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P/N 3-9008-608

Rev B

2015

Daniel Measurement and Control, Inc.

11100 Brittmoore Park Drive
Houston, TX 77041 USA
T +1 713-467-6000
F +1 713-827-4805
USA Toll Free 1 888-356-9001

Daniel Measurement Services, Inc.

T +1 713-827-6413

www.Daniel.com

Europe: Stirling, Scotland, UK

T +44-1786-433400

Middle East Africa: Dubai, UAE

T +971-4-811-8100

Asia Pacific: Singapore

T +65-677-8211

©

2015 Daniel Measurement and Control, Inc. All rights reserved.

The Emerson logo is a trademark and service mark of Emerson
Electric Co. Daniel Measurement and Control, Inc., and Daniel
Measurement Services, Inc., (Daniel) are Emerson Process
Management business units. The Daniel name and logo are
trademarks of Daniel Industries, Inc. The Senior, Junior, Simplex,
MeterLink, SeniorSonic, JuniorSonic, and DanPac are trademarks of
Daniel Industries, Inc. All other trademarks are property of their
respective owners.

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Содержание Daniel 1770

Страница 1: ...User Manual P N 3 9008 608 Rev B May 2015 Daniel Differential Control Valve Model 770 Models 1770 and 2770 Pilots ...

Страница 2: ...asurement and Control Inc Headquarters 11100 Brittmoore Park Drive Houston TX 77041 USA http www daniel com Email Customer Service tech service emersonprocess com Customer Support daniel cst support emerson com Asia Pacific danielap support emerson com Europe DanielEMA CST EmersonProcess com Return Material Authorization RMA A Return Material Authorization RMA number must be obtained prior to retu...

Страница 3: ...ult in death or serious injury WARNING Warning indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION Caution indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE Notice is used to address safety messages or practices not related to personal injury Important Important is a statement the user needs to know...

Страница 4: ... Use Daniel parts and work procedures specified in this manual Product owners Purchasers Use the correct product for the environment and pressures present See technical data or product specifications for limitations If you are unsure discuss your needs with your Daniel representative Inform and train all personnel in the proper installation operation and maintenance of this product To ensure safe ...

Страница 5: ...instructions contact your Daniel representative for clarification or assistance Install this product as specified in the INSTALLATION section of this manual per applicable local and national codes Follow all instructions during the installation operation and maintenance of this product Connect the product to the appropriate pressure and electrical sources when and where applicable Ensure that all ...

Страница 6: ...IBILITY FOR PROPER SELECTION USE AND MAINTENANCE OF ANY DANIEL PRODUCT REMAINS SOLELY WITH THE PURCHASER AND END USER TO THE BEST OF DANIEL S KNOWLEDGE THE INFORMATION HEREIN IS COMPLETE AND ACCURATE DANIEL MAKES NO WARRANTIES EXPRESSED OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THIS MANUAL AND IN NO EVENT SHALL DANIEL BE LIA...

Страница 7: ...s storage or handling or any other cause not the fault of Daniel are not covered by this limited warranty and shall be at Buyer s expense Daniel shall not be obligated to pay any costs or charges incurred by Buyer or any other party except as may be agreed upon in writing in advance by Daniel All costs of dismantling reinstallation and freight and the time and expenses of Daniel s personnel and re...

Страница 8: ......

Страница 9: ...cifications for the control valve 36 2 2 1 Interface requirements 36 2 2 2 Requirements and limitations for installation 37 2 3 Pilot spring selection 40 2 3 1 Pilot spring selection table 40 2 3 2 Table usage 43 Part II Install Chapter 3 Installation prerequisites 47 3 1 Model 770 pre start checks 47 3 2 Model 770 installation procedure 48 Part III Operate Chapter 4 Operation start up 53 4 1 Mode...

Страница 10: ...arts 63 7 2 Order spare parts 63 Appendices and reference Appendix A Combination needle valve and strainer 65 A 1 Disassembly and assembly 65 A 2 Needle valve and strainer combination 66 A 3 Order spare parts 68 Contents ii Differential Control Valve ...

Страница 11: ...Part I Plan Chapters covered in this part Introduction Operating conditions and specifications Plan User Manual 1 ...

Страница 12: ...Plan 2 Differential Control Valve ...

Страница 13: ...f the pilot set point regardless of variations in upstream or downstream pressure The pilots are balanced single seated with large ports and operate on a differential as low as 5 psi 34 5 kPa 1 2 2 Control valve applications Maintains system pressure at a predetermined level above product pressure Vapor pressure control on LPG NH3 and similar products Pump differential pressure control Provides co...

Страница 14: ...pring biased loaded with differential pressure sensing chambers connected to the high and low pressure sources The Model 770 valve is used for Pump differential pressure control Bypass differential pressure control for pumps strainers filters etc Vapor pressure control on LPG NH3 and similar products Closed position In Figure 1 1 the valve is closed The differential pressure between P1 and P4 is l...

Страница 15: ... at Y port P3 plus the main valve spring force positions the valve piston so that it balances the pump differential pressure P1 minus P4 equal to the pilot setting Plus or minus 2 psid Open controlled position Figure 1 2 Fully open no control In Figure 1 3 the valve is fully open Differential pressure P1 minus P4 has exceeded the pilot spring setting Y port P3 is open to Z port P2 The valve is flo...

Страница 16: ...etween the meter inlet pressure and the vapor pressure P4 is generally 10 to 30 psid to assure that the product is in a liquid state when it passes through the meter Closed position vapor pressure In Figure 1 4 the valve is closed Vapor pressure P4 plus pilot spring setting is greater than the line pressure P1 indicating the pump is not running or sufficient differential pressure P1 minus P4 is no...

Страница 17: ...tting Z port P2 is being opened by the throttling of the pilot reducing the pressure on Y port P3 The decreasing pressure at Y port P3 plus the main valve spring force establishes a position of the valve piston so that it balances inlet pressure P1 equal to the pilot setting plus vapor pressure P4 Plus or minus 2 psid Open controlled position Figure 1 5 Introduction User Manual 7 ...

Страница 18: ...nd pilot are fully closed blocking all flow Since the pilot controls the valve it must sense a differential equal to its setting before it will allow the valve to open Assuming that the valve is being used to control minimum pump differential refer to Figure 1 7 the pilot will therefore apply initial pump discharge pressure to the top of the valve piston keeping it tightly closed As the discharge ...

Страница 19: ...ton or bypassed through the pilot to the downstream side of the valve The valve will throttle closed if pump differential pressure drops below the pilot setting Maintain minimum pump differential Figure 1 7 Differential pressure control LNG NH3 Figure 1 8 Introduction User Manual 9 ...

Страница 20: ... 1 1 1770 Pilot Assembly Spring range Spring 453500 X1E 0 20 psi 460223 453500 X2E 0 40 psi 460022 453500 X3E 30 80 psi 460023 453500 X4E 70 180 psi 460024 456500 X3E 150 350 psi 460023 456500 X4E 350 650 psi 460024 Pilot selection guide 2 Table 1 2 2770 Pilot Assembly Spring range Spring 475500 X1E 5 100 psi 460223 475500 X2E 50 250 psi 460022 475500 X3E 200 400 psi 460023 475500 X4E 350 650 psi ...

Страница 21: ...ng range Spring 453505 X1E 0 20 psi 460223 453505 X2E 0 40 psi 460022 453505 X3E 30 80 psi 460023 453505 X4E 70 180 psi 460024 Pilot body material X 5 Steel X 6 Stainless steel Elastomers E 0 NBR E 7 EPR E 5 FFKM E 4 NBR Low swell E 3 CR E FKM E G FKM GFLT E M FKM V 1289 E 9 FKM for LPG Service Note X and E to be selected depending upon materials and elastomers required Introduction User Manual 11...

Страница 22: ...i range Figure 1 10 Part identification for Model 1770 453500 0 180 psi range Table 1 4 Item number Part number Description Quantity 1 460206 600 Pilot Valve Cover 1 2 460017 Spring Guide 1 3 Pressure Spring 1 Introduction 12 Differential Control Valve ...

Страница 23: ...0 003 Poppet Shaft Assy CR 1 460110 Poppet Shaft Assy FKM 1 460110 00G Poppet Shaft Assy FKM GFLT 1 460110 00M Poppet Shaft Assy FKM V1289 1 10 453301 500M Pilot Body CS 1 453301 600M Pilot Body ST S 1 11 460219 Spring Adj Stem 1 12 150687 124 Screw Set 1 13 151543 019 Nut Hex 1 14 156465 Retaining Ring Internal 1 15 152267 Washer SS Lock 1 16 156466 Retaining Ring Internal 1 17 156467 Retaining R...

Страница 24: ...FKM 1 157010 027 O ring FKM GFLT 1 157010 029 O ring FKM V1289 1 26 152066 O ring NBR 2 152066 005 O ring EPR 2 152066 075 O ring FFKM 2 152066 120 O ring NBR low swell 2 152066 116 O ring CR 2 152066 022 O ring FKM 2 152066 027 O ring FKM GFLT 2 152066 029 O ring FKM V1289 2 27 157029 O ring NBR 1 157029 005 O ring EPR 1 157029 075 O ring FFKM 1 157029 120 O ring NBR low swell 1 157029 116 O ring...

Страница 25: ... ring FKM GFLT 1 152064 029 O ring FKM V1289 1 29 157011 O ring NBR 1 157011 005 O ring EPR 1 157011 075 O ring FFKM 1 157011 120 O ring NBR low swell 1 157011 116 O ring CR 1 157011 022 O ring FKM 1 157011 027 O ring FKM GFLT 1 157011 029 O ring FKM V1289 1 30 460108 Orifice Screw 1 33 151543 019 Nut Hex 1 Recommended spare parts Introduction User Manual 15 ...

Страница 26: ...cation for Model 1770 453505 0 180 psi range Table 1 5 Item Number Part Number Description Quantity 1 460206 600M Pilot valve cover 1 2 460017 Spring guide stainless steel 1 3 Pressure Spring 460223 Spring 0 20 lbs 1 460022 Spring 0 40 lbs 1 Introduction 16 Differential Control Valve ...

Страница 27: ... 460110 Poppet shaft assembly FKM 460110 00G Poppet shaft assembly FKM GFLT 460110 00M Poppet shaft assembly FKM V1289 10 453301 500M Pilot body CS 1 453301 600M Pilot body SS 11 460219 Spring Adjusment Stem 1 12 150687 124 Screw set 1 13 151543 019 Nut Hex 1 14 156465 Retaining ring internal 1 15 152267 Washer SS lock sprin 1 16 156466 Retaining ring internal 1 17 156467 Retaining ring internal 1...

Страница 28: ...g FKM V1289 1 26 152066 O ring NBR 2 152066 005 O ring EPR 2 152066 075 O ring FFKM 2 152066 120 O ring NBR Low swell 2 152066 116 O ring CR 2 152066 022 O ring FKM 2 152066 027 O ring FKM GFLT 2 152066 029 O ring FKM V1289 2 27 152073 O ring NBR 1 152073 005 O ring EPR 1 152073 075 O ring FFKM 1 152073 120 O ring NBR Low swell 1 152073 116 O ring CR 1 152073 022 O ring FKM 1 152073 027 O ring FKM...

Страница 29: ...O ring FKM V1289 1 29 157011 O ring NBR 1 157011 005 O ring EPR 1 157011 075 O ring FFKM 1 157011 120 O ring NBR Low swell 1 157011 116 O ring CR 1 157011 022 O ring FKM 1 157011 027 O ring FKM GFLT 1 157011 029 O ring FKM V1289 1 30 460108 Orifice Screw SS 1 33 151543 019 Nut Hex 1 Recommended spare parts Introduction User Manual 19 ...

Страница 30: ... range Figure 1 12 Part identification for Model 1770 455500 150 650 psi range Table 1 6 Item number Part number Description Quantity 1 460206 600M Pilot Valve Cover 1 2 460017 Spring Guide 1 3 Pressure Spring 1 Introduction 20 Differential Control Valve ...

Страница 31: ...KM 1 460110 00G Poppet Shaft Assy FKM GFLT 1 460110 00M Poppet Shaft Assy FKM V1289 1 10 453301 500M Pilot Body W MTR 1 11 460219 Spring Adj Stem 1 12 150687 124 Screw Set Headless 1 13 151543 019 Nut Hex 2 14 156465 Retaining Ring Internal 1 15 152267 Washer SS Lock 1 16 156466 Retaining Ring Internal 1 17 156467 Retaining Ring Internal 1 22 157163 Glyd Ring Outside 1 23 157009 O ring NBR 1 15700...

Страница 32: ...NBR 2 152066 005 O ring EPR 2 152066 075 O ring FFKM 2 152066 120 O ring NBR low swell 2 152066 116 O ring CR 2 152066 022 O ring FKM 2 152066 027 O ring FKM GFLT 2 157076 029 O ring FKM V1289 2 27 157076 O ring NBR 1 157076 005 O ring EPR 1 157076 075 O ring FFKM 1 157076 120 O ring NBR low swell 1 157076 116 O ring CR 1 157076 022 O ring FKM 1 157076 027 O ring FKM GFLT 1 157076 029 O ring FKM V...

Страница 33: ...scription Quantity 29 157011 O ring NBR 1 157011 005 O ring EPR 1 157011 075 O ring FFKM 1 157011 120 O ring NBR low swell 1 157011 116 O ring CR 1 157011 022 O ring FKM 1 157011 027 O ring FKM GFLT 1 157011 029 O ring FKM V1289 1 30 460108 Orifice Screw 1 Recommended spare parts Introduction User Manual 23 ...

Страница 34: ... 600 1500 psi range Table 1 7 Item number Part number Description Quantity 1 466206 Piston Valve Cover 1 2 466017 Spring Guide 1 3 Spring Pressure 1 466023 Spring 600 950 lbs 1 466024 Spring 900 1500 lbs 1 4 466216 Piston 1 5 460013 Thrust Washer 2 6 460021 Damper Spring 1 Introduction 24 Differential Control Valve ...

Страница 35: ...ernal 1 29 157164 Glyd Ring Outside 1 30 157212 Back Up Ring Teflon 4 31 157207 Back Up Ring Teflon 1 32 151001 019M Screw Set 4 35 151627 Nut Jam 1 36 152267 Washer SS Lock 1 38 157009 O ring NBR 1 157009 005 O ring EPR 1 157009 075 O ring FFKM 1 157009 120 O ring NBR low swell 1 157009 116 O ring CR 1 157009 022 O ring FKM 1 157009 027 O ring FKM GFLT 1 157009 029 O ring FKM V1289 1 39 152090 O ...

Страница 36: ...g FKM 2 152066 027 O ring FKM GFLT 2 152066 029 O ring FKM V1289 2 42 157034 O ring NBR 1 157034 005 O ring EPR 1 157034 075 O ring FFKM 1 157034 120 O ring NBR low swell 1 157034 116 O ring CR 1 157034 022 O ring FKM 1 157034 027 O ring FKM GFLT 1 157034 029 O ring FKM V1289 1 43 157061 O ring NBR 2 157061 005 O ring EPR 2 157061 075 O ring FFKM 2 157061 120 O ring NBR low swell 2 157061 116 O ri...

Страница 37: ... 1 152067 005 O ring EPR 1 152067 075 O ring FFKM 1 152067 120 O ring NBR low swell 1 152067 116 O ring CR 1 152067 022 O ring FKM 1 152067 027 O ring FKM GFLT 1 152067 029 O ring FKM V1289 1 46 157024 O ring NBR 1 157024 005 O ring EPR 1 157024 075 O ring FFKM 1 157024 120 O ring NBR low swell 1 157024 116 O ring CR 1 157024 022 O ring FKM 1 157024 027 O ring FKM GFLT 1 157024 029 O ring FKM V128...

Страница 38: ...odel 2770 475500 5 650 psi range Table 1 8 Item number Part number Description Quantity 1 466206 Pilot Valve Cover 1 2 466017 Spring Guide 1 3 Spring Pressure 1 466223 Spring 5 100 1 466022 Spring 50 250 1 466023 Spring 200 400 1 466024 Spring 350 650 1 Introduction 28 Differential Control Valve ...

Страница 39: ... Balancing Tube 1 23 151543 019 Nut Hex 1 24 156466 Retaining Ring Internal 1 25 156467 Retaining Ring Internal 1 29 157165 Glyd Ring 1 30 157212 Back Up Ring Teflon 4 31 157207 Back Up Ring Teflon 1 32 151001 019M Screw Set 4 33 157144 Elbow 1 34 157143 Connector Straight 1 35 151627 Nut Jam 1 36 152267 Washer SS Lock 1 38 157009 O ring NBR 1 157009 005 O ring EPR 1 157009 075 O ring FFKM 1 15700...

Страница 40: ...g FKM V1289 1 41 152066 O ring NBR 2 152066 005 O ring EPR 2 152066 075 O ring FFKM 2 152066 120 O ring NBR low swell 2 152066 116 O ring CR 2 152066 022 O ring FKM 2 152066 027 O ring FKM GFLT 2 152066 029 O ring FKM V1289 2 42 157091 O ring NBR 1 157091 005 O ring EPR 1 157091 075 O ring FFKM 1 157091 120 O ring NBR low swell 1 157091 116 O ring CR 1 157091 022 O ring FKM 1 157091 027 O ring FKM...

Страница 41: ...1 152067 120 O ring NBR low swell 1 152067 116 O ring CR 1 152067 022 O ring FKM 1 152067 027 O ring FKM GFLT 1 152067 029 O ring FKM V1289 1 46 157024 O ring NBR 1 157024 005 O ring EPR 1 157024 075 O ring FFKM 1 157024 120 O ring NBR low swell 1 157024 116 O ring CR 1 157024 022 O ring FKM 1 157024 027 O ring FKM GFLT 1 157024 029 O ring FKM V1289 1 Important Item numbers reference actual engine...

Страница 42: ...ol valves Table 1 9 Certification type Description Pressure equipment PED Process temperature Standard temperature 29 C to 66 C 20 F to 150 F Optional temperature 46 C to 204 C 50 F to 400 F Introduction 32 Differential Control Valve ...

Страница 43: ...sity crude oils and condensates Refined products and intermediates e g gasoline diesel kero sene light fuel oils jet fuel LPG butanes naphtha alkylate refor mate straight run gasoline cat cracked gasoline Petrochemicals e g benzene toluene xylenes cumene olefins pyrolysis gasoline Natural gas liquids Differential pressure The maximum allowable differential pressure of a control valve is 6894 kPa 1...

Страница 44: ...PR FKM V1289 Nitrile FFKM FKM GLT For other material contact the factory External hook up Class 150 and 300 NPS 2 6 Carbon steel Stainless steel 10 mm 0 372 NPS 8 16 Carbon steel Stainless steel 13 mm 0 5 Class 600 NPS 2 6 Stainless steel 13 mm 0 5 Can be furnished in metric sizes Other internal parts Stainless steel Pilot spring ranges Class 150 300 Class 600 kPa PSI kPa PSI 0 138 0 20 345 690 5 ...

Страница 45: ...er use this equipment for any purpose other than its intended use Failure to comply may result in death serious personal injury and or property damage Environmental conditions Table 2 2 Parameter type Description Severe service conditions Ensure that piping or other attachments connected to the valve are not under stress The design of the control valve has not been assessed for the effects of wind...

Страница 46: ...ngs intended for human occupancy within an area that extends 200 meters 220 yards radially from the control valve Reference Class 1 Location U S DOT CFR Title 49 Part 192 5 Closed poorly ventilated areas Install the control valve in a well ventilated area not less than one meter approximately three feet from source of ignition or source of heat which might damage the unit Elevation No limit Humidi...

Страница 47: ...ch are available per cus tomer request For other ANSI ratings or flanges consult the factory engineers For maximum working pressures at intermediate tempera tures refer to ANSI B16 5 WARNING FLANGE SIZE HAZARD Customers must choose the appropriate size material of the flange for their piping require ments Choosing an incorrect flange may cause a pressure leak resulting in death or serious injury 2...

Страница 48: ...rpose other than its intended use Failure to comply may result in death serious personal injury and or property damage Minimum clearances for installation operation and maintenance For certified prints consult the factory Operating conditions and specifications 38 Differential Control Valve ...

Страница 49: ...27 11 1 2 29 10 7 8 28 10 7 8 28 3 11 28 13 1 8 33 14 36 10 7 8 28 11 1 4 29 4 13 33 14 1 2 37 17 43 10 7 8 28 11 1 2 29 6 17 43 17 7 8 45 22 56 13 5 8 35 13 5 8 35 8 22 1 4 57 23 1 4 59 26 66 17 1 4 44 17 3 4 45 10 26 1 2 67 27 7 8 71 31 79 17 5 8 45 20 5 8 52 12 30 1 2 77 33 5 8 85 36 1 2 93 22 7 8 58 22 7 8 57 16 41 3 8 105 43 1 3 110 46 117 30 76 30 76 Operating conditions and specifications U...

Страница 50: ...pilot valve figure numbers part numbers pilot springs spring part numbers and piston diameters The application of pilot springs is significant and often misunderstood The pressure range of a specific pilot spring relates directly to the area of the pilot piston exposed to fluid sensing FORCE PRESSURE X AREA In other words the control range of a spring will vary with the outside diameter of the pil...

Страница 51: ...Conversion factors Figure 2 3 Operating conditions and specifications User Manual 41 ...

Страница 52: ...Pilot spring selections Figure 2 4 Operating conditions and specifications 42 Differential Control Valve ...

Страница 53: ...clusion Changing the spring will not solve this customer s problem The pilot piston must be changed Proper use of the pilot spring selection table should eliminate any difficulty associated with changing a pilot spring If any two facts are known about a pilot other tabulated data can be determined For example Knowledge of piston diameter and spring color indicates the spring range of the pilot Kno...

Страница 54: ...Operating conditions and specifications 44 Differential Control Valve ...

Страница 55: ...Part II Install Install User Manual 45 ...

Страница 56: ...Install 46 Differential Control Valve ...

Страница 57: ...ipment Failure to do so may result in injury to personnel or cause damage to the equipment Important The Daniel valve may be installed with a flow direction horizontal or vertical up but should never be installed with flow direction vertical down When installed in a horizontal line the valve should be installed so that the cylinder head is at the top of the valve and not the bottom Installation pr...

Страница 58: ...owing the procedure below to install the Model 770 WARNING EQUIPMENT HAZARD Never use this equipment for any purpose other than its intended use Failure to comply may result in death serious personal injury and or property damage Installation prerequisites 48 Differential Control Valve ...

Страница 59: ...ening with a temporary cover b Disconnect or isolate the sense line if it is connected to the pilot This will eliminate the possibility of foreign material flowing into the sensing chamber of the pilot Flushing the line will not be necessary if the product line and liquid are positively known to be clean 3 Two 3 8 sense lines are required between the pilot and the sensing points This size line is ...

Страница 60: ...Differential pressure control LNG NH3 Figure 3 3 Bypass rate of flow control Figure 3 4 Installation prerequisites 50 Differential Control Valve ...

Страница 61: ...Part III Operate Operate User Manual 51 ...

Страница 62: ...Operate 52 Differential Control Valve ...

Страница 63: ... Start the pump and immediately open valve A1 This valve should be opened slowly Observe the pressure gauges at G2 and G3 while opening this valve and note the pressure at which the control valve begins to open If the differential pressure at which the valve opens is higher than the pressure desired turn the pilot adjustment screw counterclockwise stop the pump and the restart it again Repeat this...

Страница 64: ...Maintain minimum pump differential Figure 4 1 Operation start up 54 Differential Control Valve ...

Страница 65: ...Part IV Maintain Chapters covered in this part Planned maintenance Corrective maintenance Spare parts Maintain User Manual 55 ...

Страница 66: ...Maintain 56 Differential Control Valve ...

Страница 67: ...5 Planned maintenance Topics covered in this chapter Maintenance considerations Pilot disassembly 1770 Pilot disassembly 2770 Pilot assembly Planned maintenance User Manual 57 ...

Страница 68: ...5 1 Maintenance considerations Model 1770 Differential Control Pilot and 2770 Differential Control Pilot Figure 5 1 Planned maintenance 58 Differential Control Valve ...

Страница 69: ...jury to personnel or cause damage to the equipment CAUTION EQUIPMENT DAMAGE Read the entire recommended procedure for all installation operations and maintenance procedures before attempting to install or disassemble the valve Disassembly of this cylinder assembly is different from previous Daniel Control Valves and requires strict adherence to the procedures outlined in this manual Failure to rea...

Страница 70: ...ase to all O rings to prevent cutting and to facilitate assembly 2 Reassemble by reversing disassembly order BE CAREFUL not to cut O rings when assembling parts and assemblies Be sure spring under sensing piston is in place Important This pilot was designed without corrosion allowance Periodically inspect the valve s metal parts for corrosion and erosion Inspect the seals and O rings for wear and ...

Страница 71: ...2 Verify the return to operational condition After correcting maintenance issues verify that the control valve is working properly by following the steps below Procedure 1 Inspect all bolts used to secure the control valve in line to ensure that proper mounting procedures have been followed and that flange connections are leak free 2 Evaluate the system setup to ensure that all components are in t...

Страница 72: ...Corrective maintenance 62 Differential Control Valve ...

Страница 73: ...e following information when ordering replacement parts Valve serial number Part number Part description Quantity required Size Product product viscosity product specific gravity Minimum and maximum operating temperatures Minimum and maximum flow rates Minimum normal and maximum operating pressure Control functions to be performed Flange connections O ring material Control pilot materials Tubing m...

Страница 74: ...Spare parts 64 Differential Control Valve ...

Страница 75: ...ap 3 All parts associated with the adjustment stem are removable when the retainer is removed Remove the adjustment stem by turning it counterclockwise 4 For pilots used on crude oil gasoline diesel fuel or other general liquid hydrocarbon service apply a light oil or general purpose grease to all O rings to prevent cutting and to facilitate assembly Use a light oil only for Butane and Propane ser...

Страница 76: ...Combination needle valve and strainer Figure A 1 A 2 Needle valve and strainer combination Part number 460710 Combination needle valve and strainer 66 Differential Control Valve ...

Страница 77: ...valve and strainer combination Table A 1 Item Description Part number Quantity required 1 Strainer assembly 460665 1 3 Needle body carbon steel 460688 500M 1 Needle body stainless steel 460688 600M 1 4 Plug pipe 154772 019M 1 Combination needle valve and strainer User Manual 67 ...

Страница 78: ...ainer cap 460682M 1 7 Plug pipe square hd 154783M 1 8 Retainer cap 460686 1 9 Adjustment stem 460683 001M 1 10 Retainer 460684M 1 11 O ring Buna A O ring EPR O ring Kalrez O ring low swell Nitrile O ring Neoprene O ring FKM O ring FKM V1289 75 152067 152067 005 152067 075 152067 120 152067 116 152067 022 152067 027 1 1 1 1 1 1 1 A 3 Order spare parts Provide the following information when ordering...

Страница 79: ...Combination needle valve and strainer User Manual 69 ...

Страница 80: ...Asia Pacific Singapore T 65 677 8211 2015 Daniel Measurement and Control Inc All rights reserved The Emerson logo is a trademark and service mark of Emerson Electric Co Daniel Measurement and Control Inc and Daniel Measurement Services Inc Daniel are Emerson Process Management business units The Daniel name and logo are trademarks of Daniel Industries Inc The Senior Junior Simplex MeterLink Senior...

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