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DANIEL 762 User Manual

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DANIEL
®
CONTROL VALVES
USER MANUAL
MODELS 762, 763, 765, 766 AND 767
NPS 2 THROUGH 16 / CLASS 150-600
Decades Proven. Field Chosen.
™
OCTOBER 2022

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Summary of Contents for DANIEL 762

  • Page 1 DANIEL ® CONTROL VALVES USER MANUAL MODELS 762, 763, 765, 766 AND 767 NPS 2 THROUGH 16 / CLASS 150-600 Decades Proven. Field Chosen. ™ OCTOBER 2022...
  • Page 2 CONTROL VALVES 762, 763, 765, 766 AND 767 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 3 BE SURE ALL PERSONNEL READ AND FOLLOW THE INSTRUCTIONS IN THIS MANUAL AND ALL NOTICES AND PRODUCT WARNINGS. WARNING! Failure to follow the installation, operation or maintenance instructions for a Daniel product could lead to serious injury or death from explosion or exposure to dangerous substances.
  • Page 4 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. You may also download the correct manual from: http://www.Daniel.com/en-us/automation/daniel...
  • Page 5 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. WE RESERVE THE RIGHT TO MODIFY OR IMPROVE THE DESIGNS OR SPECIFICATIONS OF SUCH PRODUCTS AT ANY TIME.
  • Page 6 Daniel shall, at its option, correct any errors that are found by Daniel in the firmware or Services or repair or replace F.O.B. point of manufacture that portion of the Goods or firmware found by Daniel to be defective, or refund the purchase price of the defective portion of the Goods/Services.

  • Page 7: Table Of Contents

    Operation overview of the control valve ............... 5 1.2.4 Parts list for the Models 762, 763, 765, 766 and 767 Control Valves ......9 Agency certifications for the Models 762, 763, 765, 766 and 767 Control Valves ......41 Chapter 2 Operating conditions and specifications ..............
  • Page 8 Spare parts ........................97 11.1 Recommended spare parts ....................... 97 Chapter 12 Decommission ......................103 12.1 Shut down the control valve ....................103 12.2 Shipment of the control valve ....................103 Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 9: Part I Plan

    USER MANUAL Plan Part I Plan Chapters covered in this part: • Introduction • Operating conditions and specifications • Control valve handling • Prepare the control valve for use User manual www.Daniel.com...

  • Page 10: Chapter 1 Introduction

    Description of the Models 762, 763, 765, 766 and 767 Control Valves • Agency certifications for the Models 762, 763, 765, 766 and 767 Control Valves Purpose of this manual This manual provides guidance to owners and personnel in the installation, operation and...

  • Page 11: Control Valve Application

    1.2.2 Control valve application The Daniel Models 762, 763, 765, 766 and 767 Gas Loaded Relief/Back Pressure Control Valves are specifically designed to regulate and control maximum pipeline pressures or to maintain a minimum back pressure in a system. They have proven to be reliable, rugged and very responsive in controlling pipeline surges and pressures.

  • Page 12: Operation Overview Of The Control Valve

    1.2.3 Operation overview of the control valve The Daniel Models 762, 763, 765, 766 and 767 control valves are normally closed and open on increasing inlet pressure. The basic valve is of the balanced piston operated design. Pressure applied to the inlet side of the piston is equally transmitted to the spring side of the piston.
  • Page 13 When the nitrogen pressure is applied to the top of the oil, (which is in effect a moveable barrier between the piston and nitrogen) plus the spring pressure is greater than line pressure, the valve will be in the closed position. (See below.) Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...
  • Page 14 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Figure 1-3: Closed position • The oil reservoir is supplied with two sight gauges. When the valve is closed the oil level in the reservoir will show oil covering the lower sight glass only.
  • Page 15 Note The spring in the Daniel Nitrogen Loaded Surge Relief Valve is for shipping purposes to ensure piston movement does not cause damage during shipment. This is the only purpose of this spring. Note Equal area on both sides of the piston allow the nitrogen pressure to be set at the actual set point minus spring force rather than a calculated percentage.
  • Page 16 Parts list for the Models 762, 763, 765, 766 and 767 Control Valves Figure 1-5: Models 762, 763, 765, 766 and 767 Control Valves NPS 2"-12" Table 1-1: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS Part number Item number Description 2 inch...
  • Page 17 USER MANUAL Introduction Table 1-1: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 2 inch Quantity 1500399-116 1500399-022 FKM GFLT 1500399-027 FKM V1289 1500399-029 Seat ring 526026-610 Piston...
  • Page 18 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-1: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 2 inch Quantity Cylinder head Horizontal Daniel Class 150 and...
  • Page 19 USER MANUAL Introduction Table 1-1: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 2 inch Quantity Cylinder Horizontal assembly Daniel Buna-N 520770-690 Class 150 and 520770-697 FFKM 520770-695...
  • Page 20 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-1: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 2 inch Quantity FKM GFLT 526770-69G FKM V1289 52770-69M 45°...
  • Page 21 USER MANUAL Introduction Table 1-2: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 3 inch Quantity Seat ring 536026-610 Piston Standard 530024-691 AP option 530024-693 High-pressure 536024-691 O-ring...
  • Page 22 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-2: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 3 inch Quantity Standard 530854-590M High-pressure 536854-590M Vertical Standard...
  • Page 23 USER MANUAL Introduction Table 1-2: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 3 inch Quantity 45° Buna-N 530870-690 530870-697 FFKM 530870-695 NBR (Low-swell) 530870-696 530870-693 530870-692 FKM GFLT...
  • Page 24 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-2: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 3 inch Quantity FKM GFLT 536870-69G FKM V1289 536870-69M...
  • Page 25 USER MANUAL Introduction Table 1-3: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 4 inch Quantity 152078-022 FKM GFLT 152078-027 FKM V1289 152078-029 Backup ring (High pressure) 157196...
  • Page 26 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-3: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 4 inch Quantity Bal-seal (AP option) 159715 Nuts Daniel Class 150 and...
  • Page 27 USER MANUAL Introduction Table 1-3: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 4 inch Quantity FKM GFLT 540870-69G FKM V1289 540870-69M Vertical Buna-N 540970-690 540970-697 FFKM 540970-695...
  • Page 28 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-3: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 4 inch Quantity 546970-693 546970-692 FKM GFLT 546970-69G FKM V1289...
  • Page 29 USER MANUAL Introduction Table 1-4: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 6 inch Quantity FFKM 152079-075 NBR (Low-swell) 152079-120 152079-116 152079-022 FKM GFLT 152079-027 FKM V1289...
  • Page 30 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-4: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 6 inch Quantity Daniel Class 600 566001M DIN PN 16...
  • Page 31 USER MANUAL Introduction Table 1-4: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 6 inch Quantity FFKM 560970-695 NBR (Low-swell) 560970-696 560970-693 560970-692 FKM GFLT 560970-69G FKM V1289...
  • Page 32 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-5: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS Part number Item number Description 8 inch Quantity Cylinder 586471-500 O-ring Buna-N 157006 157006-005 FFKM...
  • Page 33 USER MANUAL Introduction Table 1-5: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 8 inch Quantity NBR (Low-swell) 157074-120 157074-116 157074-022 FKM GFLT 157074-027 FKM V1289 157074-029 Cylinder head...
  • Page 34 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-5: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 8 inch Quantity Cylinder Horizontal assembly Daniel Buna-N 580770-690...
  • Page 35 USER MANUAL Introduction Table 1-5: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 8 inch Quantity FKM GFLT 586770-69G FKM V1289 586770-69M 45° Buna-N 586870-690 586870-697 FFKM 586870-695...
  • Page 36 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-6: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 10 inch Quantity FKM V1289 157014-029 Seat ring 606026-600...
  • Page 37 USER MANUAL Introduction Table 1-6: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 10 inch Quantity 157340-116 157340-022 FKM GFLT 157340-027 FKM V1289 157340-029 Cylinder head Horizontal Standard...
  • Page 38 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-6: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 10 inch Quantity assembly Daniel Buna-N 600770-690 Class 150 and...
  • Page 39 USER MANUAL Introduction Table 1-6: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 10 inch Quantity FKM V1289 606770-69M 45° Buna-N 606870-690 606870-697 FFKM 606870-695 NBR (Low-swell) 606870-696...
  • Page 40 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-7: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 12 inch Quantity Seat ring 626026-600 Piston assembly Standard...
  • Page 41 USER MANUAL Introduction Table 1-7: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 12 inch Quantity 157030-116 157030-022 FKM GFLT 157030-027 FKM V1289 157030-029 Cylinder head Horizontal Standard...
  • Page 42 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-7: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 12 inch Quantity assembly Daniel 620770-697 Class 150 and...
  • Page 43 USER MANUAL Introduction Table 1-7: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 12 inch Quantity 45° Buna-N 626870-690 626870-697 FFKM 626870-695 NBR (Low-swell) 626870-696 626870-693 626870-692 FKM GFLT...
  • Page 44 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Figure 1-6: Models 762, 763, 765, 766 and 767 Control Valves NPS 16" User manual www.Daniel.com...
  • Page 45 USER MANUAL Introduction Table 1-8: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS Part number Item number Description 16 inch Quantity Cylinder 666021-500 O-ring Buna-N 157095 157095-005 FFKM 157095-075 NBR (Low-swell) 157095-120 157095-116 157095-022...
  • Page 46 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-8: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 16 inch Quantity Jack-out screws Standard 151453-100M High pressure...
  • Page 47 USER MANUAL Introduction Table 1-8: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 16 inch Quantity FKM GFLT 660870-69G FKM V1289 660870-69M Vertical Buna-N 660970-690 660970-697 FFKM 660970-695...
  • Page 48 CONTROL VALVES 762, 763, 765, 766 AND 767 Introduction Table 1-8: Part description for a model 762, 763, 765, 766 and 767 Control Valve NPS (continued) Part number Item number Description 16 inch Quantity 666970-693 666970-692 FKM GFLT 66970-69G FKM V1289...

  • Page 49: Operating Conditions And Specifications

    Topics covered in this chapter: • Operating conditions for the control valve • Description of the Models 762, 763, 765, 766 and 767 Control Valves Operating conditions for the control valve Table 2-1: Operating conditions for the control valve Condition type...

  • Page 50: Design Considerations

    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 Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 51: Environmental Conditions

    NOTICE The Daniel Models do not comply with any internationally over-pressurization protection recognized codes. What the Daniel Models do is to allow the movement of an undetermined amount of substance within a pressurized system, not from a pressurized system. 2.1.2...

  • Page 52: Interface Requirements

    Control valve requirements are defined to ensure safe equipment operation. Do not exceed published specifications. Failure to comply may result in death, serious injury and/or damage to the equipment. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 53: Requirements And Limitations For Installation

    Interface requirements Requirements Description Flange type The mechanical connections for Models 762, 763, 765, 766 and 767 control valve are raised face flanges. Other types of flange connections are available per customer request for Daniel control valves. For other ratings or flanges con- sult the factory engineers.

  • Page 54: Minimum Clearances For Installation, Operation And Maintenance

    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. 2.2.3 Minimum clearances for installation, operation and maintenance For certified prints, consult the factory. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...
  • Page 55 10 1/2 11 1/2 3" 13 1/8 4" 14 1/2 6" 17 7/8 8" 22 1/4 23 1/4 10" 26 1/2 27 7/8 12" 30 7/8 33 5/8 36 1/2 16" 41 3/8 1,051 43 5/8 1,108 1,168 User manual www.Daniel.com...
  • Page 56 6" 8 5/8 8 3/4 10 1/2 8" 11 1/4 12 5/8 10" 13 3/8 17 1/2 12" 15 1/2 16 3/4 16" 20 3/4 21 3/4 23 3/4 Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...
  • Page 57 USER MANUAL Operating conditions and specifications Figure 2-3: Dimensions - 45° horizontal installation Table 2-8: Dimensions A - Horizontal installation Dimension A (Daniel Class) Valve size inches millimeters inches millimeters inches millimeters 2" 10 1/4 10 1/2 11 1/2 3"...
  • Page 58 1 7/8 8" 2 3/4 2 1/4 10" 3 3/8 2 3/4 1 1/8 12" 4 5/4 1 3/8 1 5/8 16" 5 1/4 4 1/8 1 1/2 CF=Consult factory Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...
  • Page 59 USER MANUAL Operating conditions and specifications Figure 2-4: Vertical installation Table 2-11: Approximate shipping weight and volume for vertical installation 150 - 300 Daniel Class 600 Daniel Class Shipping weights Shipping volume Shipping weights Shipping volume Valve Cubic Cubic Cubic...
  • Page 60 6" 5.12 0.145 7.19 0.204 8" 9.84 0.279 11.84 0.335 10" 16.32 0.462 1,225 20.45 0.579 12" 1,278 26.83 0.76 1,883 33.29 0.943 16" CF=Consult factory Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 61: Control Valve Handling

    This protects the unpainted surfaces of the flange sealing. A flush contact between the flange cover and the flange sealing face is important. 3.2.3 Storage conditions Store the control valve in a safe area to avoid damage. User manual www.Daniel.com...
  • Page 62 When stacking equipment, follow all the safety standards taking into account the type of box used, the maximum height of the equipment, the maximum number of boxes stacked, etc. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 63: Prepare The Control Valve For Use

    WARNING! LIFTING HAZARD The lifting instructions are for installation and removal of a Daniel control valve only and do not address lifting the control valve while it is attached or bolted to piping. Failure to follow these instructions may result in death, serious injury or equipment damage.

  • Page 64: Lifting Requirements For Personnel

    WARNING! LIFTING HAZARD The lifting instructions are for installation and removal of a Daniel control valve only and do not address lifting the control valve while it is attached or bolted to piping. Failure to follow these instructions may result in death, serious injury or equipment damage.

  • Page 65: Configure The Control Valve

    Adhere to all safety standards and best practices for operating the equipment. Failure to comply may result in death or serious injury. Configure the control valve The factory configures Daniel control valve internal components. Inspect the internal components before installation. 4.3.1...
  • Page 66 Control valve position 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. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 67: Piping Recommendations

    The design of the control valve has not been assessed for the effects of traffic, wind or earthquake loading. Important Ensure that piping or other attachments connected to the control valve are not under stress. Important Provide fire prevention measures and equipment per local regulations. User manual www.Daniel.com...

  • Page 68: Part Ii Install

    CONTROL VALVES 762, 763, 765, 766 AND 767 Install Part II Install Chapters covered in this part: • Installation prerequisites • Installation procedure • Testing the product User manual www.Daniel.com...

  • Page 69: Chapter 5 Installation Prerequisites

    Use the minimum pressure setting on an air wrench. Use the correct tightening sequence for the bolt flanges. Follow your company's internal flange installation procedures. Important Ensure that piping or other attachments connected to the control valve are not under stress. User manual www.Daniel.com...

  • Page 70: Torque Values (Flanges)

    Torque pattern sequences Table 5-2: Cross-pattern tightening sequence when using single tool Nominal pipe size (NPS) Daniel Class 150 Daniel Class 300 Daniel Class 600 1-3-2-4 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8 Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 71: Tools Required For Control Valve Installation

    USER MANUAL Installation prerequisites Table 5-2: Cross-pattern tightening sequence when using single tool (continued) Nominal pipe size (NPS) Daniel Class 150 Daniel Class 300 Daniel Class 600 1-3-2-4 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8 1-5-3-7 2-6-4-8...

  • Page 72: Typical Installation

    NOTICE The Daniel Models do not comply with any internationally over-pressurization protection recognized codes. What the Daniel Models do is to allow the movement of an undetermined amount of substance within a pressurized system, not from a pressurized system. Nitrogen system The nitrogen system must supply a constant pressure to the valve, even under conditions of varying ambient temperatures.

  • Page 73: Gas Plenum Tank Installation And Sizing

    No consideration is given to the volume of gas contained in tubing, fittings and the top portion of the valve itself. Volume displacement (Main valve piston) Valve size Cubic inches Valve size Cubic inches 2" 8" 3" 12.6 10" 4" 12" User manual www.Daniel.com...

  • Page 74: Nitrogen System Panel

    Since the Daniel valve does not consume nitrogen, unlike competitive valves, the need to adjust nitrogen is normally due to changes in pressure due to ambient temperatures.
  • Page 75 USER MANUAL Installation prerequisites Figure 5-2: Surge relief system with nitrogen panel and plenum User manual www.Daniel.com...

  • Page 76: Chapter 6 Installation Procedure

    The property class of the fastener is in accordance with ASME B16.5. Stud bolt and nut types All fasteners (nuts and studs) used in assembling Daniel control valves are made of one of the materials listed in the table below.

  • Page 77: Oil Filling Procedure For Valve With Drain Port

    Remove each nut and bolt as a pair. Thread the matching nut back onto the bolt. Stack them in a fashion that will not cause thread damage. Reuse of stud bolts and nuts The reuse of threaded fasteners is permitted on Daniel control valves under the following conditions: •...
  • Page 78 CONTROL VALVES 762, 763, 765, 766 AND 767 Installation procedure Figure 6-1: NPT plug location Remove plug. Figure 6-2: Removing NPT plug Pour oil through the reservoir port shown in Figure 6-3. The oil should come out of the bleed port.
  • Page 79 4,732 8" 10.875 10,292 8.75 8,281 10" 24.0 22,714 20.5 19,401 12" 43.5 41,168 35.25 33,361 16" 61.0 57,730 44.5 42,115 (1) Consult factory for vertical mounted oil capacities. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 80: Testing The Product

    CONTROL VALVES 762, 763, 765, 766 AND 767 Testing the product Testing the product Commission the control valve After installation, commission the control valve to ensure that the equipment is working properly. 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.

  • Page 81: Part Iii Operate

    USER MANUAL Operate Part III Operate User manual www.Daniel.com...

  • Page 82: Chapter 8 Operation Parameters

    CONTROL VALVES 762, 763, 765, 766 AND 767 Operation parameters Operation parameters Topics covered in this chapter: • Control valve normal operation • Features and benefits • Oil reservoir • Applications Control valve normal operation All series 700 control valves are pressure balanced, single-seated piston operated with 45°...
  • Page 83 The valve will open any time gas pressure is less than line pressure. A pressure switch is recommended in the gas supply line to the valve for alarm actuation should gas pressure decrease below an acceptable operating level. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 84: Applications

    NOTICE The Daniel Models do not comply with any internationally over-pressurization protection recognized codes. What the Daniel Models do is to allow the movement of an undetermined amount of substance within a pressurized system, not from a pressurized system. Back pressure control The Model 762 is ideally suited for back pressure control and minimum pressure drop.
  • Page 85 USER MANUAL Operation parameters Figure 8-3: Pipeline pump station by-pass Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 86: Part Iv Maintain

    CONTROL VALVES 762, 763, 765, 766 AND 767 Maintain Part IV Maintain Chapters covered in this part: • Planned maintenance • Corrective maintenance • Spare parts • Decommission User manual www.Daniel.com...

  • Page 87: Chapter 9 Planned Maintenance

    The control valve does not have pre-installation requirements. If installation is required for maintenance purposes, use the following tools: • Socket wrench • Adjustable wrench • T-handle or extended Allen wrench • Arbor press (may be needed for 4- and 6-inch valves) User manual www.Daniel.com...

  • Page 88: Disassemble/Assemble The Control Valve

    Turn the cylinder over with the ports on top when removing the high pressure seat ring. Remove the set screw from the seat ring. Turn the seat ring counterclockwise to remove the seat ring and then remove the O-ring from the cylinder. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 89: Cylinder Disassembly Nps 16 Valve Only

    Do not remove jack screws (long bolts). Jack screws are spring tension retaining devices and must NOT be tampered with. Follow disassembly procedure above. Failure to comply with instructions may result in serious personal injury or damage to the equipment. User manual www.Daniel.com...
  • Page 90 CONTROL VALVES 762, 763, 765, 766 AND 767 Planned maintenance Figure 9-1: Models 762, 763, 765, 766 and 767 Control Valve jack screws and spring Product remains in the valve below the cylinder head in the piston. Place a drip pan below the valve before starting step 4 (removal of the cylinder head).

  • Page 91: Mechanical Assembly

    Planned maintenance Mechanical assembly 9.4.1 Valve torque specifications Table 9-1: Valve cylinder head torque specifications (stud-nuts) Valve size (in) Daniel Class Num. bolts Min. torque (lbs/ft) Table 9-2: Torque specification for socket-head screws Nominal pipe size Daniel Class Max Torque (ft-lb) 6"...

  • Page 92: Cylinder Reassembly (2" - 12" Valves With Socket Head Screws In Circular Pattern On Cylinder Head) B Style

    CYLINDER RELEASE HAZARD The cylinder assembly is now spring loaded and should be handled with extreme care. Failure to comply may cause serious injury or damage to the equipment. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 93: Cylinder Reassembly (Nps 16 Valve Only)

    Using ¾" - 10 bolts and suitable lifting device, reinstall cylinder and piston assembly back into valve body. Remove ¾" - 10 bolts from cylinder. Reinstall spring into valve. Reverse jack-out nut procedure to alternately tighten. Reinstall cylinder head and reservoir to valve body. User manual www.Daniel.com...

  • Page 94: Planned Maintenance Tasks

    204° C (-65° F to 400° F). Proper lubrication procedure Lubricate the entire surface of the O-ring before installation with a thin layer of high-viscosity silicone oil. Remove excess lubricant. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 95: Chapter 10 Corrective Maintenance

    Do not Isolate the upper chamber (Nitrogen Reservoir) during Shell or Hydro Testing, pressure must be applied to the inlet and upper chamber at the same time. Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...

  • Page 96: Control Valve Troubleshooting

    Control valve troubleshooting Use the table below to troubleshoot the control valve. Contact the nearest Flow Lifecycle Services center for assistance with repairs of Daniel products. It is important that servicing be performed by trained and qualified service personnel. Table 10-1:...

  • Page 97: Chapter 11 Spare Parts

    USER MANUAL Spare parts Spare parts 11.1 Recommended spare parts Table 11-1: Recommended spare parts Description Daniel Class Elastomer O-ring kit Valve Assembly O- 150-300 Buna-N W520155-690 ring kit W520155-697 FFKM W520155-695 Aggressive Products W520155-696 W520155-693 W520155-692 FKM GFLT W520155-69G...
  • Page 98 W560155-696 W560155-693 W560155-692 FKM GFLT W560155-69G FKM V1289 W560155-69M Buna-N W566750-690 W566750-697 FFKM W566750-695 Aggressive Products W560155-696 W566750-693 W566750-692 FKM GFLT W566750-69G FKM V1289 W566750-69M 150-300 Buna-N W580155-690 W580155-697 Daniel Models 762, 763, 765, 766 and 767 Control Valves www.Daniel.com...
  • Page 99 USER MANUAL Spare parts Table 11-1: Recommended spare parts (continued) Description Daniel Class Elastomer O-ring kit FFKM W580155-695 Aggressive Products W580155-696 W580155-693 W580155-692 FKM GFLT W580155-69G FKM V1289 W580155-69M Buna-N W586750-690 W586750-697 FFKM W586750-695 Aggressive Products W580155-696 W586750-693 W586750-692 FKM GFLT...
  • Page 100 For Class 150-300 discard the small O-rings and teflon back up rings. Those are intended for valves with position indicator. Order spare parts Contact Flow Lifecycle Services for Daniel products and provide the following information when ordering parts: • Daniel control valve serial number •...
  • Page 101 USER MANUAL Spare parts • Part description • Quantity User manual www.Daniel.com...

  • Page 102: Chapter 12 Decommission

    Label all parts or place parts in labeled containers during disassembly. Do not use metal clamping devices in direct contact with control valve parts or surfaces. 12.2 Shipment of the control valve Refer to Flow Lifecycle Services for Daniel products information in the preface of this document. User manual www.Daniel.com...
  • Page 103 Contact Us Email: Sales@Daniel.com Phone: +1 (346)-509-3700 Decades Proven. Field Chosen. ™ www.Daniel.com Copyright © 2022 Daniel Measurement and Control. All Rights Reserved. P/N 1-3-9008-562, Rev AL...

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