Mounting and Operating Instructions EB 8015 EN
Contents
1. tion The Type 3241 1 and Type 3241 7 Pneu matic Control Valves consist of a Type 3241 single seated Globe Valve and either a Type 3271 or Type 3277 Pneumatic Actua tor Thanks to the modular design the actuators can be exchanged and the standard version of the valve can be supplemented to form a version with extension bonnet or metal bel lows seal In the micro flow valve version a micro trim element is installed in the valve body instead of the usual seat plug assembly The process medium flows through the valve in the direction indicated by the arrow The position of the plug 3 determines the flow through the valve seat 2 The position of the plug 3 is changed by the signal pres sure acting on the diaphragm of the actua tor bench range Plug 3 and actuator stem 8 1 are connected by the stem con nector 7 and sealed by the spring loaded ring packing 4 2 Fail safe position The control valve provides two different fail safe positions depending on the ar rangement of the springs in the actuator Actuator stem extends When the signal pressure is reduced or the power supply or signal fails the springs move the actuator stem downwards and close the valve When the signal pressure increases again the valve opens acting against the force of the springs EBS8015EN Actuator stem retracts When the signal pressure is reduced or the power supply or signal fails the springs move the actuator stem u2. tion 2 1 4 Enter the 1 6 to 2 4 bar bench range valid for the mounted valve on the nameplate of the actuator 8 EB8015 EN Actuator version Actuator stem retracts Note The springs in the actuator version Actuator stem retracts cannot be preloaded If a valve is to be attached to a larger actua tor rated travel of actuator larger than the rated travel of the valve just the first half of the bench range of the actuator can be used Example Valve DN 100 with 30 mm rated travel and 1400 actuator with 60 mm rated travel 0 4 to 1 bar bench range A useable bench range of 0 2 to 0 6 bar is available for the half valve range Caution Actuators which have been preloaded by the manufacturer without an attached valve are marked with a label In addition you will notice three extended bolts on the bottom diaphragm case They enable you to evenly relieve the compressed springs when disassembling the actuator 3 Installation 3 1 Mounting position The valve can be mounted in any desired position However vertical installation with the actuator pointing upwards is preferable for valves in nominal size DN 100 or larger to facilitate maintenance For valves with extension bonnet or metal bellows seal or for actuators weighing more than 50 kg mount a suitable support or sus pension for the actuator Note The valve must be installed with the least amount of vibrations possible and without a
3. 10 to 14 Nominal sizes DN 200 to DN 300 5 Remove the screw 3 4 with its locking device 6 Lift off the ring 3 3 and replace collar or seal 3 1 7 Insert ring 3 3 Thread down screw 3 4 and its locking device 8 Apply lubricant order no 8150 0111 to the packing parts plug stem 6 and contact faces of the collar 3 1 9 Insert the plug stem and plug into the valve bonnet Complete reassembly as described for DN 40 steps 10 to 14 18 8015 EN 6 Material identification The trim material of older valves is indicated by an identification mark on the guide bush ings seat and plug as described below A detailed trim material identification has been introduced using a seat code on the nameplate Refer to section 7 pos 13 6 1 Identification marks Guide bushing groove on plane face No groove 1 4305 Sharp recessed groove 1 4571 Flat recessed groove Hastelloy Seat The material number according to DIN is ei ther stamped or engraved on the seat Stellited seats are marked by a stam ped on st Plug Groove below the plug stem thread No groove 1 4006 Sharp recessed groove 1 4571 Two sharp recessed grooves 1 4301 Flat recessed groove Hastelloy When other materials are used either the material number or its designation is engraved on the plug The Kvs coefficient and characteristic are engraved on the plug Stellited plugs are marked by an engraved
4. 9 Insert the plug stem and plug into the valve bonnet Completion of reassembly 10 Insert new gasket 1 2 into the valve body Carefully place the valve bonnet on the valve body making sure that the large V shaped port of V port plug faces towards the valve outlet Secure with nuts 1 1 Observe the tightening torques specified in EB 029 EN Maintenance Replacing parts 11 Slide the stuffing box parts over the plug stem into the packing chamber Make sure to keep the proper order 12 Screw in the threaded bushing 5 2 and tighten 13 Loosely screw the lock nut 6 2 and stem connector nut 6 1 onto the plug stem BI DI DIS _ 2A LZZ ZZA DN 100 to DN 150 Fig 7 Pressure balanced plug 2 AS X 0G 27 Plug 3 1 Collar seal 3 2 Bushing 3 3 Washer ring 3 4 Screw 6 Plug stem DN 200 to DN 300 8015 17 Material identification 14 Mount the actuator and adjust the upper and lower range values as described in section 2 1 Nominal sizes DN 50 to DN 150 5 Remove screw 3 4 with its locking de vice and washer 3 3 Replace collar 3 1 6 Insert washer 3 3 Thread down the screw 3 4 with its locking device 7 Apply lubricant order no 8150 0111 to the packing parts plug stem 6 and contact faces of the collar 3 1 8 Insert the plug stem and plug into the valve bonnet Complete reassembly as described for DN 40 steps
5. Description 20 Customer inquiries 21 These Mounting and Operating Instructions apply also to Type 3246 Globe Valve Class 150 and 300 in conjunction with Data Sheet T 8046 1 EN Note Non electrical control valves which do not have a valve body lined with an insulating material coating do not have their own potential ignition source according to the risk assess ment in the rare incident of an operating fault corresponding to EN 13463 1 2001 para graph 5 2 and therefore do not fall within the scope of the European Directive 94 9 EC Refer to paragraph 6 3 of EN 60079 14 1977 VDE 0165 Part 1 concerning connection to equipotential bonding system 2 EB8015 EN Safety instructions General safety instructions The control valve may only be mounted started up or serviced by fully trained and qualified personnel observing the accepted industry codes and practices Make sure employees or third persons are not exposed to any danger All safety instructions and warnings in these mounting and operating instructions particularly those concerning assembly start up and maintenance must be observed The control valves fulfill the requirements of the European Pressure Equipment Directive 97 23 EC Valves with a CE marking have a declaration of conformity that includes information about the applied conformity assessment procedure The declaration of conformity is available on
6. RSS eas N III CL LLL U SYI DN 15 to DN 150 forged valve body Fig 6 Versions with metal bellows seal and extension bonnet 14 Eb 8015 EN Check whether the two washers 6 4 are still in the plug stem extension 6 3 Screw the plug stem firmly into the plug stem extension 6 3 tightening torque is 50 Nm for 10 mm and 80 Nm for 16mm To complete assembly refer to section 529 Nominal sizes DN 200 to DN 300 1 Remove the nuts 1 1 2 Remove the intermediate piece 12 to gether with the plug stem and plug from the valve body 3 Remove gasket 1 2 and carefully clean the sealing faces in the valve body and on the intermediate piece 4 Remove the hexagon head screws 3 7 tension ring 3 5 and flange 3 6 5 Unscrew the plug from the plug stem To do so use a suitable tool to hold the plug stem in place so that the metal bel lows which is welded onto the plug stem cannot be twisted 6 Screw a new plug with tension ring and flange to the plug stem To complete assembly refer to section 5 2 5 In the version with extension bonnet there are no parts 3 5 3 6 and 3 7 Plug 3 and plug stem 6 form one piece 5 2 3 Seat Replace the seat 2 as described in section 5 12 Maintenance Replacing parts 5 2 4 Metal bellows Nominal sizes DN 15 to DN 150 1 Unscrew th
7. Fig 8 Valve nameplate left and actuator nameplates right a UNS A Air d alimentation Limit Type designation Modification index Effective diaphragm area Fail safe action FA Actuator stem extends FE Actuator stem retracts Travel Bench range spring range Bench range with preloaded springs Model No Serial No Pneum Stellantrieb Hub Pheum actuator cm Stroke Servo monteur pneum Course Federbereich Spring range Plage des ressorts Stelldruckbereich Signal pressure range bor Plage avec pr contrainte E30 feo 0 Zuluft max 6 bar Begrenzt auf Air supply 90 psi Up to bar Made in France 20 8015 ENEB 8015 EN Customer inquiries 8 Customer inquiries If you encounter any problems please sub mit the following details Order number Type product number nominal size and version of the valve Pressure and temperature of the process medium Flow rate in m h Bench range of the actuator e g 0 2 to 1 bar Has a strainer been installed Installation drawing EB8015EN 21 22 8015 EN 8015 23 SAMSON AG MESS UND REGELTECHNIK Weism llerstraBe 3 60314 Frankfurt am Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 8015 EN S Z 2010 09
8. Pneumatic Control Valves Type 3241 1 and Type 3241 7 Type 3241 1 Type 3241 7 Fig 1 Type 3241 Valve with Type 3271 Actuator and with Type 3277 Actuator Mounting and Operating Instructions EB 8015 EN Edition September 2009 Contents Contents Page Design and principle of operation A Assembling valve and 4 Assembly and A Pretensioning springs in actuator version Actuator stem extends 7 Valve and actuator with different rated 8 Installation 2222 Co oo oo 9 Mounting 9 Signal pressure line 9 Strainer bypass 9 TesheCOnnechon s 7 Operation 2 2 ls 9 Maintenance Replacing parts 10 Standard valve 1 Stuffing 1 Seat and or plug 12 Valve with extension bonnet or metal bellows seal 13 Stuffing box packing 22222 22mm nn 13 PUG aoa oo RA we OS eee 13 so PCR 15 Metal bellows 15 16 Replacing collar or seal 16 Material identification 22 22 oo mon 18 Identification 18 Code u a re a ne a ee en ai 19
9. a contact pressure gauge an outlet into an open ves sel or an inspection window 4 Operation e g reversing the fail safe action of the ac tuator etc For details concerning operation see Mounting and Operating Instructions EB 8310 EN for the Type 3271 Pneumatic Actuator and EB 8311 EN for the Type 3277 Pneumatic Actuator 8015 9 Maintenance Replacing parts 5 Maintenance Replacing parts The control valve is subject to natural wear especially at the seat plug and packing Depending on the application the valve needs to be checked regularly to prevent against possible failures If leakage occurs this could be caused by a damaged packing or a defective metal bel lows If the valve does not seal properly the tight shut off may be impeded by dirt or other im purities caught between the seat and plug or by damaged seating surfaces Remove the parts clean them thoroughly and replace them with new ones if neces sary Note When mounting the bonnet the large V shaped port of the V port plug must face towards the valve outlet Caution Before servicing or disassembling the control valve depressurize the con cerned section of the plant and drain it if necessary depending on the medium used Switch off the signal pressure for the actuator and remove the signal pressure line As valves are not free of cavities there might still be residual medium in the valve This applies i
10. awings Micro trim element 15 16 17 18 19 Plug stem Valve plug Seat body Spring Seat nut 1 Valve body 1 1 Nuts Gasket 2 Seat 3 Plug 4 1 4 2 Packing 5 Valve bonnet 5 2 Threaded bushing Spring 5 3 Travel indicator scale 5 3 6 Plug stem 6 1 Stem connector nut 7 6 2 Lock nut 6 3 Yoke 6 DN 200 to DN 300 7 Stem connector 6 2 Actuator 6 8 1 Actuator stem 8 2 Nut 5 2 4 2 8015 5 Assembling valve and actuator SY AD NNNNNNNN II In S 1 DA Cri a gt 6 4 gy A zz YE 20 SSS 1 Valve body 1 1 Nuts 1 2 Gasket 2 Seat 3 Plug 4 1 Spring 4 2 Packing 5 Valve bonnet 5 2 Threaded bushing 5 3 Travel indicator scale 1e SERVIERT 6 Plug stem a x 6 3 33 6 1 Stem connector nut 6 2 Lock nut 6 3 Yoke DN 200 to DN 300 7 Stem connector 8 Actuator 8 1 Actuator stem 8 2 Nut Fig 3 Sectional drawings of Type 3241 7 and valve body DN 200 to DN 300 6 EBS8015EN 2 Remove the stem connector clamps 7 and the ring nut 8 2 from the actuator 8 Slide the ring nut over the plug stem 3 Place actuator onto the valve bonnet 5 and secure with the ring nut 8 2 4 Read bench range or bench range with pre loaded springs and fail safe action from the actuator s nameplate e g 0 2 to 1 bar and Actuator ste
11. ded it has been remachined properly Make sure the plug is installed in the correct direction Apply lubricant order no 8150 0111 to the plug stem before installation Remaching the plug Slight damage at the facing of the plug can be eliminated by re turning it on a lathe Soft sealing plugs can only be 12 8015 EN remachined until dimension x is reached and if the seat bore exceeds 12 mm For seat bores of 63 mm and larger the en tire sealing ring can be exchanged if necessary the plug parts are screwed to gether Seat Unscrew the seat 2 using the appropri ate seat wrench see EB 029 EN Apply lubricant order no 8150 0119 to the thread and sealing cone of the new seat or possibly the old seat when it has been reworked or thoroughly cleaned and screw it in Micro trim insert In this version the complete micro trim ele ment Fig 2 can be unscrewed from the valve body using a socket wrench width across flats 27 and disassembled for clean ing If individual parts are damaged ex change the entire micro trim element Seat bore x mm 12 0 5 24 48 1 0 6 80 2 0 100 200 2 5 Fig 5 Plug with soft sealing 5 2 Valve with extension bonnet or metal bellows seal 5 2 1 Stuffing box packing 1 Remove the stem connector nut and lock nut 6 1 and 6 2 from the plug stem ex tension 6 3 Unscrew the threaded bushing 5 2 out of the s
12. e plug 3 together with the plug stem 6 from the plug stem exten sion 6 3 as described for replacing the seat in section 5 2 2 Unscrew the nut 6 5 using a SAMSON socket wrench see EB 029 EN Pull the plug stem extension with the welded on metal bellows 6 6 out of the intermediate section 12 Clean the sealing faces on the intermedi ate piece Insert a new plug into the intermediate piece and screw down the nut 6 5 Caution Do not twist the metal bellows 6 Check whether both washers 6 4 are still in the plug stem extension 6 3 Apply lubricant order no 8150 0111 to the thread of the plug stem and firmly screw the plug stem into the plug stem extension 6 3 with a tightening torque of 50 Nm for a plug stem diameter of 10 mm and 80 Nm for a diameter of 16 mm 8015 15 Maintenance Replacing parts Nominal sizes DN 200 to DN 300 1 Unscrew the plug 3 from the plug stem as described in section 5 2 2 Pull the plug stem 6 together with the metal bellows 6 6 upwards out of the intermediate piece 12 Replace the seal 6 7 and insert a new plug stem with metal bellows 6 6 Screw on the plug and secure with the tension ring 3 5 flange 3 6 and screws 3 7 5 2 5 Reassembly 1 Insert new gasket 1 2 into the valve body Place the intermediate piece 12 onto the valve body 1 making sure that the large V shaped port of V port pl
13. m extends The lower value of the bench range 0 2 bar corresponds to the lower bench range value to be adjusted the upper bench range value 1 bar corresponds to the upper bench range value The fail safe ac tion Actuator stem extends FA or Actua tor stem retracts FE is indicated on the Type 3271 Actuator The Type 3277 Actua tor bears the corresponding symbol 5 For actuators with Actuator stem ex tends apply a signal pressure to the lower diaphragm chamber which corre sponds to the lower bench range value e g 0 2 bar For actuators with Actuator stem re tracts apply a signal pressure to the upper diaphragm chamber which corre sponds to the upper bench range value e g 1 bar 6 Thread down the stem connector nut 6 1 by hand until it makes contact with the actuator stem 8 1 Then turn it an other 1 4 turn and secure this position with the lock nut 6 2 7 Position the stem connector clamps 7 and screw tight Align the travel indica tor scale 5 3 with the tip of the stem connector Assembling valve and actuator Note on disassembling an actuator Before disassembling an actuator with fail safe action Actuator stem extends and particularly an actuator with preloaded springs apply a pressure to the lower signal pressure connection that slightly exceeds the lower bench range value see nameplate of the actuator so that you can loosen the ring nut 8 2 2 2 Pretensioni
14. n particular for valve versions with extension bonnet and metal bellows seal 10 EB 8015 EN Caution On performing any work on the valve first shut off the signal pressure disconnect the signal pressure line and remove the actua tor Note Suitable seat and special tools as well as the appropriate tightening torques required for installation are listed in EB 029 EN formerly WA 029 EN The instructions can be viewed on the Internet at www samson de pdf_en e00290en pdf Removing the actuator 1 Before disassembling an actuator with fail safe action Actuator stem extends and particularly an actuator with preloaded springs apply a pressure to the lower signal pressure connection that slightly exceeds the lower bench range value see nameplate so that you can remove the ring nut 8 2 Remove the stem connector clamps 7 and the ring nut 8 2 2 Remove the actuator from the valve bon net 5 1 Standard valve version 5 1 1 Stuffing box packing 1 Remove the body nuts 1 1 as well as the valve bonnet 5 together with the plug stem and plug from the body Unscrew the stem connector nut and lock nut 6 1 and 6 2 from the plug stem Screw the threaded bushing 5 2 out of the stuffing box Pull the plug stem to gether with the plug out of the valve bonnet Maintenance Replacing parts Pull all packing parts out of the packing chamber using a suitable tool Replace damaged pa
15. ng springs in actuator version Actuator stem extends To achieve a greater positioning force the springs in actuators with Actuator stem ex tends can be preloaded with up to 12 5 actuator sizes 120 and 240 cm or up to 25 350 cm and higher of their travel or bench range Example If the springs are preloaded with for exam ple 0 1 bar for a bench range of 0 2 to 1 bar the bench range is shifted by 0 1 bar to result in a bench range of 0 3 to 1 1 bar 0 1 bar corresponds to a preload of 12 5 When adjusting the valve the lower bench range is to be set to 0 3 bar Make sure the new bench range of 0 3 to 1 1 bar is indi cated on the nameplate as the bench range with preloaded springs 8015 7 Assembling valve and actuator 2 3 Valve and actuator with different rated travels Actuator version Actuator stem extends Note Valves that have a travel smaller than the rated travel of the actuator always need to use preloaded springs Example Valve DN 100 with 30 mm rated travel and 1400 actuator with 60 mm rated travel 0 4 to 2 bar bench range 1 Set the signal pressure required for tensioning the springs above the signal pressure of 1 2 bar 1 2 to 2 bar range which corresponds to the mid actuator travel 30 mm to 1 6 bar 2 Thread stem connector nut 6 1 until it touches the actuator stem 3 Secure the position with lock nut and at tach stem connector as described in sec
16. ny stress Piping design To allow the control valve to work properly the pipeline upstream and downstream of the valve should be straight and free of ob structions for a length of at least 6 times the pipe diameter DN Contact SAMSON if this length cannot be met during installation Clean out the pipeline thoroughly prior to in stalling the valve Note Valves that should meet the requirements of NACE MR 0175 standard should not be in sulated 3 2 Signal pressure line Connect the signal pressure line to the lower diaphragm case for valves with actuator version Actuator stem extends and to the upper diaphragm case for valves with actu Installation ator version Actuator stem retracts The lower signal pressure connection of the Type 3277 Actuator is located at the side of the yoke of the lower diaphragm case 3 3 Strainer bypass We recommend you to install a SAMSON Type 2 Strainer upstream of the valve body We also recommend to install a shut off valve both upstream of the strainer and downstream of the valve as well as a by pass so that you do not need to shut down the plant for maintenance Test connection IF there is a test connection G 1 8 at the upper flange of a valve version with metal bellows seal Fig 6 you can check the tightness of the bellows there Particularly for liquids and vapors we rec ommend you to install a suitable leak indica tor at the test connection such as
17. pwards and open the valve When the signal pressure increases again the valve closes acting against the force of the springs 2 Assembling valve and actuator The basic pneumatic actuator can be re placed by an electric actuator or a pneu matic actuator with additional handwheel A pneumatic actuator with or without handwheel can be exchanged for another pneumatic actuator in a different size If in the valve actuator assembly the travel range of the actuator is larger than the travel range of the control valve the actua tor springs are preloaded by the manufac turer so that the travels match 2 1 Assembly and adjustment If the valve and actuator have not been pre assembled by the manufacturer or if the actuator of a valve is to be replaced by an actuator of another type or another size proceed as described below 1 Unscrew the lock nut 6 2 and stem con nector nut 6 1 Firmly press the plug together with the plug stem into the seat ring Make sure the large V shaped port of the V port plug faces towards the valve outlet Thread the stem connector nut and lock nut downwards Assembling valve and actuator Type 3271 Actuator mm GE N SY lt lt A SS 6 S 1 9 f m H Hom CLO ON ae j ISSS TEN PEATS Soe NH N Sirk N OY ga REP A Z O Type 3241 Valve Fig 2 Sectional dr
18. request For appropriate operation make sure that the control valve is only used in areas where the operating pressure and temperatures do not exceed the operating values which are based on the valve sizing data submitted in the order The manufacturer does not assume any responsibility for damage caused by external forces or any other external influence Any hazards which could be caused in the control valve by the process medium operating pressure signal pressure or by moving parts are to be prevented by means of the appropriate measures Proper shipping and appropriate storage are assumed Caution For installation and maintenance work on the valve make sure the relevant section of the pipeline is depressurized and depending on the process medium drained as well If necessary allow the control valve to cool down or warm up fo reach ambient temperature prior to starting any work on the valve Prior to performing any work on the valve make sure the supply air and control signal are disconnected or blocked to prevent any hazards that could be caused by moving parts Special care is needed when the actuator springs are preloaded These actuators are labeled correspondingly and can also be identified by three long bolts at the bottom of the actuator Prior to starting any work on the valve you must relieve the compression from the preloaded springs EBSOISEN 3 Design and principle of operation 1 Design and principle of opera
19. rts Clean packing chamber thoroughly Remove the gasket 1 2 and carefully clean sealing faces in the valve body and on the bonnet Apply lubricant order no 8150 0111 to all the packing parts and the plug stem 6 Slide the plug stem with plug into the valve bonnet 4 4 1 Spring 4 2 PTFE ring packing or 43 Washer 5 Packing packing rings Bonnet 5 2 Threaded bushing 6 Plug stem 6 3 Yoke Fig 4 Stuffing box packing gt 43 8015 11 Maintenance Replacing parts 8 Insert new flat gasket 1 2 into the body Carefully place the valve bonnet onto the valve body making sure that the large V shaped port of the V port plug faces towards the valve outlet Secure with nuts 1 1 9 Carefully slide the packing parts over the plug stem into the packing chamber Keep the proper order Screw in the threaded bushing 5 2 and tighten 10 Loosely screw the lock nut 6 2 and stem connector nut 6 1 onto the plug stem 11 Mount the actuator and adjust the upper and lower bench range values as de scribed in section 2 1 5 1 2 Seat and or plug We recommend you to also replace the packing 4 2 when exchanging the seat and plug To exchange the packing proceed as de scribed in section 5 1 1 Plug Remove the old plug and replace it with a new plug with plug stem It may be possible to use the old plug again pro vi
20. st 6 2 Seat code Trim material identification on the name plate pos 13 MExx xx seat code Seat code Trim material 1 4006 CrNiMo steel 1 4301 Stellite 6B CrNiMo steel entire seat bore stellited Stellite 6B seat of solid Stellite 1 4112 1 4306 1 4462 1 4539 1 7362 V Material identification Dimensions and weights Refer to the associated Data Sheet for di mensions and weights of the valve versions Type 324 DIN version T 8015 EN Type 324 ANSI version T 8012 EN Type 3246 Class 150 300 T 8046 1 EN 8015 19 Description of nameplates 7 Description of nameplates SAMSON 1 CE marking or Art 3 Abs 3 see article 3 3 of PED where applicable N Identification no of notified body fluid group and category where applicable Type designation Modification index of valve Material Year of manufacture Nominal size DIN DN ANSI NPS Permissible excess pressure at room temperature DIN PN ANSI CL 9 Order number with modification index CON C 10 Position of item in order 11 Flow coefficient DIN K ANSI C 12 Characteristic equal percentage Lin linear DIN A Z quick opening ANSI O C 13 Sealing MExx metal see section 6 2 ST stellited Ni nickel plated PT soft sealing with PTFE PK soft sealing with PEEK 14 Pressure balanced DIN D ANSI 15 Lor Ill flow divider
21. to the bellows which is con nected to the intermediate piece We recom mend you to use a clamping tool see EB 029 EN 1 Remove the nuts 1 1 2 Remove the intermediate piece 12 to gether with the plug stem extension plug stem and plug from the valve body 3 Remove gasket 1 2 and carefully clean the sealing faces in the valve body and on the intermediate piece Use an appropriate wrench to hold the nuts stationary which are screwed onto the plug stem extension Clamp the plug stem using a suitable tool and screw it out of the plug stem extension Caution Do not twist the plug stem ex tension with the welded on bellows 5 Apply lubricant order no 8150 0111 to the end of the plug stem 6 of the new or old reworked plug 3 P 8015 13 Maintenance Replacing parts Plug stem 6 1 1 Nuts 6 1 Stem connector nut 6 2 Lock nut 1 2 Gasket 3 Plug 9 vo g x E v 9 o V o 2 929 az e oO O Oo c 9 g o 9 1 cO 6 5 Nut DN 15 to DN 150 6 6 Metal bellows 6 7 Seal 0 2 5 2 Threaded bushing 6 8 Seal DN 200 to DN 300 3 7 Screws 6 1 4 2 Packing 5 Bonnet D o o 2 o D O E D o E lt N 5 4 Bolts 5 5 Gasket i SSS 2 2 y DN 200 to DN 300 with flow divider drain wx LO WwW OTA NH 7
22. tuffing box Remove nuts 5 4 and carefully lift the bonnet 5 over the plug stem extension Pull all stuffing box parts out of the pack ing chamber using a suitable tool Replace damaged parts Clean packing chamber thoroughly Remove the gasket 5 5 in the interme diate piece 12 and carefully clean the sealing faces Apply lubricant order no 8150 0111 to all the packing parts and the plug stem 6 Insert new gasket 5 5 in the intermedi ate piece Carefully place the bonnet over the plug stem extension onto the bonnet and secure with nuts 5 4 Carefully slide the stuffing box parts over the plug stem extension into the packing chamber Make sure to keep the proper order Screw in the threaded bushing 5 2 and tighten Loosely screw the lock nut 6 2 and stem connector nut 6 1 onto the plug stem Mount the actuator and adjust the upper and lower bench range values as de scribed in section 2 1 Maintenance Replacing parts 5 2 2 Plug When exchanging the plug check the pack ing 4 2 or preferably replace it as de scribed in section 5 2 1 Nominal sizes DN 15 to DN 150 To un screw the plug 6 from the plug stem exten sion 6 3 screw two nuts onto the protrud ing thread of the extension to hold the plug stem extension in place Caution To prevent damage to the version with the bellows seal no bellows in the version with extension bonnet make sure no torque is transmitted
23. ug faces towards the valve outlet Secure with nuts 1 1 Insert new gasket 5 5 into the interme diate piece Place the valve bonnet 5 onto the intermediate piece and secure with bolts 5 4 and nuts Observe the tightening torques specified in EB 029 EN Tighten the threaded bushing 5 2 Loosely screw the lock nut 6 2 and stem connector nut 6 1 onto the plug stem extension 6 3 or plug stem Mount the actuator and adjust the upper and lower bench range values as de scribed in section 2 1 16 Eb 8015 EN 5 3 Replacing the collar or seal For version with pressure balanced plug 1 Unscrew the stem connector nut and lock nut 6 1 and 6 2 from the plug stem 2 Remove the body nuts 1 1 and care fully lift off the valve bonnet 5 with plug stem 6 3 Screw the threaded bushing 5 2 out of the stuffing box Pull plug stem and plug 3 out of the bonnet 4 Remove gasket 1 2 and carefully clean the sealing faces in the valve body and on the bonnet Nominal size DN 40 5 Pull the packing 4 2 washer 4 3 and spring 4 1 out of the packing chamber using an appropriate tool Replace dam aged parts 6 Push out the bushing 3 2 and replace the collar 3 1 Clean the packing chamber thoroughly 7 Apply lubricant order no 8150 0111 to the bushing 3 2 and push it in again 8 Also apply lubricant to the packing parts plug stem 6 and the contact faces of the collar 3 1
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