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background image

EB 8317 EN

5-5

Installation

A60

2

A33/A51

A54

2

Valve bonnet

A33/A51 Rod
A54

Rod nut

A60

Plate

Fig. 5-4:

Mounting using rods (form C), 350 cm²

5.3 Changing the mounting

type

The mounting type of actuators with 120 cm²
actuator area can be changed subsequently.

The table in 'Mounting types' in the 'Design
and principle of operation' section provides
an overview of the possible combinations
(form B and form C).

5.3.1 Changing the mounting

type to mounting using

rods (form B to form C)

For mounting the rods, two bushings (A12)

are required to adapt it to the rod diameter.

1. Remove the clamps of the stem connec-

tor.

2.  Unscrew the central nut (98).
3.  Lift the actuator off the valve bonnet (2).
4.  Undo the rod nuts (A72).
5.  Remove the crossbeam (A17).
6.  Screw bushings (A12) onto the thread of

the rods.

7. Place the rods (A11) with the bushings

(A12) screwed onto them on the valve
bonnet (2). Place the rod nuts (A72) on
the bushings (A12) and tighten in alter-
nating sequence. Observe tightening
torques.

8.

Fail-safe action "stem extends":

position

the stem connector clamps and screw
them tight. Observe tightening torques.

Fail-safe action "stem retracts":

apply

pressure to the top diaphragm chamber
until the actuator stem touches the plug
stem. Position the clamps of the stem con-

Note

Note

«
...
27
28
29
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31
...
»

Содержание 3371 Series

Страница 1: ...Translation of original instructions EB 8317 EN Type 3371 Pneumatic Actuator Actuator area 120 and 350 cm Edition April 2021 Type 3371 with 120 cm actuator area Type 3371 with 350 cm actuator area ...

Страница 2: ...t you in mounting and operating the device safely The instructions are binding for handling SAMSON devices The images shown in these instructions are for illustration purposes only The actual product may vary Î For the safe and proper use of these instructions read them carefully and keep them for later reference Î If you have any questions about these instructions contact SAMSON s After sales Ser...

Страница 3: ... retracts 3 4 3 4 Mounting types 3 4 3 5 Versions 3 6 3 6 Accessories 3 6 3 7 Technical data 3 6 4 Shipment and on site transport 4 1 4 1 Accepting the delivered goods 4 1 4 2 Removing the packaging from the actuator 4 1 4 3 Transporting and lifting the actuator 4 1 4 3 1 Transporting the actuator 4 2 4 3 2 Lifting the actuator 4 2 4 4 Storing the actuator 4 3 5 Installation 5 1 5 1 Preparation fo...

Страница 4: ... conversion work 9 2 9 3 Mounting the actuator on the valve after service or conversion work 9 3 9 4 Service work 9 3 9 4 1 Replacing the diaphragm 9 3 9 5 Conversion work 9 8 9 5 1 Reversing the direction of action fail safe action 9 8 9 6 Ordering spare parts and operating supplies 9 9 10 Decommissioning 10 1 11 Removal 11 1 11 1 Removing the actuator from the valve 11 2 11 2 Relieving the sprin...

Страница 5: ...purpose or for damage caused by external forces or any other external factors Î Refer to the technical data and nameplate for limits and fields of application as well as possible uses Reasonably foreseeable misuse The actuator is not suitable for the following applications Use outside the limits defined during sizing and by the technical data Use outside the limits defined by the accessories conne...

Страница 6: ...operating personnel must prevent hazards that could be caused in the actuator by the signal pressure stored spring energy or moving parts by taking appropriate precautions Plant operators and operating personnel must observe all hazard statements warning and caution notes in these mounting and operating instructions Responsibilities of the operator Operators are responsible for proper use and comp...

Страница 7: ...ecified in Clause 6 4 of EN 60079 14 VDE 0165 1 Referenced documentation The following documents apply in addition to these mounting and operating instructions Mounting and operating instructions for the mounted valve e g u EB 8111 for SAMSON Type 3321 Valve Mounting and operating instructions for mounted valve accessories positioner solenoid valve etc u AB 0100 for tools tightening torques and lu...

Страница 8: ... hands or finger into the yoke or beneath the actuator stem while the air supply is connected to the actuator Î While working on the actuator disconnect and lock the pneumatic air supply as well as the control signal Î Do not impede the movement of the actuator stem by inserting objects into the yoke Î Before unblocking the actuator stem after it has become blocked e g due to seizing up after rema...

Страница 9: ... compression from the preload ed springs See Relieving the spring compression in the actuator in the Removal section Exposure to hazardous substances poses a serious risk to health Certain lubricants and cleaning agents are classified as hazardous substances These substances have a special label and a material safety data sheet MSDS issued by the manufacturer Î Make sure that an MSDS is available ...

Страница 10: ...roved by SAMSON u AB 0100 Risk of actuator damage due to the use of unsuitable lubricants The lubricants to be used depend on the actuator material Unsuitable lubricants may corrode and damage surfaces Î Only use lubricants approved by SAMSON u AB 0100 1 4 Warnings on the device Warning Meaning of the warning Location on the device Warning to indicate that the springs in the actuator are preloaded...

Страница 11: ...y the device see Fig 2 2 1 Type number 2 Configuration ID 3 Serial number 4 Permissible supply pressure pmax in bar psi 5 Bench range in bar 6 Bench range in psi 7 Operating travel in mm 8 Symbol indicating fail safe action Actuator stem extends FA Actuator stem retracts FE 9 Date of manufacture month and year 10 Actuator area Nameplate Fig 2 1 Nameplate on actuator housing SAMSON 3371 Pneumatic A...

Страница 12: ...2 2 EB 8317 EN ...

Страница 13: ... springs and diaphragm plate are ar ranged in the actuator With direction of ac tion actuator stem retracts the compressed air is applied to the signal pressure connec tion on the top diaphragm case With direc tion of action actuator stem extends the compressed air is applied to the signal pres sure connection on the bottom diaphragm case The direction of action can be reversed see the Service and...

Страница 14: ...essure is reduced or the control signal fails the fail safe position of the control valve depends on whether the springs are installed in the top or bottom di aphragm chamber A1 Vent plug A2 Bottom diaphragm case A3 Actuator stem A10 Spring A11 Rod A12 Bushing A13 Diaphragm plate A14 Diaphragm plate A16 Top diaphragm case A17 Bracket A18 Diaphragm A26 Collar nut A30 A31 Stem connector clamps A35 P...

Страница 15: ... bolt A21 Hex nut A25 Washer A27 Compressor A33 Stem A40 Radial shaft seal A41 Wiper ring A42 Dry bearing A50 Screw for rod A51 A51 Rod A54 Rod nut A60 Plate A61 Pneumatic connection S Signal pressure connection stem retracts A61 A10 A1 A5 S A2 A1 A4 A33 A7 A15 A51 A60 A54 A50 A25 A20 A21 A27 A41 A42 A40 Fig 3 2 Functional diagram of Type 3371 Actuator with 350 cm actuator area ...

Страница 16: ...loses when the signal pressure is increased enough to overcome the spring force 3 4 Mounting types There are two types of mounting depending on the valve actuator combination mount ing using a crossbeam or mounting using rods see Table 3 1 When the actuator is mounted to the valve using a crossbeam form B Fig 3 3 the ac tuator is fastened to the valve bonnet using a central nut When the actuator i...

Страница 17: ...rea 120 cm 350 cm Travel 15 mm 15 mm 30 mm Type Valve Valve size DN 3321 15 to 50 Form B 3321 65 to 100 Form C Form C 3321 100 Form C 3323 15 to 50 Form B 3323 65 to 80 Form C 3323 100 Form C 3531 15 to 80 Form B 3535 15 to 80 Form B Fig 3 4 Form C mounting using rods 120 cm Fig 3 5 Form C mounting using rods 350 cm ...

Страница 18: ...s A special lifting tool is available to lift pneu matic actuators with 120 and 350 cm actu ator areas u AB 0100 Vent plugs Vent plugs are screwed into the exhaust air ports of pneumatic and electropneumatic de vices They ensure that any exhaust air that forms can be vented to the atmosphere to avoid excess pressure in the device Further more the vent plugs allow air intake to pre vent a vacuum fr...

Страница 19: ...racts FE Stem retracts FE Stem extends FA Stem extends FA Stem retracts FE Stem extends FA Stem retracts FE Stem extends FA Bench range in bar 0 4 to 1 4 1 4 to 2 3 2 1 to 3 3 1 5 to 2 1 2 1 to 2 7 1 5 to 2 7 2 2 to 3 8 Supply pressure See the Operation section for restrictions Ambient temperature range 35 to 90 C 35 to 90 C Dimensions Refer to Fig 3 6 Refer to Fig 3 7 Approx weight 3 3 kg 15 kg M...

Страница 20: ...3 8 EB 8317 EN ...

Страница 21: ...s and the Tech nical data section 4 2 Removing the packaging from the actuator Observe the following sequence Î Do not open or remove the packaging until immediately before mounting the actuator Î Leave the actuator in its transport con tainer or on the pallet to transport it on site Î Dispose and recycle the packaging in ac cordance with the local regulations 4 3 Transporting and lifting the actu...

Страница 22: ...tions Transport instructions Protect the actuator against external in fluences e g impact Do not damage the corrosion protection paint surface coatings Repair any damage immediately Protect the actuator against moisture and dirt The permissible transportation tempera ture is between 20 and 65 C 4 3 2 Lifting the actuator Due to the low service weight lifting equip ment is not required to lift the ...

Страница 23: ...uator in the stored position against slipping or tipping over Do not damage the corrosion protection paint surface coatings Repair any damage immediately Protect the actuator against moisture and dirt Store it at a relative humidity of less than 75 In damp spaces prevent con densation If necessary use a drying agent or heating Make sure that the ambient air is free of acids or other corrosive medi...

Страница 24: ...4 4 EB 8317 EN ...

Страница 25: ...elivered separately When delivered separately the valve and actuator must be assembled together on site Proceed as follows to mount the actuator and before start up Risk of personal injury due to exhaust air being vented The actuator is operated with air As a result air is vented during operation Î During mounting make sure that vent openings are not located at eye level in the work position of th...

Страница 26: ... 0100 Risk of actuator damage due to the use of unsuitable tools Î Only use tools approved by SAMSON u AB 0100 NOTICE NOTICE A1 Vent plug A2 Bottom diaphragm case A3 Actuator stem A10 Spring A11 Rod A12 Bushing A13 Diaphragm plate A14 Diaphragm plate A16 Top diaphragm case A17 Crossbeam A18 Diaphragm A26 Collar nut A30 A31 Stem connector clamps A35 Pneumatic connection A72 Rod nut Mounting with cr...

Страница 27: ...and fasten it to the valve bonnet Observe tightening torques 5 Fail safe action stem extends position the stem connector clamps A30 and screw them tight Observe tightening torques Fail safe action stem retracts apply pressure to the top diaphragm chamber until the actuator stem touches the plug stem Position the stem connector clamps A30 and screw them tight Observe tightening torques Mounting usi...

Страница 28: ...nuts A54 from the rods A33 A51 Leave the plate A60 at tached to the rods 3 Place the actuator with the rod ends on the valve bonnet 2 4 Tighten the rod nuts A54 in alternating sequence Make sure that the rods on the bottom case do not turn Observe tight ening torques 5 Fail safe action stem extends position the stem connector clamps and screw them tight Observe tightening torques Fail safe action ...

Страница 29: ...ed to adapt it to the rod diameter 1 Remove the clamps of the stem connec tor 2 Unscrew the central nut 98 3 Lift the actuator off the valve bonnet 2 4 Undo the rod nuts A72 5 Remove the crossbeam A17 6 Screw bushings A12 onto the thread of the rods 7 Place the rods A11 with the bushings A12 screwed onto them on the valve bonnet 2 Place the rod nuts A72 on the bushings A12 and tighten in alter nat...

Страница 30: ...n the stem connector clamps and screw them tight Observe tightening torques Fail safe action stem retracts apply pressure to the top diaphragm chamber until the actuator stem touches the plug stem Position the clamps of the stem con nector and screw them tight Observe tightening torques 5 4 Pneumatic connection Determine the lower and upper signal pres sure range values before connecting the sup p...

Страница 31: ...on b Actuator stem retracts 1 Apply a signal pressure that corresponds to the upper signal pressure range value to the connection on the top diaphragm case 2 Screw the vent plug into the connection on the bottom diaphragm case ...

Страница 32: ...5 8 EB 8317 EN ...

Страница 33: ...instructions and measures section Î Only open the actuator following the in structions in this document See Reliev ing the spring compression in the actua tor in the Removal section Risk of personal injury due to exhaust air being vented The actuator is operated with air As a result air is vented during operation Î Wear eye and hearing protection when working near the actuator Crush hazard arising...

Страница 34: ...tools Î Only use tools approved by SAMSON u AB 0100 6 1 Spring compression By preloading the springs in the actuator the following can be achieved The thrust is increased only actuators with stem extends In combination with a SAMSON valve the actuator travel range can be adapted to a smaller valve travel range 6 1 1 Tensioning the springs Risk of actuator damage due to the springs being tensioned ...

Страница 35: ...rated travels Depending on the di rection of action proceed as follows Direction of action actuator stem extends Always use actuators with preloaded springs when the valve s rated travel is smaller than the rated travel of the actuator Example DN 15 valve with 7 5 mm rated travel and 120 cm actuator with 15 mm rat ed travel 1 4 to 2 3 bar bench range The signal pressure for half the actuator trav ...

Страница 36: ... 8317 EN Start up Example DN 15 valve with 7 5 mm rated travel and 120 cm actuator with 15 mm rat ed travel 1 4 to 2 3 bar bench range At half the valve travel the operating range is between 1 4 and 1 85 bar ...

Страница 37: ...or in the Removal section Risk of personal injury through incorrect operation use or installation as a result of incorrect information on the actuator After any adjustment or conversion work the details on the actuator nameplate may no longer be correct This may apply for example to the configuration ID or the symbol after reversal of the direction of action Î Immediately renew any nameplates or l...

Страница 38: ... not exceed the upper bench range value by more than 1 5 bar 7 3 Additional notes con cerning operation Î Label actuator with reduced supply pres sure with a sticker Max supply pres sure limited to bar Î Only apply the signal pressure to the sig nal pressure connection S on the dia phragm chamber of the actuator which does not contain any springs see Fig 3 1 and Fig 3 2 in the Design and principle...

Страница 39: ...nblocking the actuator stem release any stored energy in the actuator e g spring compression See Relieving the spring compression in the actuator in the Removal section Insufficient signal pressure Check the signal pressure Check the signal pressure line for leakage Signal pressure not connected to the correct diaphragm chamber See Signal pressure routing in the Design and principle of operation s...

Страница 40: ...8 2 EB 8317 EN Malfunctions 8 2 Emergency action Plant operators are responsible for emergen cy action to be taken in the plant ...

Страница 41: ...ator following the in structions in this document See Reliev ing the spring compression in the actua tor in the Removal section Risk of personal injury due to exhaust air being vented The actuator is operated with air As a result air is vented during operation Î Wear eye and hearing protection when working near the actuator Crush hazard arising from the moving actuator stem Î Do not insert hands o...

Страница 42: ... the use of unsuitable lubricants Î Only use lubricants approved by SAMSON u AB 0100 The product warranty becomes void if ser vice or repair work not described in these instructions is performed without prior agreement by SAMSON s After sales Ser vice Only use original spare parts by SAMSON which comply with the original specifications 9 1 Periodic testing Depending on the operating conditions che...

Страница 43: ...r lower bench range values see the Start up section 9 4 Service work See Fig 9 1 and Fig 9 2 9 4 1 Replacing the dia phragm a 120 cm actuator area Actuator stem extends 1 Lift off the top diaphragm case A16 and remove springs A10 2 Pull the actuator stem A3 together with the diaphragm plate A14 diaphragm A18 and diaphragm plate A13 out of the bottom diaphragm case A2 3 Unscrew the collar nut A26 4...

Страница 44: ...ply a suitable lubricant to the actuator stem A3 10 Place the actuator stem A3 together with the diaphragm plate A14 dia phragm A18 and diaphragm plate A13 in the bottom diaphragm case A2 Make sure that the radial shaft seal A40 is not damaged 11 Place on the top diaphragm case A16 12 Fasten the top and bottom diaphragm cases A16 A2 together using the nuts A24 and bolts A22 Observe tighten ing tor...

Страница 45: ...ft off the top diaphragm case A1 2 Pull the actuator stem A7 together with the diaphragm plate A5 and dia phragm A4 out of the bottom dia phragm case A2 3 Unscrew the collar nut A15 4 Take the compressor A27 diaphragm plate A5 and diaphragm A4 off the actuator stem A7 5 Place the new diaphragm on the dia phragm plate A5 6 Place the compressor A27 onto the ac tuator stem A7 7 Check the sealing elem...

Страница 46: ...ate A14 Diaphragm plate A16 Top diaphragm case A17 Crossbeam A18 Diaphragm A26 Collar nut A30 A31 Stem connector clamps A35 Pneumatic connection A72 Rod nut Mounting with crossbeam Mounting without crossbeam A31 A72 A12 A3 A30 A26 A10 A18 A13 A14 A11 A2 A16 A35 A1 A17 Fig 9 1 Functional diagram of Type 3371 Actuator with 120 cm actuator area ...

Страница 47: ... A21 Hex nut A25 Washer A27 Compressor A33 Stem A40 Radial shaft seal A41 Wiper ring A42 Dry bearing A50 Screw for rod A51 A51 Rod A54 Rod nut A60 Plate A61 Pneumatic connection S Signal pressure connection stem retracts A61 A10 A1 A5 S A2 A1 A4 A33 A7 A15 A51 A60 A54 A50 A25 A20 A21 A27 A41 A42 A40 Fig 9 2 Functional diagram of Type 3371 Actuator with 350 cm actuator area ...

Страница 48: ...ut A26 4 Remove the diaphragm plate A14 dia phragm A18 and diaphragm plate A13 from the actuator stem A3 and place them back on again in the reverse order 5 Tighten the collar nut A26 Observe tightening torques 6 Apply a suitable lubricant to the actuator stem A3 7 Place the springs A10 in the bottom di aphragm case A2 centering them in the intended recesses 8 Place the actuator stem A3 together w...

Страница 49: ...prings A10 in the bottom di aphragm case A2 centering them in the intended recesses 10 Place on the top diaphragm case A16 11 If necessary preload the springs see the Start up section 12 Fasten the top and bottom diaphragm cases A16 A2 together using the nuts A24 and bolts A22 Observe tighten ing torques The actuator springs which now push against the diaphragm plate from above cause the actuator ...

Страница 50: ...9 10 EB 8317 EN ...

Страница 51: ... ing the spring compression in the actua tor in the Removal section Risk of personal injury due to exhaust air being vented The actuator is operated with air As a result air is vented during operation Î Wear eye and hearing protection when working near the actuator Crush hazard arising from the moving actuator stem Î Do not insert hands or finger into the yoke while the air supply is connected to ...

Страница 52: ...10 2 EB 8317 EN ...

Страница 53: ...ons in this document See Reliev ing the spring compression in the actua tor in the Removal section Risk of personal injury due to exhaust air being vented The actuator is operated with air As a result air is vented during operation Î Wear eye and hearing protection when working near the actuator Crush hazard arising from the moving actuator stem Î Do not touch the actuator stem or insert hands or ...

Страница 54: ...s A31 from the actuator 2 Undo the rod nuts A72 in alternating sequence 3 Pull the rods A11 with bushings A12 out of the holes in the valve bonnet 2 4 Remove the bushings A12 from the ac tuator and thread the rod nuts A72 on to the rods A11 5 Screw tight the stem connector clamps A31 onto the actuator b 350 cm actuator area 1 In the actuator stem retracts version detach the external piping 2 Remov...

Страница 55: ...uding the washers on the dia phragm cases 2 Loosen the long clamping nuts and bolts on the diaphragm cases evenly in a crisscross pattern to gradually relieve the spring compression Hold the bolt head stationary with a suitable tool and apply the torque to the nuts Clamping bolt Clamping nut Short bolt Short nut Washer Washer Fig 11 1 Preloaded springs ...

Страница 56: ...11 4 EB 8317 EN ...

Страница 57: ...ce Support After sales Service 2 Send an e mail u retouren samsongroup com to register the return shipment including the following information Type Article no Configuration ID Original order Completed Declaration on Contamination which can be downloaded from our website at u www samsongroup com Service Support After sales Service After checking your registration we will send you a return merchandi...

Страница 58: ...12 2 EB 8317 EN ...

Страница 59: ...EB 8317 EN 13 1 Disposal 13 Disposal Î Observe local national and internation al refuse regulations Î Do not dispose of components lubricants and hazardous substances together with your household waste ...

Страница 60: ...13 2 EB 8317 EN ...

Страница 61: ...pe 3371 Pneumatic Actuators with 120 and 350 cm actuator areas is provided on the next page The certificates shown were up to date at the time of publishing The latest certificates can be found on our website u www samsongroup com Products Applications Product selector Actuators 3371 Other optional certificates are available on request ...

Страница 62: ...14 2 EB 8317 EN ...

Страница 63: ... shaft seal 2 3 Wiper ring 2 4 Dry bearing 3 Actuator stem 4 Stopper 5 Label preloading 6 Nameplate 7 8 9 10 Spring 11 Rod 12 Bushing 13 Diaphragm plate 14 Diaphragm plate 16 Top diaphragm case 17 Crossbeam 18 Diaphragm 20 Screw plug 21 Screw on cap 22 Hex bolt 23 Hex bolt 24 Hex nut 25 Hex nut 26 Collar nut 27 Washer 28 Serrated lock washer 30 31 Stem connector clamps 35 Pneumatic connection 37 R...

Страница 64: ...15 2 EB 8317 EN 5 4 16 24 21 7 8 9 10 26 14 18 2 6 22 23 27 13 Type 3371 Actuator with 120 cm actuator area ...

Страница 65: ...EB 8317 EN 15 3 2 4 2 2 2 3 35 11 20 1 3 30 17 28 25 70 31 3 72 12 11 35 20 1 Mounting without crossbeam Mounting with crossbeam ...

Страница 66: ...Stem connector clamp 14 Screw 15 Collar nut 16 Vent plug 20 Hex bolt 21 Hex nut 22 Hex bolt preloading 25 Washer 27 Compressor 33 Rod 37 Washer 40 Radial shaft seal 41 Wiper ring 42 Dry bearing 50 Screw for rod 51 51 Rod 52 Washer version with actuator stem retracts only 53 O ring 54 Rod nut 55 Bushing 56 Retaining ring 57 O ring 60 Plate 61 Pneumatic connection 100 Nameplate 101 Label preloading ...

Страница 67: ...EB 8317 EN 15 5 Type 3371 Actuator with 350 cm actuator area 25 20 50 2 33 13 51 54 60 25 21 53 61 14 56 16 37 22 1 41 7 11 10 15 5 4 27 40 55 42 57 12 101 100 52 ...

Страница 68: ...d iaries The addresses of SAMSON AG its subsid iaries representatives and service facilities worldwide can be found on our website www samsongroup com or in all SAMSON product catalogs Required specifications Please submit the following details Order number and position number in the order Type model number actuator area trav el direction of action and bench range e g 0 2 to 1 bar or the operating...

Страница 69: ......

Страница 70: ...2022 01 04 English SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samsongroup com www samsongroup com EB 8317 EN ...

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