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KTM

VIRGO SERIES N TRUNNION MOUNTED BALL VALVES

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

11.7.3 Exploded view

Series N trunnion mounted ball valve without gland

Construction: Three-piece
Type: Support plate

Item No. Part name

PARTLIST

Item No. Part name

Body

Adapter

Ball

Stem

Seat

Housing

ISO pad

Fastener (ISO pad-housing)

Fastener (housing-body)

O-ring (body seal)

Gasket (body seal)

O-ring (stem seal)

Gasket (stem seal)

O-ring (housing seal)

Gasket (housing seal)

O-ring (seat seal)

Stud (body-adapter)

Nut (body-adapter)

Key

Cap screw (key-stem)

Drain plug / vent plug

Bearing (stem)

Thrust washer (stem)

Seat spring

Sealant fitting for DN 100 (NPS 4)
Class 600 and above

Lifting hook for DN 80 (NPS 3) Class 1500
and above

Support plate

Bearing (support plate)

Thrust washer (support plate)

Dowels (body-housing)

Dowels (support plate-body/adapter)

Dowels (ISO pad-housing)

Dowels (body-adapter)

Lock washer with screw

Содержание KTM VIRGO N Series

Страница 1: ...Seated Trunnion Mounted Side Entry Ball Valves manufactured and supplied by Emerson WARNING Always use Personal Protective Equipment PPE when carrying out above activities 2 RECEIPT HANDLING AND STORAGE Identify the valve contained in the box using the packing list fixed on the box While loading and unloading the box check for handling instructions symbols marked on the box and handle the box acco...

Страница 2: ...g tag number stamped on the name plate or tag plate affixed to the valve Lifting straps 2 piece ball valve Body marking Body marking Name plate Size matl heat no Size matl heat no Name plate 3 piece ball valve WARNING Do not lift from the top flange of stem extension Always use lifting hooks for lifting of stem extension Provide proper support from here to prevent toppling Lifting straps FIGURE 3 ...

Страница 3: ...ing recommendations For sizes up to DN 100 NPS 4 support to be provided at a distance of 2D to 3D from both valve ends For sizes DN 150 NPS 6 and higher support to be provided at distance D from both valve ends where D is the nominal diameter of pipeline For removing mounting support stand from valve assembly lift the valve above ground level by using appropriate material handling lifting equipmen...

Страница 4: ...URE 11 4 OPERATION For lever operated valve the lever is either shipped loose or assembled with valve depending upon the size of the valve lever Rotation of lever in the clockwise direction closes the valve and counter clockwise rotation opens the valve For gear operated valve the gear operator open close adjustment has been done prior to shipment and must not be changed Rotation of hand wheel in ...

Страница 5: ...ng torques Gear operator setting to be done as given in Section 5 3 5 3 Procedure for gear operator setting CAUTION If the valve has been supplied by Emerson with the gear operator assembled on the valve open close adjustment has been done prior to shipment and must not be changed In case of gear operator replacement or mounting of new gear operator on bare shaft valve the steps below shall be fol...

Страница 6: ...cturers like Climax Lubricants and Equipment Co Sealweld etc Sealant injection fitting Type A standard supply See Figure 16 Seat sealant injection Fully close the valve Remove the fitting end cap and slide giant buttonhead coupler Climax model 1699 1700 on sealant fitting Inject sealant into each of the sealant fitting Injection pressure shall be more than pipeline pressure but shall not exceed 1 ...

Страница 7: ... temperature limits of the valve Do not exceed pressure and or temperature limits mentioned on name plate affixed to the valve 2 Valve material not suitable for service fluid Check Tag number as applicable and ensure correct valve is used as per process diagram Verify valve material mentioned on Name plate is suitable with service fluid 3 Use for control application These ball valves are designed ...

Страница 8: ...ly clean actuator vent Leakage through stem 1 Loose gland fasteners 1 Tighten the fasteners 2 Damaged stem stem sealing surface 2 Refurbish or replace the stem 3 Damaged stem seal 3 Replace the stem seal 4 Accumulation of dirt debris corrosion between stem and housing 4 Open valve clean and reassemble Leakage through body to adapter joint body to housing joint 1 Damaged seal gasket 1 Replace seal ...

Страница 9: ...hile the valve is still pressurized In case of an actuated valve before removal of actuator disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot accidently open or close the valve In case of spring return actuators ensure that the spring is at its uncompressed position Use bypass valves or completely shut off the proce...

Страница 10: ...remove the operator from valve assembly Valve shall be positioned on clean and flat surface with adapter end flange on top as shown in Figure 17 It is recommended to use original spares Graphite gaskets shall be replaced Elastomer and plastomer seals can be re used however it is recommended to replace them to maximize valve service life Protect every sealing surface from nicks dents and damages Lu...

Страница 11: ...dapter Remove O ring 15 from seat Remove seat springs 25 from adapter or seat 8 Remove ball 03 and seat 05 from body Remove O ring 15 from seat Remove seat springs 25 from body or seat Remove bearing 29 from ball if it requires replacement due to wear tear damage Remove Thrust washer 30 from ball 9 Where applicable the sealant injection fittings 26 may be removed for cleaning 11 3 2 Re assembly pr...

Страница 12: ...al 11 O ring stem seal 12 Packing stem seal 13 O ring housing seal 14 Gasket housing seal 15 O ring seat seal 16 Stud body adapter 17 Nut body adapter 18 Key 19 Cap screw key stem 20 Drain plug 21 Stud body housing 22 Nut body housing 23 Bearing stem 24 Thrust washer stem 25 Seat spring 26 Sealant fitting for DN 150 NPS 6 for seat thru body cavity 27 Lifting hook for DN 150 NPS 6 28 Trunnion 29 Be...

Страница 13: ...ove support plate from ball Remove bearings 30 from support plates if it requires replacement due to wear tear damage Remove thrust washer 31 from ball 8 Remove seat 05 from body Remove O ring 15 from seat Remove seat springs 26 from body or seat 9 Where applicable the sealant injection fittings 27 may be removed for cleaning 11 4 2 Re assembly procedure 1 Ensure all parts are clean prior to assem...

Страница 14: ... 13 O ring housing seal 14 Gasket housing seal 15 O ring seat seal 17 Stud body adapter 18 Nut body adapter 19 Key 20 Cap screw key stem 21 Drain plug for all sizes Vent plug for DN 100 NPS 4 Class 600 and above 22 Stud body housing 23 Nut body housing 24 Bearing stem 25 Thrust washer stem 26 Seat spring 27 Sealant fitting for DN 100 NPS 4 Class 600 and above 28 Lifting hook for DN 80 NPS 3 Class ...

Страница 15: ...from adapter Remove O ring 16 from seat Remove seat springs 24 from adapter or seat 8 Remove ball 03 and seat 05 from body Remove O ring 16 from seat Remove seat springs 24 from body or seat Remove thrust washer 29 from ball Remove bearing 28 from ball if it requires replacement due to wear tear damage 9 Where applicable the sealant injection fittings 25 may be removed for cleaning 11 5 2 Re assem...

Страница 16: ...ng body seal 11 Gasket body seal 12 O ring stem seal 13 Gasket stem seal 14 O ring housing seal 15 Gasket housing seal 16 O ring seat seal 17 Stud body adapter 18 Nut body adapter 19 Key 20 Cap screw key stem 21 Drain plug 22 Bearing stem 23 Thrust washer stem 24 Seat spring 25 Sealant fitting for DN 150 NPS 6 for seat thru body cavity 26 Lifting hook for DN 150 NPS 6 27 Trunnion 28 Bearing trunni...

Страница 17: ...om ball Remove bearings 29 from support plates if it requires replacement due to wear tear damage Remove thrust washer from ball 8 Remove seat 05 from body Remove O ring 13 from seat Remove seat springs 25 from body or seat 9 Where applicable the sealant injection fittings 26 may be removed for cleaning 11 6 2 Re assembly procedure 1 Ensure all parts are clean prior to assembly of the valve 2 Pay ...

Страница 18: ...dy seal 12 O ring stem seal 13 Gasket stem seal 14 O ring housing seal 15 Gasket housing seal 16 O ring seat seal 18 Stud body adapter 19 Nut body adapter 20 Key 21 Cap screw key stem 22 Drain plug for all sizes Vent plug for DN 100 NPS 4 Class 600 and above 23 Bearing stem 24 Thrust washer stem 25 Seat spring 26 Sealant fitting for DN 100 NPS 4 Class 600 and above 27 Lifting hook for DN 80 NPS 3 ...

Страница 19: ...26 may be removed for cleaning 11 7 2 Re assembly procedure 1 Ensure all parts are clean prior to assembly of the valve 2 Pay attention to references marked during disassembly 3 Position the 1st or bottom adapter 02 vertically by resting on end flange Insert springs 25 in 1st or bottom adapter or seat 05 Mount O rings lip seals 16 as applicable on seat and insert seat in 1st or bottom adapter Asse...

Страница 20: ...al 11 Gasket body seal 12 O ring stem seal 13 Gasket stem seal 14 O ring housing seal 15 Gasket housing seal 16 O ring seat seal 18 Stud body adapter 19 Nut body adapter 20 Key 21 Cap screw key stem 22 Drain plug vent plug 23 Bearing stem 24 Thrust washer stem 25 Seat spring 26 Sealant fitting for DN 100 NPS 4 Class 600 and above 27 Lifting hook for DN 80 NPS 3 Class 1500 and above 28 Support plat...

Страница 21: ... PR valve is mandatory with pre setting to avoid over pressure building in the cavity 13 GLAND PACKING ASSEMBLY PROCEDURE 1 In case of packing contain braided graphite it shall be placed at bottom and top Position of packing arrangement such that the oblique cut of these braided graphite is 180 apart Refer Figure below for appropriate arrangement for die molded Figure 19 and for VEE type packing F...

Страница 22: ...5 00 4298 1602 2696 5626 4572 2488 927 1561 3257 2646 M56 5 50 5343 1991 3352 6995 5683 3098 1155 1943 4056 3295 M60 5 50 6624 2469 4155 8671 7046 3824 1425 2399 5006 4067 KTM VIRGO SERIES N TRUNNION MOUNTED BALL VALVES INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS 14 RECOMMENDED TIGHTENING TORQUES FOR FASTENERS AND PLUGS NOTES 1 Ensure that all the nuts bolts are tightened to the torque val...

Страница 23: ...NION MOUNTED BALL VALVES INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS FOR IMPERIAL SERIES Nm Thread size Inch TPI Non coated bolts nuts Coated bolts nuts Low resistance bolt stud material High resistance bolt stud material Low resistance bolt stud material grade High resistance bolt stud material L7M B7M B8M Class 1 B8M Class 2 L7 B7 Gr 660 L7M B7M B8M Class 1 B8M Class 2 L7 B7 Gr 660 FOR N...

Страница 24: ...ment or repair defects which under proper use appear therein and arise solely from faulty materials and workmanship within a period of 18 calendar months after the original goods shall have been first dispatched or 12 calendar months from the date of commissioning whichever is earlier provided that such defective parts are returned free to our works for examination The undertaking shall exclude an...

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