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_____________________________________________________________________________________ 

STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY        www.imi-critical.com 

 

Manual 5100, rev. 06    06/2020 – RTC/RTCS 

 

ii

 

INDEX 

1

 

GENERAL INFORMATION................................................................................................................................ 1

 

1.1

 

G

ENERAL 

W

ARNINGS

.................................................................................................................................... 1

 

1.2

 

G

ENERALITIES

 ............................................................................................................................................. 1

 

1.3

 

M

ANUFACTURER

 ......................................................................................................................................... 1

 

1.4

 

T

ERMS AND CONDITIONS

 ............................................................................................................................... 1

 

1.5

 

M

ANUFACTURER

’

S 

L

IABILITY

........................................................................................................................... 1

 

1.6

 

A

PPLICABLE 

S

TANDARDS AND 

D

IRECTIVES

 .......................................................................................................... 2

 

1.6.1

 

General Standards ........................................................................................................................... 2

 

1.6.2

 

European Directives (mandatory only for installations in EU Countries) ............................................ 2

 

1.7

 

S

YMBOLOGY 

U

SED

 ....................................................................................................................................... 2

 

1.7.1

 

Signs of warning .............................................................................................................................. 2

 

1.7.2

 

Signs of obligation ........................................................................................................................... 2

 

2

 

DEVICE DESCRIPTION ..................................................................................................................................... 3

 

2.1

 

G

ENERAL 

D

ESCRIPTION

 ................................................................................................................................. 3

 

2.2

 

I

DENTIFICATION OF THE 

M

AIN 

P

ART

 ................................................................................................................. 3

 

2.3

 

A

CTUATOR CODING DESCRIPTION

 ..................................................................................................................... 4

 

3

 

TECHNICAL DATA ........................................................................................................................................... 5

 

4

 

NAMEPLATE ................................................................................................................................................... 5

 

5

 

INSTALLATION ................................................................................................................................................ 6

 

5.1

 

T

RANSPORT

 ................................................................................................................................................ 6

 

5.2

 

R

ECEPTION

................................................................................................................................................. 7

 

5.3

 

S

TORAGE

 ................................................................................................................................................... 7

 

5.4

 

R

EQUIREMENTS OF 

S

TABILITY

 ......................................................................................................................... 7

 

5.5

 

I

NTERFACE DOCUMENT AND DIMENSIONAL DRAWING

............................................................................................ 7

 

5.6

 

I

NSTALLATION

 ............................................................................................................................................. 8

 

5.6.1

 

Checks to be performed before installation ...................................................................................... 8

 

5.6.2

 

Assembling of the actuator on the valve .......................................................................................... 8

 

5.6.3

 

Pneumatic Connections ................................................................................................................... 9

 

5.6.4

 

Electrical Connections (If any) ........................................................................................................ 10

 

5.6.5

 

Hearting connection ...................................................................................................................... 10

 

5.7

 

D

ISASSEMBLING

 ........................................................................................................................................ 10

 

6

 

OPERATION AND USE ................................................................................................................................... 11

 

6.1

 

O

PERATION DESCRIPTION

............................................................................................................................. 11

 

6.2

 

I

NTENDED USE

 .......................................................................................................................................... 11

 

6.3

 

R

EASONABLY FORESEEABLE MISUSE

 ................................................................................................................ 11

 

6.4

 

O

PERATING LIMITS

 ..................................................................................................................................... 12

 

6.5

 

R

ESIDUAL 

R

ISKS

......................................................................................................................................... 12

 

7

 

INSTRUCTIONS FOR THE OPERATOR............................................................................................................. 13

 

7.1

 

S

TART 

U

P

 ................................................................................................................................................ 13

 

7.2

 

S

TROKE ADJUSTMENT

 ................................................................................................................................. 13

 

7.3

 

M

ECHANICAL MANUAL OVERRIDE 

(I

F ANY

) ....................................................................................................... 15

 

7.4

 

D

ECLUTCHABLE MECHANICAL MANUAL OVERRIDE 

(I

F ANY

) ................................................................................... 16

 

7.5

 

P

OSITION OF 

M

ECHANICAL MANUAL OVERRIDE

 ................................................................................................. 16

 

7.5.1

 

Double acting version (RTC) ........................................................................................................... 17

 

7.5.2

 

Single acting version spring to close (RTCS_CL) ............................................................................... 17

 

7.5.3

 

Single acting version spring to open (RTCS_OP) .............................................................................. 17

 

Содержание STI RTC Series

Страница 1: ...Quarter turn pneumatic actuator RTC Series Double acting version type RTC Single acting version type RTCS INSTRUCTION MANUAL 5100...

Страница 2: ...ection 4 G Alfieri A Negri 05 09 2016 5 Revision M Bozzarelli F Tondolo 15 02 2016 4 Revision M Bozzarelli D Lamoure 22 09 2015 3 Revision M Bozzarelli D Lamoure 22 07 2013 2 Revision G Alfieri D Lamo...

Страница 3: ...NAMEPLATE 5 5 INSTALLATION 6 5 1 TRANSPORT 6 5 2 RECEPTION 7 5 3 STORAGE 7 5 4 REQUIREMENTS OF STABILITY 7 5 5 INTERFACE DOCUMENT AND DIMENSIONAL DRAWING 7 5 6 INSTALLATION 8 5 6 1 Checks to be perfor...

Страница 4: ...19 8 3 REPAIRS 23 8 4 REASSEMBLING 23 8 4 1 Pneumatic cylinder re assembling 23 8 4 2 Actuator re assembling 24 8 5 MECHANISM LUBRIFICATION 24 8 5 1 Scotch yoke mechanism see Paragraph 8 4 2 24 8 5 2...

Страница 5: ...pect to Machinery Directive 2006 42 EC the Manufacturer of the described RTC RTCS actuator series is STI S r l as specified on the machinery label STI S r l Via Dei Caravaggi 15 24040 Levate BG Italy...

Страница 6: ...rective relating to the Electromagnetic Compatibility EMC 2014 34 EU Directive concerning equipment for use in potentially explosive atmospheres ATEX Applicable only when electrical control panel is s...

Страница 7: ...ends by means of the external mechanical stops arranged into the side wall of the mechanism body and into the end flange of the pneumatic cylinder Scotch yoke mechanism centerbody cover is machined t...

Страница 8: ...essories Manual Handw heel canted Diameter 255 mm Diameter 75 mm Diameter 100 mm Diameter 125 mm Diameter 135 mm Diameter 200 mm Diameter 235 mm Diameter 300 mm Model 01 Model 02 Model 03 S Model 01 M...

Страница 9: ...n customer requirements and specifications Max Output torque RTC 01 Series up to 1100 Nm RTC 02 Series up to 3000 Nm RTC 03 Series up to 6000 Nm Applications On Off Modulating service on request 1 Rec...

Страница 10: ...fastening points are appropriate for the lifting of the actuator alone and not for the valve actuator assembly Warning Avoid that during the handling the actuator passes above the staff The actuator...

Страница 11: ...stallation follow these steps Place it on a wood surface pallet or on metallic support so that they are not in direct contact with the ground in order not to deteriorate the area of valve coupling lat...

Страница 12: ...g block flange and joint especially all traces of grease 5 6 2 Assembling of the actuator on the valve The actuator can be assembled on top of the valve flange either by using the actuator housing fla...

Страница 13: ...4 x M16 180 M12 70 M42 3 000 RTC S 03 F16 4 x M20 340 M16 180 M20 340 M24 550 1 The torque values in Tables 1 and 2 have been calculated considering the standard bolting made in Carbon Steel according...

Страница 14: ...plugs 5 6 5 Hearting connection If the hearting connection is not guaranteed trough mechanical parts where actuator is mounted it is necessary ensure a directly hearting connection on provided point o...

Страница 15: ...th a product designation code STI S r l will not be liable for any possible damage or physical injury resulting from use in other than the designated applications or by lack of care during installatio...

Страница 16: ...tor under conditions other than those provided on the nameplate 6 5 Residual Risks Warning The actuator has parts under pressure Use the due caution Use individual protections provided for by the laws...

Страница 17: ...lves etc meet the plant requirements Check that there are not leak in the pneumatic connections If necessary tighten the nuts of the pipe fittings Remove all rust and in accordance with the applicable...

Страница 18: ...tight the travel stop protection 3 3 against the cylinder end flange keeping the stopper screw 3 1 locked Screw the plug 3 4 into the travel stop protection 3 3 For the open position adjustment on the...

Страница 19: ...kwise the hand wheel 1 in the end flange to open main valve taking care the handwheel 2 on the centerbody is not engaged and turn clockwise the hand wheel 2 in the centerbody flange to close main valv...

Страница 20: ...ter 8 5 for grease specifications 7 4 Declutchable mechanical manual override If any For manual operation push down the handle Fig 9 and turn the handwheel following the instruction described in parag...

Страница 21: ...rev 06 06 2020 RTC RTCS 17 7 5 1 Double acting version RTC 7 5 2 Single acting version spring to close RTCS_CL 7 5 3 Single acting version spring to open RTCS_OP MANUAL OVERRIDE DISENGAGED VALVE BLOCK...

Страница 22: ...drain cock Disassemble the cup periodically and wash it with soap and water disassemble the filter if this is made up of a sintered cartridge wash it with nitrate solvent and blow through with air If...

Страница 23: ...d Disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve Close the pneumatic feed line an...

Страница 24: ...perform these actions disassemble the plug 1 7 so that replace the o ring 1 23 To replace the cover gasket 1 11 under the cover 1 12 you should remove it by removing all the screws and dowel pins 1 14...

Страница 25: ...tween cylinder and actuator is necessary to remove the screws 1 10 and disassemble the pneumatic cylinder 8 2 1 2 Pneumatic cylinder seals replacement of single acting actuator Warning To release spri...

Страница 26: ...Before re assemble clean all seal grooves carefully and lubricate them with protective oil or grease film Fig 14 Pneumatic cylinder seals replacement of single acting actuator Check that the pneumatic...

Страница 27: ...wn in the next Section 7 To ensure that right spare is provided serial number printed on the RTC series label must be specified when spares are ordered 8 4 Reassembling 8 4 1 Pneumatic cylinder re ass...

Страница 28: ...ecommended torque using a wrench Assemble the o ring the cover gasket and the cover with all screw Recommended tighten torque Table in Section 5 6 2 Important After maintenance operations carry out a...

Страница 29: ...settings Adjust speed controls to increase flow Exhaust port blocked Remove and clean the exhaust port silencers and replace Wear of the main valve Consult valve manufacturer documentation Actuator t...

Страница 30: ...0 PARTS LIST GENERAL ASSEMBLY This section includes the drawings and parts lists of each component and subassembly of RTC series Important When ordering spare parts please indicate the serial number e...

Страница 31: ...teel 2 Bushing 2 Steel Bronze PTFE 3 Scotch yoke 1 Alloy steel 4 Guide block assembly 1 Carbon steel Bronze 5 O ring 2 NBR 6 Guide bar 1 Alloy steel 7 Plug 1 Carbon steel 8 Spacer 1 Carbon steel 9 Scr...

Страница 32: ...arts 1 Bushing 1 Steel Bronze PTFE 2 Cylinder tube 1 Carbon steel 3 Flange 1 Carbon steel 4 Flange 1 Carbon steel 5 Nut 4 Carbon steel 6 Lifting eyelet 1 Carbon steel 7 Sliding guide 2 PTFE 8 Piston 1...

Страница 33: ...3 Cylinder tube 1 Carbon steel 4 Spacer tube 1 Carbon steel 5 Elastic pin 6 Carbon steel 6 Flange 1 Carbon steel 7 Flange 1 Carbon steel 8 Nut 4 Carbon steel 9 Lifting eyelet 1 Carbon steel 10 Spring...

Страница 34: ...imi critical com Manual 5100 rev 06 06 2020 RTC RTCS 30 Stop protection assembly Stop protection assembly part list Item Description Qty Material Spare Parts 1 Plug 1 Stainless steel 2 Travel stop sc...

Страница 35: ...TI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 5100 rev 06 06 2020 RTC RTCS 31 Stop setting screw kit Stop setting screw kit part list Item Description Qty Material Sp...

Страница 36: ...assembly part list Item Description Qty Material Spare Parts 1 Elastic ring 1 Carbon steel 2 Travel stop 1 Aluminium bronze 3 Spacer 1 Carbon steel 4 Washer 1 Carbon steel 5 Stopper protection 1 Stai...

Страница 37: ...l kit including all the recommended spares can be ordered directly to STI S r l provided that serial number of the actuator or specific purchasing order for the original actuator is indicated in the r...

Страница 38: ...The demolition of actuator parts should be made from specialized personnel Before starting a large area should be created around the actuator so to allow any kind of movement without problems of furth...

Страница 39: ..._____________________________________________________________________ STI S r l Via Dei Caravaggi 15 24040 Levate BG ITALY www imi critical com Manual 5100 rev 06 06 2020 RTC RTCS 35 13 Declaration of...

Страница 40: ...e Via San Francesco 18 29017 Fiorenzuola d Arda PC Italy Tel 39 035 2928 2 Fax 39 0523 1715 295 IMI Critical Engineering Lakeside Solihull Parkway Birmingham Business Park Birmingham B37 7XZ United Ki...

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