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22 | GE Oil & Gas

Body Sub Assembly

41405 TRIM : 2" to 4"

41405 TRIM : 6" to 18"

diffuser option

41405 TRIM: 2” to 4”

41405 TRIM: 6” to 18”

Diffuser Option

Figure 17. Internal parts of pilot plug valve – 41405 type

Figure 18. Internal parts of VRT anticavitation valves – 41375 type

Содержание Masoneilan 41005 Series

Страница 1: ...GE Oil Gas 41005 Series Masoneilan Cage Guided Balanced Globe Valve Instruction Manual GE Data Classification Public ...

Страница 2: ...D THE PARTICULAR REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN CONNECTION WITH INSTALLATION OPERATION OR MAINTENANCE SHOULD FURTHER INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT COVERED SUFFICIENTLY FOR THE CUSTOMER OPER...

Страница 3: ...e Auxiliary Pilot Plug 9 5 Maintenance Repair 10 5 1 Packing Box 10 5 2 Repair of Parts 10 6 Valve Reassembly 12 6 1 Pinning the Valve Plug Stem 12 6 2 Assembly of Ring or Spring Energized Seal Ring 13 6 3 41405 Valve Plug and Cage Assembly 14 6 4 Assembly of the Parts Inside the Valve Body 14 6 5 Assembly of Bonnet 14 6 6 Tightening of Body Stud Nuts 15 6 7 Assembly of Packing Box 16 7 Actuator 1...

Страница 4: ...notice The information contained in this manual in whole or part shall not be transcribed or copied without GE s written permission Please report any errors orquestions about the information in this manual to your local supplier These instructions are written specifically for the 41005 Series control valves and do not apply for other valves outside of this product line Life Period The current esti...

Страница 5: ...es Service GE offers it clientele an After Sales Service comprising highly qualified technicians for the operation maintenance and repair of its equipment To benefit from this service contact our local representative or the After Sales Service of the factory whose address is given at the end of the document 1 4 Spare Parts When carrying out maintenance operations only manufacturer s replacement pa...

Страница 6: ...ndard cage Equal percentage 3 Lo dB anticavitation single stage Linear Equal 4 Lo dB single stage with diffuser Linear Equal 5 Lo dB double stage Linear 6 VRT stack TYPE S Linear 7 VRT stack partial Type S modified percentage 8 VRT cage TYPE C Linear 9 Anticavitation double stage Linear 1 5 A Angle Body EB Extension bonnet C Cryogenic extension bonnet Note This instruction manual describes all the...

Страница 7: ...and a manually operated throttling valve in the by pass line 3 3 Heat Insulation In case of heat insulated installation do not insulate the valve bonnet and take protection measures related to personal safety 3 4 Hydraulic Test and Cleaning of Lines During this operation the control valve must not be used as an isolating valve This means that the valve must always be opened before carrying out pre...

Страница 8: ...ss pressure and isolate the valve if necessary Note The valve must always be reassembled with new packing rings and gaskets before disassembly make sure that the appropriate parts are available A Remove the packing flange nuts 3 then remove the packing flange 4 and the packing follower 23 B Check that the exposed part of the valve plug stem 1 is clean enough for the bonnet 7 to be removed easily C...

Страница 9: ...serted into a plug hole 4 4 Disassembly of the Auxiliary Pilot Plug When the valve is of the 41405 type In the case of 50 80 or 100 mm 2 3 or 4 valves Figure 17 Exert a sufficient force on the auxiliary pilot plug 20 to compress the spring washers 12 The retaining ring 19 can then be removed releasing the auxiliary pilot plug and spring washers In the case of 150 to 400 mm 6 to 16 valves Figure 17...

Страница 10: ...0 to 600 6 to 24 7 2 5 Figure 3 E Put the follower 23 and the packing flange 4 back on F Screw and tighten the packing flange nuts 3 without cramming the packing rings G Put the valve back into service and check for tightness Tighten packing flange nuts 3 as required 5 1 2 Graphite packing ring To carry out this operation the valve plug stem must be removed See chapter on actuator disassembly A Lo...

Страница 11: ...owing must be respected Spread a fine layer of high quality sealing compound on the seating surface Put the seat ring 13 in the body noting the angle In the case of 41305 41505 41605 and 41905 valves put the cage 16 on the seat ring In case of 41375 valves put the stack 48 on the seat ring and the cage 16 on the stack In the case of 41405 valves assemble the valve plug cage and stem 15 16 1 In cas...

Страница 12: ...ly a torque T using a wrench of dimension E see Figure 7 6 1 3 Drilling the pin hole Figures 7 and 8 Note For this operation it is recommended clamping the valve plug stem assembly by the plug shank to avoid damaging the guiding surfaces particular care must be taken so that the pin hole goes through the valve plug axis If the valve plug is new drill a hole of diameter C at a distance D from the e...

Страница 13: ... inner ring has a straight cut while the outer ring has a staggered cut To insert the rings into the cage groove open the rings slightly by hand and slide them one after the other along the plug making sure that the parts are not damage Note The cuts in the outer and inner rings are to be placed at about 180 from each other 6 2 3 41605 valve Figure 19 These valves are equipped with an inner elasto...

Страница 14: ...1305 41605 and 41905 valves The cage plug stem assembly for 41405 valves The STACK assembly making sure that the face with the smallest number of holes is in contact with the seat ring and cage 16 for 41375 valves For the double cage assembly carry out the following operations Put the inner cage 16 upside down Encase the outer cage 75 on the inner cage maintain them together with the two pins 76 I...

Страница 15: ...he torque indicated in table in Figure 10 and the tightening sequence in Figure 11 Double bolting circle Beginning by the internal nuts manually screw all the bolts Screw the internal nuts in order indicated by the Figure 2 and screw them by successive uniform and progressive levels During the tightening make sure that the bonnet face stays parallel at that of the body When the torque values given...

Страница 16: ...015 General Electric Company All rights reserved 6 7 Assembly of Packing Box To assemble the packing box proceed as indicated in the maintenance chapter paragraph 5 1 1 or 5 1 2 Figure 11 Tightening sequence of nuts 8 ...

Страница 17: ...t the same time screw on the yoke nut 33 then the bottom stem connector 2 As soon as it becomes possible insert the valve stem into the actuator stem The stem must be inserted far enough so that when there is air in the actuator the valve plug does not touch the seat C Tighten the yoke nut D Supply air to the actuator at the initial pressure of spring range E Use the pointer 7 to set the travel sc...

Страница 18: ... Unscrew the top stem connector to respect dimension X in Figure 12 F With the plug correctly positioned on the seat unscrew the bottom stem connector assembly to bring it into contact with the top stem connector G Supply air to the actuator until the stem has travelled at least 15 mm H Unscrew the bottom stem connector the number of turns N1 specified in Figure 13 then lock manually with hex nut ...

Страница 19: ...tained for the maximum spring range indicated on the serial plate E Shut off the air pressure Use the pointer 58 to set the travel scale 56 The pointer 58 must indicate open when the air pressure is off 7 6 Coupling of Air to Retract Actuator Type 38 Figure 16 A Connect a temporary air supply line to the actuator Apply sufficient pressure to the diaphragm to retract the actuator stem completely At...

Страница 20: ...9 8 8 8 7 7 7 2 2 2 6 6 Model 87 No 10 16 23 Detail of 87 88 Model No 6 Model 88 No 10 16 23 Parts Reference Ref Designation 1 Hex nut 2 Bottom stem connector 3 Pointer screw H 4 Top stem connector H 5 Cap screw soc head H 6 Connector Insert 7 Pointer 8 Screw Pan head travel scale 9 Travel scale 10 Actuator stem 31 Yoke H 32 Lock nut 33 Drive nut H Not provided for size 6 actuator ...

Страница 21: ...58 56 Plug stem coupling part the size see detail 1 4 NPT 1 4 NPT Parts Reference Ref Designation 1 Valve Plug Stem 26 Actuator stem 27 Stem nut 33 Drive nut 36 Spring adjustor 51 Coupling 52 Coupling screw 53 Coupling nut 55 Frein de tige 56 Travel indicator scale 57 Machine screw 58 Travel indicator 72 Spring barrel cap Type 38 Air to retract actuator Coupling parts No 24 actuator Coupling parts...

Страница 22: ...3 15 12 12 20 20 13 13 16 16 16 15 37 14 31 14 15 14 19 19 41405 TRIM 2 to 4 41405 TRIM 6 to 18 diffuser option 41405 TRIM 2 to 4 41405 TRIM 6 to 18 Diffuser Option Figure 17 Internal parts of pilot plug valve 41405 type Figure 18 Internal parts of VRT anticavitation valves 41375 type ...

Страница 23: ...sket 17 Spring washer 75 Double cage o 11A Graphite seal ring 18 Valve body 76 Pin o 11B Metallic ring 19 Retaining ring H 11C U PTFE seal ring 20 Auxiliary pilot plug On 41405 series valves only Recommended spare part On 41305 series valves only On 6 to 24 valves sizes only 150 to 600 mm o On 41905 series valves only On 41375 high temperature valves only H On 41605 series valves only On 41405 505...

Страница 24: ...22 Fax 81 43 299 1115 KOREA Phone 82 2 2274 0748 Fax 82 2 2274 0794 MALAYSIA Phone 60 3 2161 0322 Fax 60 3 2163 6312 MEXICO Phone 52 55 3640 5060 THE NETHERLANDS Phone 0031 15 3808666 Fax 0031 18 1641438 RUSSIA Veliky Novgorod Phone 7 8162 55 7898 Fax 7 8162 55 7921 Moscow Phone 7 495 585 1276 Fax 7 495 585 1279 SAUDI ARABIA Phone 966 3 341 0278 Fax 966 3 341 7624 SINGAPORE Phone 65 6861 6100 Fax ...

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