Needle Valves: Manually Operated - Parker Autoclave Engineers

Needle Valves:Manually OperatedAll 0VM30VRMM60VM60VRMM100VM150VQSSMPI20BNV/20MVNeedle Valves: Manually OperatedOperation and Maintenance ManualCatalog: 02-0024MEMarch 2018

Model #Order #Serial #Mfg. DateDrawing #Table of Contentspage1.0Installation . 22.0Packing Adjustment. 23.0Packing or Stem Replacement. 24.0Seat Replacement . 45.0Service . 56.0Installation Summary Chart . 5Section 1.0InstallationIf a torque wrench is not available, tighten the packing glandapproximately 1/16 turn.5. Pressurize the valve to the maximum operating pressureand check for leaks.No adjustments are necessary prior to installation. Refer toParker Autoclave Engineers’ Valve, Fitting and Tubing Catalog(Installation Section) for proper tubing connection installation.6. If the packing still leaks, relieve all pressure in the valveand repeat steps 4 and 5. If the packing does not seal afterseveral attempts, it needs replaced (refer to Section 3.0).Note: The minimum and maximum temperature limits of theconnection style and materials listed in the Valve, Fitting andTubing Catalog.7. Reinstall the packing gland locking device.Section 2.0Packing AdjustmentSection 3.0Packing or Stem ReplacementIf the valve packing starts to leak, follow the steps listed below toreseal the valve stem.!Note: The minimum and maximum temperature limits of the appropriate packing listed in the Valve, Fitting and Tubing Catalog.CAUTIONIf stem removal is necessary on a MicroMetering (VRMMseries) valve, it must be returned to the factory as preciseadjustments are necessary after assembly to achieve minimum flow capability of the valve.1. Relieve all pressure from the valve and remove it from thesystem.2. Turn valve stem to full open position.1. Relieve all pressure from the valve and remove it from thesystem.3. Loosen the packing gland locking device.2. Turn valve stem to full open position.4. While holding the valve body secure, use a torque wrenchto tighten the packing gland to the value shown on theattached Installation Summary Chart Section 6.3. Remove the packing gland locking device.2Parker Autoclave EngineersInstrumentation Products DivisionErie, PA USAwww.autoclave.com Cat. 02-0024ME

4. While holding the valve body (or housing for HT andLT valves) secure, unthread and remove the packinggland. The packing will stay on stems that have a largerstem tip below the packing (Figure.3).Note: For HT and LT valves, the housing must be removedwhere the stem tip is larger than the body cone ring ID(SW6, SM12 and SM16 valves). Remove the housinglocking device and unscrew the housing from the valvebody.Finger tighten the hex nut, then use a wrench to tightenit approximately 1/8 of a turn. Install the lock nut and finger tighten it in place. While holding the lock nut secure,loosen the hex nut from the top washer and tighten itagainst the lock nut approximately 1/16 of a turn. Replace the handle by lining the hex socket set screw upagainst the flat spot on the stem sleeve and tighteit inplace (DO NOT OVERTIGHTEN). In order to have a nonrotating stem, a slight amount of free play must existbetween the stem sleeve and shaft. The handle shouldhave a 10 degree maximum free play for "backlash". If thefree play is excessive, it will be necessary to remove thehandle and loosen the lock nut and tighten the hex nutfurther against the thrust washer. Tighten the lock nut asindicated above and check for free play. When the desired"backlash" is achieved, replace the handle as describedabove. Re-install the locking device.Two piece pinned non-rotating stems5. Autoclave Engineers manual valves have three differenttype of stems; one piece non-rotating (Figure 2), twopiece pinned non-rotating (Figure 4) and rotating(Figure 5). Follow steps 6-9 for one piece non-rotatingstems, steps 10-11 for two piece pinned non-rotatingstems and step 12 for rotating stems.One piece non-rotating stem6. For stems without a larger stem tip, remove the bottomwasher, packing and packing washer in the body. Placethe bottom washer, packing and packing washer in thebody. If the stem does not require replacement, screwthe packing gland back into the body and tighten thepacking gland to the value in the Installation SummaryChart Section 6.10. For high and low temperature valves that have two piecenon-rotating stems, remove the groove pin holdingthe upper and lower stem together by driving it out with arigid small diameter rod and pulling it out with aLOCK NUT7. Remove the handle by loosening the set screw(s) locatedin the larger hole of the handle (use a 5/32 hex wrenchfor the 3" long handle, a 3/16 hex wrench for the 4" and10-1/4" long handle) and remove it from the stem sleeve.Unscrew the stem from the packing gland. Remove thetwo nuts and thrust washer from the top of the stemassembly. Remove the stem from the stem sleeve.Remove the bottom thrust washer from the stem.For SW8, 15SM9, 8MP7, 9MP7,15QS9, 43SC16, and20SM9 valves, remove the stem collar by unscrewing itclockwise. For stems with a larger stem tip, remove thepacking washer and packing from the stem.HEX NUTSECOND THRUST WASHERSTEM SLEEVEFIRST THRUST WASHER8. Clean thrust washers and all surfaces which mate withthrust washers with a clean cloth. Apply non-hardeninglubricant (Jet-Lube SS-301 or similar) lightly to bothfaces of the thrust washer and the sleevethreads.9.For stems with a larger stem tip, place the bottom washer,packing and packing washer on the stem (remove thebottom washer from from the old stem if the stem isbeing replaced). For SW8, 15SM9, 8MP7, 9MP7,15QS9,43SC16, and 20SM9 valves, place the stem collar on thestem by threading it counter-clockwise. Place first thrustwasher on the stem and slide stem into stem sleeve. Placesecond thrust washer on the stem sleeve. Replace hexnut lightly against the upper thrust washer and thread thestem assembly fully into the packing gland. Screw thepacking gland into the body and tighten to the value in theInstallation Summary Chart Section 6. Open the valvecompletely, then close it one turn to remove the play.STEMFigure 1: Two-Piece Non-rotating Stem Assembly (Exploded)3Parker Autoclave EngineersInstrumentation Products DivisionErie, PA USAwww.autoclave.com Cat. 02-0024ME

pair of pliers. Remove the packing washer and packingfrom the stem. If a new lower stem is required, removethe housing and cone ring from the old stem and placethe cone ring and housing over the new lower stem.Place the bottom washer, packing and packing washer onthe stem. Insert the lower stem into the upper stem sothat the groove pin holes line up. Drive the groove pininto the hole until it is flush with the outside diameter ofthe upper stem.Section 4.0Seat Replacement(see Figure 3)1. Relieve all pressure from the valve and remove it fromthe system. Turn the valve stem to the full open position.2. While holding the body secure, unscrew the seat retainer.11. Lubricate stem sleeve threads with Jet-Lube SS-30 orsimilar lubricant. Thread the stem sleeve all the way intothe packing gland or the insert so that the stem is inthe full open position. While holding the housing in a vice,torque the packing gland to the value in the InstallationSummary Chart and tighten the locknut. Apply siliconegrease or similar lubricant to the sealing surfaces of thecone rings. Apply Jet-Lube SS-301 or similar lubricantto the threads. Screw the housing into the valve body andtorque the housing to the value in the Installation Summary Chart. Replace the housing locking device.13. Remove old seat and replace if necessary.4. Apply silicone grease or similar lubricant to sealingsurfaces of seat. Apply Jet-Lube SS-301 or similarlubricant to the seat retainer threads.5. Replace seat and seat retainer. Make certain that the seatstays flat against the valve body. Tighten seat retainer tothe torque specified in the Installation Summary Chart.Rotating StemHEX SOCKETSET SCREW12. Remove the handle from the stem. Unthread the stemfrom the packing gland. Apply Jet-Lube SS-301 or similarlubricant to the threads of the new stem and thread thenew stem all the way into the packing gland. Line the setscrew on the stem up with the flat spot on the stem andtighten the set screw. With the bottom washer, packingand packing washer installed in the body, screw in thepacking gland and torque it to the value in theInstallation Summary Chart Section 6. Reinstall thepacking gland locking device.HANDLEPACKING GLANDLOCKING DEVICEUPPER PACKINGWASHERPACKINGLOWER PACKINGWASHERSTEMBODYSEATALUMINUM BRONZEPACKING GLANDCOLD WORKEDTYPE 316 SS BODYPOWDER COATEDSTAINLESS STEELHANDLESEAT RETAINERLOCKING DEVICENON-ROTATINGSTEMADJUSTABLE PACKINGBELOW THREADSANTI-EXTRUSIONBACK-UP RINGSFigure 3: Valve with Replacement SeatCHOICE OF VEE ORREGULATING STEM TIPMETAL-TO-METAL SEATINGHIGH PRESSURECONED-AND-THREADEDCONNECTIONSFigure 2: Typical Valve Assembly4Parker Autoclave EngineersInstrumentation Products DivisionErie, PA USAwww.autoclave.com Cat. 02-0024ME

Section 5.0ServicePOWDER COATEDSTAINLESS STEELHANDLEFor service contact the Parker Autoclave Engineers’ Representative in your area or FAX Parker Autoclave Engineers’ SupportServices at 1-814-860-5703.PACKING GLANDUPPER STEMGROOVE PINLOCKING NUTANotes:HT - (high temperature extended stuffing box option).LT - (cryogenic extended stuffing box option).PACKING LOCATED OUTOF TEMPERATUREANTI-EXTRUSIONBACK-UP RINGSEXTENDED HOUSINGSS30 is a registered trademark of Jet-Lube, Inc.1LOWER STEMLOCKING DEVICESection 6.0Installation Summary ChartBODYCONE SEALPlease see Installation Summary Chart on pages 6 & 7.Figure 4: Extended Housing Valve Assembly with Two PiecePinned Non-Rotating StemSee NoteANODIZEDALUMINUM HANDLE316 PACKINGGLANDALUMINUM BRONZEPACKING GLANDLOCKINGDEVICEM3.5 x .7SCREWSTEMLOCKING CLIPNON-ROTATINGSTEMSPACERCOLD WORKEDTYPE 316 SSBODY IN FIVEPATTERNSADJUSTABLE PACKINGBELOW THREADSOUTADJUSTABLE PACKINGBELOW THREADS15-5PH HIGH STRENGTHSTAINLESS STEELSPEEDBITE"W" TUBECONNECTIONVEE STEM TIPMETAL-TO-METALSEATINGSPEEDBITE"W" TUBECONNECTIONIN150V SeriesFigure 5: One Piece Rotating StemTo ensure proper for use Parker Autoclave tubingNot intended to be field repaired. Return to factory for maintenance issues. See Torque Charts on pages 6-7 for packing andoperating torques.5Parker Autoclave EngineersInstrumentation Products DivisionErie, PA USAwww.autoclave.com Cat. 02-0024ME