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Emerson Daniel 770 User Manual

Differential control valve
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User Manual
P/N 3-9008-608, Rev B
May 2015
™
Daniel
Differential Control Valve
Model 770 - Models 1770 and 2770 Pilots

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  • Page 1 User Manual P/N 3-9008-608, Rev B May 2015 ™ Daniel Differential Control Valve Model 770 - Models 1770 and 2770 Pilots...
  • Page 2 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 returning any equipment for any reason. Download the RMA form from the Support Services web page by selecting the link below.
  • Page 3 Signal words and symbols Pay special attention to the following signal words, safety alert symbols and statements: Safety alert symbol This is a safety alert symbol. It is used to alert you to potential physical injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
  • Page 4 Important safety instructions Daniel Measurement and Control, Inc. (Daniel) designs, manufactures and tests products to function within specific conditions. Because these products are sophisticated technical instruments, it is important that the owner and operation personnel must strictly adhere both to the information printed on the product and to all instructions provided in this manual prior to installation, operation, and maintenance.
  • Page 5 Product operation (Personnel): • To prevent personal injury, personnel must follow all instructions of this manual prior to and during operation of the product. • Follow all warnings, cautions, and notices marked on, and supplied with, this product. • Verify that this is the correct instruction manual for your Daniel product. If this is not the correct documentation, contact Daniel at 1-713-827-6314.
  • Page 6 Notice 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, EXPRESSED OR IMPLIED, REGARDING THE PRODUCTS OR SERVICES DESCRIBED HEREIN OR THEIR USE OR APPLICABILITY. ALL SALES ARE GOVERNED BY DANIEL'S TERMS AND CONDITIONS, WHICH ARE AVAILABLE UPON REQUEST.
  • Page 7 Warranty and Limitations 1. LIMITED WARRANTY: Subject to the limitations contained in Section 2 herein, Daniel Measurement & Control, Inc. (“Daniel”) warrants that the licensed firmware embodied in the Goods will execute the programming instructions provided by Daniel, and that the Goods manufactured by Daniel will be free from defects in materials or workmanship under normal use and care and Services will be performed by trained personnel using proper equipment and instrumentation for the particular Service provided.

  • Page 9: Table Of Contents

    Contents Contents Part I Plan Chapter 1 Introduction ........................3 Purpose of this manual ........................3 Description of the Model 770 control valve ................. 3 1.2.1 Control valve general features ..................3 1.2.2 Control valve applications .................... 3 1.2.3 Operation overview of the control valve ............... 3 1.2.4 Parts lists for the differential control valve pilots ............10 Agency certifications for the Model 770 Control Valves ............
  • Page 10 Contents Chapter 7 Spare parts ........................63 Recommended spare parts ....................... 63 Order spare parts ........................63 Appendices and reference Appendix A Combination needle valve and strainer ................65 Disassembly and assembly ....................... 65 Needle valve and strainer combination ..................66 Order spare parts ........................

  • Page 11: Part I Plan

    Plan Part I Plan Chapters covered in this part: • Introduction • Operating conditions and specifications User Manual...
  • Page 12 Plan Differential Control Valve...

  • Page 13: Chapter 1 Introduction

    Introduction Introduction Topics covered in this chapter: • Purpose of this manual • Description of the Model 770 control valve • Agency certifications for the Model 770 Control Valves Purpose of this manual Daniel Measurement and Control Inc. designed this manual to guide owners and personnel in the installation, operation and maintenance of the Daniel Differential Control Valve 770 and Models 1770 and 2770 Pilots Manual, 3-9008-608.
  • Page 14 Introduction and accessories are made. The normally closed differential pilot, acting as a variable orifice, controls pressure applied to the spring side of the main valve piston. This in turn allows the main valve to regulate differential pressure. Opens on increasing differential pressure The Model 770 valve is normally closed and throttles toward an open position on increasing differential pressure.
  • Page 15 Introduction Open controlled position Figure 1-2 illustrates the valve partially open. Differential pressure (P1 minus P4) has slightly exceeded the pilot spring setting. Z-port (P2) is being opened by the throttling of the pilot, reducing the pressure on the Y-port (P3). The decreasing pressure 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).
  • Page 16 Introduction Figure 1-3: Fully open - no control position Opens on increasing differential pressure Typical for LPG, NH3 or similar products The Model 770 as illustrated is identical to the previously described 770 valve except it is shown as a vapor pressure control valve for products having high flash points such as butane, propane, anhydrous ammonia or other products with similar characteristics.
  • Page 17 Introduction Figure 1-4: Closed position - vapor pressure Open - controlled position Figure 1-5 the pilot is partially open. Differential pressure (P1 minus P4) has slightly exceeded the pilot spring setting. Z-port (P2) is being opened by the throttling of the pilot, reducing the pressure on Y-port (P3).
  • Page 18 Introduction Full open - no control Figure 1-6 the pilot is full open. Differential pressure (P1 minus P4) has exceeded the pilot spring setting. Y-port (P3) is open to Z-port (P2). The valve is floating the stream and is not required to control.
  • Page 19 Introduction the amount of pump discharge pressure either applied to the top of the valve piston 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. Figure 1-7: Maintain minimum pump differential Figure 1-8:...

  • Page 20: Parts Lists For The Differential Control Valve Pilots

    Introduction Figure 1-9: Bypass rate of flow control 1.2.4 Parts lists for the differential control valve pilots This section included the necessary parts required to make up any standard unit covered in this manual. For spring/piston combinations see Section 2.3. Table 1-1: Pilot selection guide 1 1770 Pilot Assembly...
  • Page 21 Introduction Table 1-2: Pilot selection guide 2 (continued) 2770 Pilot Assembly Spring range (Spring) 465500-X5E 900-1500 psi (460024) Table 1-3: Pilot selection guide 3 (for sensing to vapor bomb) 1770 Pilot Assembly Spring range (Spring) 453505-X1E 0-20 psi (460223) 453505-X2E 0-40 psi (460022) 453505-X3E 30-80 psi (460023)
  • Page 22 Introduction Figure 1-10: Part identification for Model 1770 (453500) 0-180 psi range Table 1-4: Part identification for Model 1770 (453500) 0-180 psi range Item number Part number Description Quantity 460206-600 Pilot Valve Cover 460017 Spring Guide Pressure Spring Differential Control Valve...
  • Page 23 Introduction Table 1-4: Part identification for Model 1770 (453500) 0-180 psi range (continued) Item number Part number Description Quantity 460223 Spring, 0-20 lbs. 460022 Spring, 0-40 lbs. 460023 Spring, 30-80 lbs. 460024 Spring, 70-180 lbs. 460516 Piston 460013 Thrust Washer 460021 Damper Spring 460008...
  • Page 24 Introduction Table 1-4: Part identification for Model 1770 (453500) 0-180 psi range (continued) Item number Part number Description Quantity 152090-005 O-ring, EPR 152090-075 O-ring, FFKM 152090-120 O-ring, NBR (low-swell) 152090-116 O-ring, CR 152090-022 O-ring, FKM 152090-027 O-ring, FKM GFLT 152090-029 O-ring, FKM V1289 157010 O-ring, NBR...
  • Page 25 Introduction Table 1-4: Part identification for Model 1770 (453500) 0-180 psi range (continued) Item number Part number Description Quantity 152064-022 O-ring, FKM 152064-027 O-ring, FKM GFLT 152064-029 O-ring, FKM V1289 157011 O-ring, NBR 157011-005 O-ring, EPR 157011-075 O-ring, FFKM 157011-120 O-ring, NBR (low-swell) 157011-116 O-ring, CR...
  • Page 26 Introduction Figure 1-11: Part Identification for Model 1770 (453505) 0-180 psi range Table 1-5: Part Identification for Model 1770 (453505) 0-180 psi range Item Number Part Number Description Quantity 460206-600M Pilot valve cover 460017 Spring guide (stainless steel) Pressure Spring 460223 Spring, 0-20 lbs.
  • Page 27 Introduction Table 1-5: Part Identification for Model 1770 (453505) 0-180 psi range (continued) Item Number Part Number Description Quantity 460023 Spring, 30-80 lbs. 460024 Spring, 70-180 lbs. 460116 Piston 460013 Thrust washer (stainless steel) 460021 Damper spring 460008 Guide bushing 460007 Pilot valve cage 460110-000...
  • Page 28 Introduction Table 1-5: Part Identification for Model 1770 (453505) 0-180 psi range (continued) Item Number Part Number Description Quantity 152090-120 O-ring, NBR (Low-swell) 152090-116 O-ring, CR 152090-022 O-ring, FKM 152090-027 O-ring, FKM GFLT 152090-029 O-ring, FKM V1289 157010 O-ring, NBR 157010-005 O-ring, EPR 157010-075...
  • Page 29 Introduction Table 1-5: Part Identification for Model 1770 (453505) 0-180 psi range (continued) Item Number Part Number Description Quantity 152064-029 O-ring, FKM V1289 157011 O-ring, NBR 157011-005 O-ring, EPR 157011-075 O-ring, FFKM 157011-120 O-ring, NBR (Low-swell) 157011-116 O-ring, CR 157011-022 O-ring, FKM 157011-027 O-ring, FKM GFLT...
  • Page 30 Introduction Figure 1-12: Part Identification for Model 1770 (455500) 150-650 psi range Table 1-6: Part identification for Model 1770 (455500) 150-650 psi range Item number Part number Description Quantity 460206-600M Pilot Valve Cover 460017 Spring Guide Pressure Spring Differential Control Valve...
  • Page 31 Introduction Table 1-6: Part identification for Model 1770 (455500) 150-650 psi range (continued) Item number Part number Description Quantity 460023 Spring, 150-350 lbs. 460024 Spring, 350-650 lbs. 463116 Piston 460013 Thrust Washer 460021 Damper Spring 460008 Guide Bushing 460007 Pilot Valve Cage 460110-000 Poppet Shaft Assy, NBR 460110-007...
  • Page 32 Introduction Table 1-6: Part identification for Model 1770 (455500) 150-650 psi range (continued) Item number Part number Description Quantity 152090-116 O-ring, CR 152090-022 O-ring, FKM 152090-027 O-ring, FKM GFLT 152090-029 O-ring, FKM V1289 157010 O-ring, NBR 157010-005 O-ring, EPR 157010-075 O-ring, FFKM 157010-120 O-ring, NBR (low-swell)
  • Page 33 Introduction Table 1-6: Part identification for Model 1770 (455500) 150-650 psi range (continued) Item number Part number Description Quantity 157011 O-ring, NBR 157011-005 O-ring, EPR 157011-075 O-ring, FFKM 157011-120 O-ring, NBR (low-swell) 157011-116 O-ring, CR 157011-022 O-ring, FKM 157011-027 O-ring, FKM GFLT 157011-029 O-ring, FKM V1289 460108...
  • Page 34 Introduction Figure 1-13: Part identification for Model 2770 (465500) 600-1500 psi range Table 1-7: Part identification for Model 2770 (465500) 600-1500 psi range Item number Part number Description Quantity 466206 Piston Valve Cover 466017 Spring Guide Spring Pressure 466023 Spring, 600-950 lbs. 466024 Spring, 900-1500 lbs.
  • Page 35 Introduction Table 1-7: Part identification for Model 2770 (465500) 600-1500 psi range (continued) Item number Part number Description Quantity 460008 Guide Bushing 466007 Pilot Valve Cage 466111 Poppet Shaft 466004 Bushing 465001 Valve Body 466212 Plunger 466208 Adjustment Screw 466003 466207 Cover Retainer 466002...
  • Page 36 Introduction Table 1-7: Part identification for Model 2770 (465500) 600-1500 psi range (continued) Item number Part number Description Quantity 157010-005 O-ring, EPR 157010-075 O-ring, FFKM 157010-120 O-ring, NBR (low-swell) 157010-116 O-ring, CR 157010-022 O-ring, FKM 157010-027 O-ring, FKM GFLT 157010-029 O-ring, FKM V1289 152066 O-ring, NBR...
  • Page 37 Introduction Table 1-7: Part identification for Model 2770 (465500) 600-1500 psi range (continued) Item number Part number Description Quantity 152086-022 O-ring, FKM 152086-027 O-ring, FKM GFLT 152086-029 O-ring, FKM V1289 152067 O-ring, NBR 152067-005 O-ring, EPR 152067-075 O-ring, FFKM 152067-120 O-ring, NBR (low-swell) 152067-116 O-ring, CR...
  • Page 38 Introduction Figure 1-14: Part identification for Model 2770 (475500) 5-650 psi range Table 1-8: Part identification for Model 2770 (475500) 5-650 psi range Item number Part number Description Quantity 466206 Pilot Valve Cover 466017 Spring Guide Spring Pressure 466223 Spring, 5-100 466022 Spring, 50-250 466023...
  • Page 39 Introduction Table 1-8: Part identification for Model 2770 (475500) 5-650 psi range (continued) Item number Part number Description Quantity 466316 Piston 460013 Thrust Washer 460021 Damper Spring 460008 Guide Bushing 466007 Pilot Valve Cage 466111 Poppet Shaft 466004 Bushing 465001 Valve Body 466212 Plunger...
  • Page 40 Introduction Table 1-8: Part identification for Model 2770 (475500) 5-650 psi range (continued) Item number Part number Description Quantity 152090-120 O-ring, NBR (low-swell) 152090-116 O-ring, CR 152090-022 O-ring, FKM 152090-027 O-ring, FKM GFLT 152090-029 O-ring, FKM V1289 157010 O-ring, NBR 157010-005 O-ring, EPR 157010-075...

  • Page 41: Agency Certifications For The Model 770 Control Valves

    Introduction Table 1-8: Part identification for Model 2770 (475500) 5-650 psi range (continued) Item number Part number Description Quantity 157061-029 O-ring, FKM V1289 152086 O-ring, NBR 152086-005 O-ring, EPR 152086-075 O-ring, FFKM 152086-120 O-ring, NBR (low-swell) 152086-116 O-ring, CR 152086-022 O-ring, FKM 152086-027 O-ring, FKM GFLT...
  • Page 42 Introduction Table 1-9: Agency certifications for control valves Certification type Description Pressure equipment 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) Differential Control Valve...

  • Page 43: Operating Conditions And Specifications

    Operating conditions and specifications Operating conditions and specifications Topics covered in this chapter: • Operating conditions for the Model 770 • Specifications for the control valve • Pilot spring selection Operating conditions for the Model 770 Table 2-1: Operating conditions for the Model 770 control valve Condition type Description Fluid phase...

  • Page 44: Design Considerations

    Operating conditions and specifications Table 2-1: Operating conditions for the Model 770 control valve (continued) Condition type Description Maximum safe working Flange connections/Ratings (DIN) for valve sizes DN50 and DN400: pressure • DIN PN16 MWP at 120 °C: 16 bar •...

  • Page 45: Environmental Conditions

    Operating conditions and specifications • Service testing pressures • Service process temperature and ambient site temperatures • Chemical composition and toxicity of fluid in operating conditions • Traffic, wind and earthquake at loading site • Adverse force or stress caused by inadequate supports, attachments, piping, etc. •...

  • Page 46: Specifications For The Control Valve

    Operating conditions and specifications Table 2-2: Environmental conditions (continued) Parameter type Description Corrosive service Select the material compatible with the specific processes and atmospheric environments. Implement a periodic inspection and maintenance program to ensure that pressure retaining components are free from corrosion and erosion. The valve is not designed with corrosion allowance.

  • Page 47: Requirements And Limitations For Installation

    Operating conditions and specifications Table 2-3: Interface requirements Requirements Description Hydraulic lines External hook up: • ANSI class 150 and 300: NPS 2-6: Carbon steel/Stainless steel 10 mm (0.375") NPS 8-16 Carbon steel/Stainless steel 13 mm (0.5") Can be furnished in metric sizes •...
  • Page 48 Operating conditions and specifications Figure 2-1: Valve orientation 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. Minimum clearances for installation, operation and maintenance For certified prints, consult the factory.
  • Page 49 Operating conditions and specifications Figure 2-2: Flange connection/Ratings (DIN) Table 2-4: Flange connections (DIN) Class 150 Class 300 Class 600 Class 150-300 Class 600 Valve inches inches inches inches inches size 10 1/4 10 1/2 11 1/2 10 7/8 10 7/8 13 1/8 10 7/8 11 1/4...

  • Page 50: Pilot Spring Selection

    Operating conditions and specifications Table 2-5: Approximate shipping weights and cube Approximate shipping weight Approximate shipping cube Valve Model 770 Model 770 size Class 150 Class 300 Class 600 Class 150-300 Class 600 lbs. kilos lbs. kilos lbs. kilos cubic cubic cubic cubic...
  • Page 51 Operating conditions and specifications Figure 2-3: Conversion factors User Manual...
  • Page 52 Operating conditions and specifications Figure 2-4: Pilot spring selections Differential Control Valve...
  • Page 53 Operating conditions and specifications 2.3.2 Table usage Example: A customer has an ANSI 300 lb. Model 770 Differential Control Valve with a 207-552 kPa (30-80 psi) pilot spring set for 483 kPa (70 psi) control. Due to change in the system, he desires to control a 300 psi 2068 kPa (300 psi).
  • Page 54 Operating conditions and specifications Differential Control Valve...

  • Page 55: Part Ii Install

    Install Part II Install User Manual...
  • Page 56 Install Differential Control Valve...

  • Page 57: Chapter 3 Installation Prerequisites

    Installation prerequisites Installation prerequisites Topics covered in this chapter: • Model 770 pre-start checks • Model 770 installation procedure Model 770 pre-start checks CAUTION! EQUIPMENT HAZARD Observe all precautionary signs posted on the equipment. 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.

  • Page 58: Model 770 Installation Procedure

    Installation prerequisites Figure 3-1: Valve orientation Model 770 installation procedure Prerequisites Following 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. Differential Control Valve...
  • Page 59 Installation prerequisites Procedure If possible, install the control valve within 7.6 m (25 feet) of the point at which downstream line pressure is to be controlled. This distance limitation is due to the sense line which must be run to the pilot (unless it is configured for internal sensing). Consult the factory if sense lines of greater length are required.
  • Page 60 Installation prerequisites Figure 3-3: Differential pressure control (LNG, NH3) Figure 3-4: Bypass rate of flow control Differential Control Valve...

  • Page 61: Part Iii Operate

    Operate Part III Operate User Manual...
  • Page 62 Operate Differential Control Valve...

  • Page 63: Operation Start Up

    Operation start up Operation start up Model 770 adjustment and startup Prerequisites The valve is adjusted as outlined below. All isolation valves (A1, A2 and A3) must be closed before adjustment can begin. See Figure 4-1 Procedure The first step in adjusting the valve is to bleed all air from the system. Start the pump (if a static head of 5-10 psi is not present) and open isolation valve A1.
  • Page 64 Operation start up Figure 4-1: Maintain minimum pump differential Differential Control Valve...

  • Page 65: Part Iv Maintain

    Maintain Part IV Maintain Chapters covered in this part: • Planned maintenance • Corrective maintenance • Spare parts User Manual...
  • Page 66 Maintain Differential Control Valve...

  • Page 67: Chapter 5 Planned Maintenance

    Planned maintenance Planned maintenance Topics covered in this chapter: • Maintenance considerations • Pilot disassembly (1770) • Pilot disassembly (2770) • Pilot assembly User Manual...

  • Page 68: Maintenance Considerations

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

  • Page 69: Pilot Disassembly (1770)

    Planned maintenance Pilot disassembly (1770) Remove the 1770 pilot from valve by disconnecting the external tubing. Turn pressure adjustment screw counterclockwise until tension is relieved on the spring. Push in on pilot cover and remove by extracting the retaining ring. Hold the shaft nut and remove the nut and lockwasher by disengaging the poppet shaft assembly from the sensing piston.

  • Page 70: Pilot Assembly

    Planned maintenance Remove the poppet shaft and cage as a unit after removing the retainer ring. Remove the poppet shaft and remove the nut, the lock washer and the retainer sleeve. Remove the guide bushing by removing the retainer ring. Remove and inspect all O-rings.

  • Page 71: Chapter 6 Corrective Maintenance

    Corrective maintenance Corrective maintenance Topics covered in this chapter: • Control valve troubleshooting • Verify the return to operational condition Control valve troubleshooting Use the table below to troubleshoot the control valve. Contact the nearest Daniel Measurement and Control Sales or Service office for repairs. It is important that servicing be performed by trained and qualified service personnel.
  • Page 72 Corrective maintenance Differential Control Valve...

  • Page 73: Chapter 7 Spare Parts

    Spare parts Spare parts Topics covered in this chapter: • Recommended spare parts • Order spare parts Recommended spare parts For spare parts for the 770 control valve, see the Part Lists. Each figure marks its spare parts with an asterisk. Order spare parts Provide the following information when ordering replacement parts: •...
  • Page 74 Spare parts Differential Control Valve...

  • Page 75: Appendix A Combination Needle Valve And Strainer

    Combination needle valve and strainer Appendix A Combination needle valve and strainer Topics covered in this appendix: • Disassembly and assembly • Needle valve and strainer combination • Order spare parts Disassembly and assembly Procedure Isolate and remove all pressure and drain before maintenance. Remove strainer (combination valve and strainer unit) by removing the strainer cap.

  • Page 76: Needle Valve And Strainer Combination

    Combination needle valve and strainer Figure A-1: Combination needle valve and strainer Needle valve and strainer combination • Part number 460710 Differential Control Valve...
  • Page 77 Combination needle valve and strainer Figure A-2: Needle valve and strainer combination Table A-1: Part description for needle valve and strainer combination Item Description Part number Quantity required Strainer assembly 460665 Needle body carbon steel 460688-500M Needle body stainless steel 460688-600M Plug pipe 154772-019M...

  • Page 78: Order Spare Parts

    Combination needle valve and strainer Table A-1: Part description for needle valve and strainer combination (continued) Item Description Part number Quantity required O-ring, Buna-A 152042 O-ring, EPR 152042-005 O-ring, Kalrez 152042-075 O-ring, low-swell Nitrile 152042-120 O-ring, Neoprene 152042-116 O-ring, FKM 152042-022 O-ring, FKM V1289-75 152042-027...
  • Page 79 Combination needle valve and strainer User Manual...
  • Page 80 Europe: Stirling, Scotland, UK 2015 Daniel Measurement and Control, Inc. All rights reserved. T +44-1786-433400 The Emerson logo is a trademark and service mark of Emerson Middle East Africa: Dubai, UAE Electric Co. Daniel Measurement and Control, Inc., and Daniel T +971-4-811-8100 Measurement Services, Inc., (Daniel) are Emerson Process...

This manual is also suitable for:

Daniel 1770Daniel 2770

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