Emerson Y690VB Instruction Manual
Contents
1. as necessary The frequency of inspection and replacement of parts depends on the severity of service conditions and upon applicable codes and government regulations Y69OVB Series To avoid personal injury property damage or equipment damage caused by sudden release of pressure or explosion of accumulated gas do not attempt any maintenance or disassembly vvithout first isolating the regulator from system pressure and relieving all internal pressure from the equipment Body Area These procedures are for gaining access to the disk assembly orifice and body O ring All pressure must be released from the diaphragm case before the follovving steps can be performed Key numbers are referenced in Figures 3 and 4 1 To inspect and replace the disk assembly key 13 or orifice key 5 remove the cap screws key 2 and separate the diaphragm casing key 4 from the body key 1 2 Remove and inspect the body seal O ring key 11 and the backup ring key 50 3 Inspect and replace the orifice key 5 if necessary Lubricate the threads of the replacement orifice with a good grade of light grease and tighten using 29 to 37 foot pounds 39 to 50 Nem of torque 4 Remove the cotter pin key 15 if it is necessary to replace the disk holder assembly key 13 For a Type Y690VBM also inspect the throat seal O ring key 31 by removing the machine screw key 33 Replace if necessary To install a throat seal place the O ri2. modify or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser Emerson Process Management Regulator Technologies Inc 1999 2009 All Rights Reserved S EMERSON
3. 06 Tel 86 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 For further information visit www fisherregulators com Ku N eg 22 SS ES a A PET Ni 7 p sama XZ E NJ WY N Figure 4 Type Y690VBM Assembly Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Singapore Singapore 128461 Tel 65 6777 8211 Europe Bologna Italy 40013 Tel 39 051 4190611 Gallardon France 28320 Tel 33 0 2 37 33 47 00 SSS mm RY VI 8 TESCOM Emerson Process Management Tescom Corporation USA Headquarters Elk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel t49 0 38823 310 The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls Inc a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to
4. 3 Stainless steel with section to remove the stem seal O ring key 30 it Sate EK PEREA H uorocarbon Figure 4 Follow steps 1 through 7 of Body Area 14 Stem 17B3423X012 Maintenance to remove the throat seal key 31 15 Cotter Pin and machine screw key 33 Stainless steel 1A866537022 16 Lever Assembly Stainless steel 1B5375000B2 7 17 Machine Screw 2 required Parts Ordering Stainless steel 19A7151X022 18 Guide Insert When corresponding with the local Sales Office about t Goes Eu pper Spring Sea this regulator include the type number and all other 20 Adjusting Nut 17B9740X012 pertinent information stamped on the nameplate 21 Hex Nut 14345724122 key 46 Specify the eleven character part number 22 ple T aiea a andar when ordering new parts from the following parts list Steel 4422724092 23 Hex Nut not shown 8 required Ductile iron 14352724122 P r Li Stainless steel 1E9440X0302 a ts st 24 Diaphragm Case Cap Screw 8 required Ductile iron 1352524052 Key Description Part Number Stainless steel 18B3455X012 25 Closing Cap Gasket 1P753306992 Spare Parts Kit Stainless steel Nitrile Construction 26 Vent Assembly Included are keys 10 11 12 13 15 Spring Case Up standard 17A6570X012 25 30 31 33 and 45 RY690AX0012 Spring Case Down 17A6571X012 27 Pipe Plug 1 Body See Table 2 Ductile iron 1A369224492 2 Cap Screw Stainless steel 1A369235072 Ductile iron 1C856228992 30 Stem Seal Type Y690VBM only Stainless steel 18B345
5. 6X012 Nitrile NBR 1H2926G0012 3 Spring Case Assembly Fluorocarbon FKM 1H2926X0022 Ductile iron 17B8946X012 31 Throat Seal Type Y690VBM only Stainless steel 17B8946X022 Nitrile NBR 1D682506992 4 Diaphragm Casing Fluorocarbon FKM 1D6825X0012 Ductile iron 47B3063X012 33 Machine Screw Type Y690VBM only 18A0703X022 Stainless steel 47B3064X012 36 Washer 18B3440X012 5 Orifice 45 Lower Head Gasket 18B3450X012 303 Stainless steel 46 Nameplate Dt 1 4 inch 6 4 mm 1B815135032 AT Drive Screw 2 required 1A368228982 1 2 inch 13 mm 1928835032 50 Backup Ring 18B3446X012 6 Spring See Table 1 Recommended spare part Y69OVB Series 25 18 ACHID 20 22 10 15 13 1 26 6 M Or M 2 A Ke AL E eA N KK Zi 9 DE AZI mi f PREKU U UU FS 4 P 5 j I MC Y M N u TI gh mez S U SANAN LAM T CA tul ZS N PAS LA PM oe OG f S I y Ne r SELA N 8 U J 4 IX N N N E S AN SNOPA Nx I Figure 3 Type Y690VB Assembly Y69OVB Series 26 6 25 18 69 15 3 2948 20 22 10 80 33 13 5 36 45 4 8 18 7 17 14 B2675 Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 2012
6. Form 5465 Instruction Manual Y690VB Series December 2009 Y690VB Series Vacuum Breakers Introduction Scope of the Manual This manual describes and provides instructions and parts lists for Types Y690VB and Y690VBM vacuum breakers Instructions and parts lists for other equipment used with these breakers are found in separate manuals Product Description The Y690VB Series vacuum breakers are used for precise control of small capacity low pressure service applications where an increase in vacuum must be limited These direct operated vacuum breakers come in NPS 3 4 and 1 DN 20 and 25 body sizes and have an 1 4 or 1 2 inch 6 4 or 13 mm orifice The individual products are described as follows vvr292 Figure 1 Type Y690VB Vacuum Breaker Type Y690VB control line installed where service conditions could exceed the limits given in Specifications section or where conditions exceed any Type Y690VBM The Type Y690VBM is a vacuum breaker with a ratings of the adjacent piping or piping control line connection and a throat seal for external connections To avoid such injury or pressure registration damage provide pressure relieving or pressure limiting devices as required Specifications by the appropriate code regulation a I I or standard to prevent service Specifications section gives some general ratings conditions from exceeding those limits and specifications for the Y690VB Series vacuum Additionally ph
7. dy area maintenance procedure steps 5 through 7 7 Y690VB Series Install the lever assembly key 16 into the valve stem key 14 and secure the lever assembly key 16 with the machine screws key 17 Reassemble the diaphragm assembly in the following order Pusher post key 8 Diaphragm head gasket key 45 Diaphragm head key 7 Diaphragm key 10 Diaphragm head key 7 Washer key 36 Diaphragm nut key 38 Secure with 5 to 6 foot pounds 7 to 8 Nem of torque Install the pusher post key 8 plus attached diaphragm parts onto the lever assembly key 16 10 Install the spring case assembly key 3 and control 11 spring key 6 on the diaphragm casing key 4 so that the vent assembly key 26 is correctly oriented and secure them with the spring case cap screws key 24 and hex nuts key 23 not shown to finger tightness only Install the upper spring seat key 19 and adjusting nut key 20 Turn adjusting nut clockwise until there is enough control spring key 6 force to provide proper slack to the diaphragm key 10 and attached parts Using a crisscross pattern finish tightening the spring case cap screws key 24 and hex nuts key 23 not shown to 160 to 190 inch pounds 18 to 21 Nem of torque Then finish turning the adjusting nut to the desired outlet pressure setting 12 Install a replacement closing cap gasket key 25 1 2 3 if necessary and then install the closi
8. hex nuts key 23 to 160 to 190 inch pounds 18 to 21 Nem of torque Then finish turning the adjusting nut to the desired outlet pressure setting 12 Install a replacement closing cap gasket key 25 if necessary and then install the closing cap key 22 Type Y690VBM Key numbers are referenced in Figure 4 1 Remove the closing cap key 22 and turn the adjusting nut key 20 counterclockwise until all compression is removed from the control spring key 6 If the only further maintenance is to change the control spring skip to step 11 Remove the spring case cap screws key 24 and hex nuts key 23 not shown and lift off the spring case assembly key 3 Remove the diaphragm key 10 and attached parts by tilting it so that the pusher post key 8 slips off the lever assembly key 16 To separate the diaphragm key 10 from the attached parts unscrew the diaphragm hex nut key 21 If the only further maintenance is to replace the diaphragm parts skip to step 8 To replace the lever assembly key 16 remove the machine screws key 17 To replace the valve stem key 14 or stem seal O ring key 30 perform body area maintenance procedure steps 1 through 4 and pull the valve stem out of the guide insert key 18 Lightly grease the replacement stem seal O ring key 30 and install on the valve stem key 14 Install the valve stem by pushing it into the guide insert key 18 and perform bo
9. lever assembly key 16 remove the machine screws key 17 5 To replace the valve stem key 14 also perform body area maintenance procedure steps 1 through 4 and pull the valve stem key 14 out of the guide insert key 18 6 Install the valve stem key 14 into the guide insert key 18 and perform body area maintenance procedure steps 5 through 7 7 Install the lever assembly key 16 into the valve stem key 14 and secure the lever assembly key 16 with the machine screws key 17 8 Reassemble the diaphragm assembly in the following order Pusher post key 8 Diaphragm head gasket key 45 Diaphragm head key 7 Diaphragm key 10 Diaphragm head key 7 Washer key 36 Diaphragm nut key 38 Secure with 5 to 6 foot pounds 7 to 8 Nem of torque 9 Install the pusher post key 8 plus attached diaphragm parts onto the lever assembly key 16 10 Install the spring case assembly key 3 and 11 control spring key 6 on the diaphragm casing key 4 so that the vent assembly is correctly oriented and secure them vvith the spring case cap screws key 24 and hex nuts key 23 not shown to finger tightness only Install the upper spring seat key 19 and the adjusting nut key 20 turning clockwise until there is enough control spring key 6 force to provide proper slack to the diaphragm key 10 and attached parts Using a crisscross pattern finish tightening the spring case cap screws key 24 and
10. ng cap key 22 To Convert Constructions Type Y690VB to Type Y690VBM New parts required keys 30 31 and 33 Remove pipe plug key 27 from the diaphragm casing key 4 Refer to steps 1 and 3 in the Body area maintenance section Insert the throat seal O ring key 31 Figure 4 and one machine screw key 33 Y69OVB Series Table 2 Body Materials and Part Numbers Key 1 PART NUMBER BODY MATERIAL END CONNECTION STYLE NPS 314 DN 20 Body NPS 1 DN 25 Body Ductile iron NPT 17B5351X012 17B5351X022 NPT 17B5351X032 17B5351X042 Stainless steel CL150 RF 17B9733X072 17B9733X082 korda shi CL150 RF 17B9733X012 17B9733X022 arbon steel flanges 4 Insert the stem seal O ring key 30 by Key Description Part Number following steps 1 through 7 and 9 through 7 Diaphragm Head 2 required 12 in the Diaphragm and Spring Case Area Stainless steel 17B9723X032 i E 8 Pusher Post Assembly Maintenance section Stainless steel 17B9742X012 t 10 Diaphragm Type Y690VBM to Type Y690VB Nitrile NBR 37B9720X012 U Fluorocarbon FKM 23B0101X052 fi O eal O kin New parts required key 27 11 Body Seal O Ring Nitrile NBR 1H993806992 1 Insert pipe plug key 27 in the diaphragm Fluorocarbon FKM 1H9938X0012 12 Insert Seal casing key 4 Nitrile NBR 1B885506992 Fluorocarbon FKM 1B8855X0012 2 Follow steps 1 through T and 9 through 12 in 13 Disk Assembly the Diaphragm and Spring Case Area Maintenance 30
11. ng on the machine screw and thread into guide insert key 18 to seal Note The disk holder assembly key 13 is comprised of the disk and disk holder 5 Install the disk holder assembly key 13 and secure it to the valve stem key 14 with the cotter pin key 15 6 Install the backup ring key 48 and body seal O ring key 11 into the body key 1 7 Replace the diaphragm casing key 4 on the body key 1 and secure with the cap screws key 2 Diaphragm and Spring Case Area These procedures are for gaining access to the control spring diaphragm assembly valve stem and stem O ring All pressure must be released from the diaphragm case before these steps can be performed Type Y690VB Key numbers are referenced in Figure 3 1 Remove the closing cap key 22 and turn the adjusting nut key 20 counterclockwise until all compression is removed from the control spring key 6 If the only further maintenance is to change the control spring key 6 skip to step 11 2 Remove the spring case cap screws key 24 and hex nuts key 23 not shown and lift off the spring case assembly key 3 3 Remove the diaphragm key 10 and attached parts by tilting it so that the pusher post key 8 slips off the lever assembly key 16 To separate the diaphragm from the attached parts unscrew the diaphragm hex nut key 21 If the only further maintenance is to replace the diaphragm parts skip to step 8 4 To replace the
12. psig value by 2 04 downstream vacuum to enter the system and restore the controlled vacuum to its original pressure setting A Type Y690VB Figure 3 direct operated vacuum breaker is self contained and requires no control line A Type Y690VBM Figure 4 vacuum breaker requires a control line from the 1 2 NPT tapping in the diaphragm case assembly to the point where the vacuum needs to be controlled Startup and Adjustment All Y690VB Series equipment can be placed in operation by slowly introducing inlet vacuum or pressure This equipment takes control when vacuum is established This equipment is suitable for the pressure range stamped on the nameplate key 46 and listed in Table 1 To adjust the pressure setting remove the closing cap key 22 and turn the adjusting nut key 20 clockwise to increase the pressure setting or counterclockwise to decrease the setting Replace the cap after making this adjustment If desired the closing cap may be wired to the hole provided in the spring case key 3 to discourage tampering Shutdown First close the nearest upstream shutoff valve and then close the nearest downstream shutoff valve to vent the equipment properly Next open the vent valve between the equipment and the downstream shutoff valve nearest to it All pressure between these shutoff valves is released through the open vent valve Maintenance Equipment parts are subject to normal wear and must be inspected and replaced
13. rfluoroelastomer FFKM 20 to 300 F 29 to 149 C Approximate Weight 19 pounds 9 kg 1 End connections for other than U S standards can usually be provided consult the local Sales Office 2 The pressure temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded VACUUM PUMP VACUUM BEING LIMITED me INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE B2672 POSITIVE PRESSURE OR ATMOSPHERE ORA LESSER VACUUM THAN THE ONE BEING LIMITED Figure 2 Type Y690VB Operational Schematic Y690VB Series Table 1 Vacuum Pressure Information VACUUM CONTROL PRESSURE RANGE 1 4 inch 6 4 mm Orifice CHANGE IN VACUUM TO WIDE OPEN 1 2 inch 13 mm Orifice SPRING PART NUMBER SPRING WIRE SPRING COLOR DIAMETER 0 to 4 inches w c 0 to 10 mbar 0 6 inches w c 1 5 mbar 1 3 inches w c 3 mbar 0N039427222 Unpainted 0 062 inches 1 6 mm 0 to 1 0 psig 0 to 0 07 bar 10 inches w c 25 mbar 0 7 psig 0 05 bar ONO86127022 Unpainted 0 125 inches 3 2 mm 0 to 2 1 psig 0 to 0 14 bar 1 2 psig 0 08 bar 2 4 psig 0 17 bar 0N004327022 Yellow 0 172 inches 4 4 mm 0 to 5 psig 0 to 0 34 bar 3 2 psig 0 22 bar 6 3 psig 0 43 bar 1D141827012 Dark blue 0 207 inches 5 3 mm 1 Spring ranges based on atmospheric inlet pressure Note If this equipment is shipped mounted on another
14. unit install that unit according to the appropriate instruction manual 1 Only personnel qualified through training and experience should install operate and maintain this equipment For Y690VB Series equipment that is shipped separately make sure that there is no damage to or foreign material in it Also ensure that all tubing and piping have been blown free 2 This equipment may be installed in any position as long as the flow through the body is in the direction indicated by the arrow attached to the body If continuous operation is required during inspection or maintenance install a three way bypass valve around the equipment This equipment may vent some gas to the atmosphere In hazardous or flammable gas service vented gas may accumulate and cause personal injury death or property damage due to fire or explosion Vent equipment in hazardous gas service to a remote safe location away from air intakes or any hazardous area The vent line or stack opening must be protected against condensation or clogging Principle of Operation The Y690VB Series vacuum breakers Figure 2 are used in applications where an increase in vacuum must be limited An increase in vacuum decrease in absolute pressure is transmitted to the lower side of the diaphragm opening the disk assembly This permits positive pressure atmosphere or an upstream vacuum that has higher absolute pressure than the 2 To convert to inches Hg multiply
15. ysical damage to this breakers Individual breakers come from the factory equipment could cause personal injury vvith the specific data stamped on the nameplate or property damage due to escaping gas To avoid such injury or damage Installation install the equipment in a safe and well ventilated location AN VVARNING Equipment operation within ratings does not preclude the possibility of damage from debris in the lines Personal injury property damage or from external sources This equipment should equipment damage or leakage due be inspected for damage periodically and after any to escaping gas or bursting of overpressure condition S TOn Fa D102594X012 Y69OVB Series Specifications Body Sizes NPS 3 4 or 1 DN 20 or 25 End Connection Styles See Table 2 Maximum Allowable Inlet Positive Pressure 150 psig 10 3 bar Vacuum Control Pressure Ranges See Table 1 Maximum Outlet Casing Pressure Full Vacuum Maximum Emergency Outlet Pressure to Avoid Internal Parts Damage 150 psig 10 3 bar Spring Case Connection 1 4 NPT Orifice Size 1 4 or 1 2 inch 6 4 or 13 mm Change in Vacuum Control Pressure to Wide Open See Table 1 Pressure Registration Type Y690VB Internal Type Y690VBM External Temperature Capabilities Nitrile NBR 20 to 180 F 29 to 82 C Fluorocarbon FKM 40 to 300 F 4 to 149 C Ethylenepropylene EPDM 20 to 275 F 29 to 135 C Pe
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