Samson 2780-1 Скачать руководство пользователя страница 40 | Manualshive

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Samson 2780-1 Скачать руководство пользователя страница 40

10-2

EB 5840 EN

Removal

10.1 Removing the actuator

from the valve

See Fig. 5‑1 in the 'Mounting' section.

1.

Removing actuators with "stem ex-

tends" action with/without preloaded

springs:

to loosen the coupling nut

(A23), apply approx. 50 % signal pres‑
sure to open the valve.

2.

Loosen the coupling nut (A23) on the
actuator stem (A1) and plug stem (15).

3.

Disconnect the signal pressure again.

4. Lift the actuator off the valve.

5.

Slide the coupling nut (A23) onto the
actuator stem (A1) and tighten it.

6. Screw tight the nut (12) on the valve.

10.2 Relieving the spring com-

pression in the actuator

1. Unthread the short nuts and bolts on the

diaphragm cases.

2.

Loosen the the long nuts and bolts on the
diaphragm cases evenly in a crisscross

pattern.

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Содержание 2780-1

Страница 1: ...Translation of original instructions EB 5840 EN Type 2780 1 and Type 2780 2 Pneumatic Actuators Actuator area 120 cm Edition July 2019 Type 2780 1 Type 2780 2...

Страница 2: ...fter sales Service Department aftersalesservice samson de The mounting and operating instructions for the devices are included in the scope of delivery The latest documentation is available on our web...

Страница 3: ...with direction of action actuator stem retracts 3 4 3 4 Accessories 3 4 3 5 Technical data 3 4 4 Shipment and on site transport 4 1 4 1 Accepting the delivered goods 4 1 4 2 Removing the packaging fro...

Страница 4: ...5 Conversion work 8 5 8 5 1 Reversing the direction of action fail safe action 8 5 8 6 Ordering spare parts and operating supplies 8 6 9 Decommissioning 9 1 10 Removal 10 1 10 1 Removing the actuator...

Страница 5: ...by external forces or any other external factors Refer to the technical data and nameplate for limits and fields of application as well as possible uses Reasonably foreseeable misuse The actuator is n...

Страница 6: ...operating personnel must prevent hazards that could be caused in the actuator by the process medium stored spring energy or by moving parts by taking appropriate precautions They must observe all haz...

Страница 7: ...esult they do not fall within the scope of Di rective 2014 34 EU For connection to the equipotential bonding system observe the requirements specified in section 6 4 of EN 60079 14 VDE 0165 Part 1 Ref...

Страница 8: ...e hands or fingers if inserted into the actuator Do not touch the actuator stem or insert hands or finger into the yoke or beneath the actuator stem while the air supply is connected to the actuator W...

Страница 9: ...sion to be relieved evenly when disassembling the actuator Before starting any work on the actuator relieve the compression from the preload ed springs See Relieving the spring compression in the actu...

Страница 10: ...icker Parts that are not tightened far enough may loosen Observe the specified tightening torques u AB 0100 Risk of actuator damage due to the use of unsuitable tools Certain tools are required to wor...

Страница 11: ...pressure pmax 5 Bench range in bar 6 Bench range in psi 7 Operating travel in mm 8 Symbol for manual override 9 Symbol indicating fail safe action Actuator stem extends FA Actuator stem retracts FE 10...

Страница 12: ...2 2 EB 5840 EN...

Страница 13: ...f action actuator stem re tracts the compressed air is applied to the signal pressure connection on the top dia phragm case The actuator s direction of action can be re versed see the Operation sectio...

Страница 14: ...8 A8 A53 A38 A39 Switchover connecting plate A1 Actuator stem A2 Lower actuator section A5 Actuator stem A8 Diaphragm case A20 Vent plug A23 Coupling nut A25 29 Compression spring A38 Metal plate A39...

Страница 15: ...ve depends on whether the springs are installed in the top or bottom di aphragm chamber The listed fail safe actions apply to SAMSON globe valves Note Actuator stem extends Left attachment Right attac...

Страница 16: ...in dex Order no Switchover plate New 01 1400 6822 Old 00 1400 6819 Connect ing plate New 01 1400 6823 G thread 00 1400 6820 NPT thread 00 1400 6821 Actuators with device index 01 are equipped with ne...

Страница 17: ...8 84 M32 x 1 5 M32 x 1 5 50 5 50 5 73 5 Fig 3 4 Dimensional drawings Compliance The Type 2780 1 and Type 2780 2 Pneu matic Actuators bear the EAC mark of con formity Dimensions Dimensions see Fig 3 4...

Страница 18: ...3 6 EB 5840 EN...

Страница 19: ...on 4 2 Removing the packaging from the actuator Observe the following sequence Do not open or remove the packaging until immediately before mounting the actuator Dispose and recycle the packaging in a...

Страница 20: ...riods of time a Lifting the actuator without valve 1 Carefully lift the actuator If necessary check whether the lifting equipment and accessories can bear the weight 2 Move the actuator at an even pac...

Страница 21: ...ake sure that the ambient air is free of acids or other corrosive media Observe permissible temperatures see Technical data in the Design and prin ciple of operation section Do not place any objects o...

Страница 22: ...4 4 EB 5840 EN...

Страница 23: ...ely and must be assembled on site Proceed as follows to mount the actuator and prepare the start up Risk of personal injury due to exhaust air being vented The actuator is operated with air As a resul...

Страница 24: ...oceed as follows if the valve and actuator have not been assembled by SAMSON The valve and actuator are assembled with special attention paid to the actuator s bench range and direction of action Thes...

Страница 25: ...he connecting plate is correctly inserted The connecting plate has threaded holes with NPT and G threads The signal pres sure connection that is not used is sealed with the rubber seal and square plug...

Страница 26: ...15 20 1 A40 A1 A23 12 1 Guide nipple 3 Housing 5 Seat 12 Nut 15 Plug stem 20 Compression spring 32 Plug A1 Actuator stem A23 Coupling nut A40 Bottom diaphragm case Vent plug Fig 5 1 Type 2780 1 Pneuma...

Страница 27: ...the actuator Before working on the actuator discon nect and lock the pneumatic air supply as well as the control signal Do not impede the movement of the actu ator stem by inserting objects into the y...

Страница 28: ...oop operation The Type 2780 Pneumatic Actuator is de signed for a maximum supply pressure of 4 bar Only apply the signal pressure to the dia phragm chamber of the actuator that does not contain any sp...

Страница 29: ...rgy in the actuator e g spring compression See Relieving the spring com pression in the actuator in the Removal section Insufficient signal pressure Check the signal pressure Check the signal pressure...

Страница 30: ...7 2 EB 5840 EN Malfunctions 7 2 Emergency action The plant operator is responsible for emer gency action to be taken in the plant...

Страница 31: ...ottom dia phragm case They allow the spring com pression to be relieved evenly on disassem bling the actuator Only open the actuator following the in structions in this document See Reliev ing the spr...

Страница 32: ...aring out quicker Parts that are not tightened far enough may loosen Observe the specified tightening torques u AB 0100 Risk of actuator damage due to the use of unsuitable tools Only use tools approv...

Страница 33: ...rvicing and or conversion work can be performed after preparation is completed Replace the diaphragm see sec tion 8 4 1 Reverse the direction of action see sec tion 8 5 1 8 3 Mounting the actuator on...

Страница 34: ...4 Place a new diaphragm on the metal plate A38 Place on the diaphragm plate A39 5 Check the sealing element on the collar nut A53 If necessary renew it 6 Apply a suitable sealant and lubricant to the...

Страница 35: ...ove the diaphragm plate A39 to gether with the diaphragm A48 and metal plate A38 from the actuator stem A1 and place them back on again turned over 5 Tighten the collar nut A53 6 Apply a suitable seal...

Страница 36: ...om diaphragm case A40 9 Place the springs A25 in the bottom di aphragm case A40 centering them in the intended recesses 10 Place on the top diaphragm case A42 11 Fasten the top and bottom diaphragm ca...

Страница 37: ...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 Wear ey...

Страница 38: ...9 2 EB 5840 EN...

Страница 39: ...n 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...

Страница 40: ...ve 2 Loosen the coupling nut A23 on the actuator stem A1 and plug stem 15 3 Disconnect the signal pressure again 4 Lift the actuator off the valve 5 Slide the coupling nut A23 onto the actuator stem A...

Страница 41: ...Support After Sales Service 2 Send an e mail u retouren samson de to register the return shipment including the following information Type Article no Configuration ID Original order Completed Declarat...

Страница 42: ...11 2 EB 5840 EN...

Страница 43: ...EB 5840 EN 12 1 Disposal 12 Disposal Observe local national and internation al refuse regulations Do not dispose of components lubricants and hazardous substances together with your household waste...

Страница 44: ...12 2 EB 5840 EN...

Страница 45: ...5 Actuator stem 8 Top diaphragm case 9 Bushing 10 Bushing 20 Vent plug 23 Coupling nut 25 29 Compression spring 37 Threaded bushing 38 Metal plate 39 Diaphragm plate 40 Bottom diaphragm case 42 Top di...

Страница 46: ...13 2 EB 5840 EN 51 54 52 42 53 38 39 48 40 46 23 1 9 55 25 20 59 65 Type 2780 1 Actuator...

Страница 47: ...EB 5840 EN 13 3 51 54 52 45 25 29 53 38 57 58 2 37 23 10 55 5 46 48 45 8 39 59 65 Type 2780 2 Actuator...

Страница 48: ...bsid iaries The addresses of SAMSON AG its subsid iaries representatives and service facilities worldwide can be found on our website www samson de or in all SAMSON prod uct catalogs Required specific...

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Страница 52: ...2019 07 24 English SAMSON AKTIENGESELLSCHAFT Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 5840 EN...

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