GE Masoneilan 48000 Series Instruction Manual Download Page 11

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Masoneilan 48000 Series Top Guided Globe Valve | 7

Plug

Plug stem

Stem pin

Plug stem

Dia. “A”

Pin hole

Dia. “B”

1/2

12.70

.185

4.70

5/8

15.88

.216

5.50

3/4

19.05

.248

6.30

25.40

.311

7.90

Figure 6 - Plug Stem Pinning

Figure 7 - Packing ring arrangements with optional Lubricator Connection

Plug stem Dia.

Quantity of Packing Ring

Above

Below

Lantern ring

Total

1/2

12.70

5/8

15.88

3/4

19.05

25.40

Soft metal or
plastic vise
jaws

Braided

Back-up Rings

Flexible

Graphite Rings

Lantern Ring

Special staking
tool

Plug

Plug stem

Summary of Contents for Masoneilan 48000 Series

Page 1: ...GE Oil Gas 48000 Series Masoneilan High Temperature High Pressure Globe Cage Valves Instruction Manual GE Data Classification Public ...

Page 2: ...E SITE AND 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 CUST...

Page 3: ...6 Actuator Assembly 3 7 Disassembly 3 7 1 Valve actuation 3 7 2 Disconnect Instrumentation 3 7 3 Air to Retract Actuators 3 7 4 Air to Extend Actuators 3 7 5 Actuator Removal 3 7 6 Valve disassembly 3 8 Maintenance repair 4 8 1 Lapping Seats 4 8 2 Plug Stem Pinning 4 8 3 Packing Box figures 5 and 7 5 9 Valve Body reassembly 6 ...

Page 4: ......

Page 5: ... Please report any errors or questions about the information in this manual to your local supplier These instructions are written specifically for the 48000 Series Control Valves and do not apply for other valves outside of this product line Life Period The current estimated useful life period for the Masoneilan 48000 Series Control Valves is 25 years To maximize the useful life of the product it ...

Page 6: ... sudden changes of temperature Note that the 48000 Series would be well suited for vapors other than steam and gases The basic structure of the 48000 Series is of the hung cage type The cage is hung and the seat ring is directly fixed to the valve body by screwing This allows the cage to be less affected by heat to prevent leak from the seat ring gasket caused by heat cycles in the normal retainer...

Page 7: ...ble the actuator yoke from the valve bonnet and lifting the actuator off the valve to avoid plug to seating surface contact Stem Connector Remove the screws and disassemble the stem connector from the valve and actuator stems 7 4 Air to Extend Actuators For this actuator configuration the valve plug is already in the fully retracted position without any air pressure applied Disconnect the plug ste...

Page 8: ...ompatible with the process should be applied sparingly to the seat ring retainer threads and bottom surface 3 Install seat ring and seat ring retainer and tighten seat ring retainer by hand Do not tighten seat ring retainer to final torque specifications at this time The seat ring and seat ring retainer is removed after lapping seats 4 Insert the cage into the body 5 Apply lapping compound on the ...

Page 9: ...CING PLUG AND STEM C Drilling the new Stem Place the plug on a V block and use a suitable size drill bit to drill the stem use the hole in the plug as a guide D Pinning Note Staking type plug stem pin is standard in the 48000 Series design and it is imperative that a new plug stem pin be inserted into the drilled hole Ensure plug stem alignment following the pinning operation 8 3 Packing Box figur...

Page 10: ...ainer with the slot in the underside of the cage H Install seal rings 10 11 on plug 15 Open lightly the ring with precaution and slide them along the plug up to their seating Their cutting must be diametrically opposed 48200 Unbalance Type valve is not provided with a seal ring I Install plug 15 in the cage J Install another body gasket 9 on the shoulder of the cage K Assemble the bonnet 18 carefu...

Page 11: ...5 88 216 5 50 3 4 19 05 248 6 30 1 25 40 311 7 90 Figure 6 Plug Stem Pinning Figure 7 Packing ring arrangements with optional Lubricator Connection Plug stem Dia Quantity of Packing Ring in mm Above Below Lantern ring Total 1 2 12 70 8 5 8 15 88 9 3 4 19 05 9 1 25 40 9 Soft metal or plastic vise jaws Braided Back up Rings Flexible Graphite Rings Lantern Ring Special staking tool Plug Plug stem ...

Page 12: ...ing Torques Body Body stud Nuts Torque Valve size in Thread size number daN m ft lbs 2 1 5 8 UN 6 212 1560 3 1 625 8 UN 8 261 1920 4 1 875 8 UN 8 372 2740 6 1 75 8 UN 12 315 2320 Notes 1 Do not exceed Maximum Torque values listed 2 Tighten in increments until required torque levels are reached 3 Reject assembly if metal to metal contact is not achieved after reaching Maximum Torque 1 1 8 5 6 3 4 3...

Page 13: ...ame ref Part name l 1 Plug Stem l 9 Body Gasket 17 Body 2 Packing Flange Stud l 10 External Seal Ring 18 Bonnet 3 Packing Flange Stud Nut l 11 Inner Seal Ring 19 Body Stud 4 Packing Flange l 12 Seat Ring 20 Lantern Ring optional 5 Packing Follower 13 Seat Ring retainer l 6 Packing l 14 Seat Ring Gasket 7 Body Stud Nut l 15 Plug 1 8 Plug Stem Pin l 16 Cage 1 Recommended spare parts Only on Balance ...

Page 14: ... 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 65 6861 7172 SOUTH AFRICA Phone 27 11 452 1550 Fax 27 11 452 6542 SOUTH CENTRAL AMERICA AND THE CARIBBEAN Phone 55 12 2134 1201 Fax 55 12 2134 1238 SPAIN Phone 34 93 652 6430 Fax 34 93 652 6444 UNITED ARAB EMIRATES Phone 971 4 8991 ...

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