 looking at shaft slot Q For Spring Return SR actuators follow the further indications 19 2 Tool Model Spring quantity Spring location on pistons sx dx Piston Left Right RS20 4 2 5 1 2 5 3 6 4 2 5 1 2 5 3 6 4 RS25 5 2 5 1 2...

Страница 28: ... torque instructions S Grease O ring 15 T Screw hexagon nut 17 for some threads on grub screw 18 insert washer 16 and O Ring 15 along the grub screw 18 U Screw grub screw with pre assembled components in cylinder threaded hole using an Allen wrench Pay attention screw starting form rounded end grub screw V See angle setting procedure on section 8 W Grease O Ring 11 X Rest Namur plate 13 to cylinde...

Страница 29: ...rective in the limits of its Classification and Zone Classification A Equipment classification Equipment Group II Category 2 Gas Zone 1 2 Dust Zone 21 22 Type of protection Ex h with constructional safety c Gas group IIC IIB with non conductive coating thickness 0 2mm Dust group IIIC Temperature Class T6 T3 as per following table EPL Gb Gas Db Dust T max fluid and T max ambient Temperature Class M...

Страница 30: ... storage It is recommended to keep actuators in a dry and clean environment at temperatures 10 C 60 C 14 F 140 F Actuators have two air ports which are closed by labels for prevent dust or solid particles incoming during storage If actuators should be stored for a long period before installation it is recommended to stroke them periodically to prevent seals damages 14 TROUBLE SHOOTING Potential ef...

Страница 31: ...ines should be followed Metal components aluminium steel can be recovered disposed as raw material Sealing elements such as Or Ring or Gaskets NBR FPM FVMQ as contaminated by fluids or lubricants must be disposed of Packaging materials should be transferred to separate waste collection system available in the Country 16 DECLARATION OF CONFORMITY OMAL S p A actuators have been designed manufactured...

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