Baker Hughes Consolidated 2700 Series Instruction Manual
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Baker Hughes Consolidated 2700 Series Instruction Manual

Safety valve
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Consolidated
™
2700 Series
Safety Valve
Instruction Manual (Rev. F)
Baker Hughes Data Classification : Public

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Summary of Contents for Baker Hughes Consolidated 2700 Series

  • Page 1 Consolidated ™ 2700 Series Safety Valve Instruction Manual (Rev. F) Baker Hughes Data Classification : Public...
  • Page 2 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 3 OPERATOR ARE STRICTLY LIMITED TO THOSE EXPRESSLY PROVIDED IN THE CONTRACT RELATING TO THE SUPPLY OF THE EQUIPMENT. NO ADDITIONAL REPRESENTATIONS OR WARRANTIES BY BAKER HUGHES REGARDING THE EQUIPMENT OR ITS USE ARE GIVEN OR IMPLIED BY THE ISSUE OF THESE INSTRUCTIONS.
  • Page 4 /min gal/min 3.785412 L/min lb/hr 0.4535924 kg/hr psig 0.06894757 barg ft lb 1.3558181 °F 5/9 (°F-32) °C Note: Multiply USCS value with conversion factor to get metric value. iv | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 5: Table Of Contents

    E. Consolidated Hydroset Test Device/Electronic Valve Tester (EVT) Software ........32 F. Hydrostatic Test Plug Removal ......................32 F.1 General Information ........................32 F.2 Hydrostatic Test Plugs ........................34 XVI. Troubleshooting the Consolidated 2700 Series Safety Valve ..............36 XVII. Maintenance Tools and Supplies ......................37 XVIII. Replacement Parts Planning ........................38 A.
  • Page 6 Manufacturer’s Service Repair and Training Program ................40 A. Field Service ............................40 B. Repair Facilities ...........................40 C. Safety Valve Maintenance Training ......................40 vi | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 7: Warranty Information

    Unauthorized Removal of Seals - All new valves and valves repaired in the field by Baker Hughes Field Service are sealed to assure the customer of our guarantee against defective workmanship. Unauthorized removal and/or breakage of this seal will negate our warranty.

  • Page 8: Safety Notice

    (i.e., gloves, etc.) when personnel are in, or around, a valve work area. It is the responsibility of the purchaser or user of Baker Hughes’s Consolidated products to adequately train all personnel who will be working with the involved product.

  • Page 9: Product Safety Sign And Label System

    © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 10: Safety Alerts

    Provide and use Do not work with guarding to prevent valves while under the contact with heated influence of intoxicants and/or pressurized parts. or narcotics. © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 11 Read installation possible severe personal instructions before injury or death. installing valve(s). Wear necessary Always use protective equipment appropriate restoration to prevent procedures. possible injury © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 12: Handling And Storage

    Flange bolts should be tightened evenly to prevent distortion of the valve body and inlet nozzle. Before start-up be sure all threaded points are tight and secure. Prevent dirt from entering the outlet or inlet port. © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 13: General Planning For Maintenance

    For severe service applications, a 3 to 6 month inspection and testing interim may be more appropriate. The specific plant’s operating and service history will better determine this frequency. Baker Hughes encourages preventive maintenance. Occasionally, remachining may be necessary to extend the service life of a valve. Keep all parts for each valve separated to ensure replacement in the same valve.

  • Page 14: Terminology For Pressure Relief Valves

    F. Lift: The actual travel of the disc away from the and the set pressure is called “simmer”. Simmer closed position when a valve is relieving. is generally expressed as a percentage of set pressure. © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 15: Consolidated 2700 Series Safety Valve

    Lever and Cap Assembly DO NOT PLUG Studs (Studded Inlet) Nuts Compression Screw Locknut Cotter Pins (not shown) Figure 1: 2700 Series Safety Valve Construction - Flanged Inlet © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 16: Buttweld Inlet

    IX. Consolidated 2700 Series Safety Valve (Cont.) B. Buttweld Inlet Part Nomenclature Disc Holder Guide Base Yoke Upper Adjusting Ring Upper Adjusting Ring Pin 2735W THRU 2775QW Lower Adjusting Ring Lower Adjusting Ring Pin Spring Top Spring Washer Bottom Spring Washer...

  • Page 17: Operating Principles

    X. Operating Principles The Consolidated 2700 Series Safety Valve operates When the inlet pressure drops to the desired closing on the principle that when steam pressure at the valve pressure, the disc (C) moves downward, causing the inlet, acting over the area of the disc seat (C) and valve to close.

  • Page 18: Recommended Installation Practices

    This distance should be increased pipe between the safety valve and the atmosphere. 12 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 19 SOLIDLY TO BUILDING STRUCTURE FABRICATED DRIP PAN SHOWN YOKE VENT SCHEDULE 40 PIPE DRAIN UNION AS CLOSE POSSIBLE SECTION A-A Figure 5: Valve Installation | 13 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 20 If a silencer is used on a safety valve, it should have is a critical part of the valve system for controlling sufficient outlet area to prevent back pressure from valve blowdown and lift. interfering with the proper operation and discharge 14 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 21 Upon completion, recheck each stud should then be cleared with the boiler manufacturer nut’s torque. Required torque will vary with bolting and Baker Hughes. Refer to Section XIV. B.3 of this material and gaskets used. See your company manual for the proper gagging techniques.

  • Page 22: Outdoor Safety Valve Installation

    Indoor valve installations should have inlet necks insulated only up to the underside of the valve body. Considerations should be given to ambient temperature changes greater than 100°F (37.8°C), because of possible set point changes that may occur. 16 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 23: Disassembly Instructions

    XII. Disassembly A. General Information The Consolidated 2700 Series Safety Valve can be easily disassembled for inspection, reconditioning seats or replacing internal parts. The initial spring load can be established after reassembly. (Refer to Figure 1 and 2 for parts nomenclature).
  • Page 24 RING LAP LOWER ADJUSTING SEAT RING SCALE SEAT BUSHING LOWER ADJ. RING PIN Figure 9: Placing a Ring Lap on Top of the Figure 8: Bushing Seat Seat Bushing 18 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 25: Inspection And Part Replacement

    Inspect for end parallelism in the free height and any obvious unevenness in coils, collapse of coils or general distortion. Figure 10: Spindle | 19 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 26 - onto the spindle tip, disc collar until the disc is free to rock slightly turning it clockwise until the disc threads drop initially, approximately .001 to .002” (0.25 to 20 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 27 If the band is too narrow, the spindle may indent the disc and again the rock will be lost. | 21 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 28 A lap round off the edges of the seat. that is flat within one-half light band is considered satisfactory. Information on the Monochromatic Light and optical flat is available, upon request, from Baker Hughes Consolidated Field Service Department. Figure 15 22 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 29 Table 6: Seat Bushing Replacement Criteria D min. Orifice .125 3.18 .203 5.16 .250 6.35 .313 7.95 .313 7.95 .500 12.70 .438 11.13 | 23 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 30: Re-Assembly Instructions

    .0035 0.089 .0025 0.064 .0030 0.076 .0020 0.051 .0020 0.051 .0015 0.038 .0020 0.051 .0015 0.038 .0020 0.051 .0015 0.038 .0015 0.038 .0010 0.025 .0015 0.038 .0010 0.025 24 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 31 . Per the ASME Section I code, the valve lift must be mechanically verified - .000” - 0.00 mm and shall meet or exceed the required lift. | 25 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 32 Before crimping the seal, assure that the parts DEPTH being sealed cannot be tampered with, without MICROMETER removing the seal. SPINDLE COMPRESSION SCREW COMPRESSION SCREW LOCKNUT YOKE Figure 16 26 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 33: Setting And Testing

    80 percent of the pressure to problems. which the low set valve is adjusted. High water level in the drum. | 27 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 34: Presetting Adjusting Rings

    Upper Ring Seat Level Adjustment in Notches Adjustment in Notches Orifice (Column A) (Column B) Gag safety valve during ring adjustments to avoid possible severe personal injury or death. 28 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 35: Steam Testing Instruction

    The symbol that is present on the nameplate will indicate the proper standard of operation. (See Table 11.) | 29 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 36 2. Position reference to seat level 3. Position reference to the bottom of disc holder. 4. If valve is to be tested on superheated steam, set lower ring at seat level. 30 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 37 7 percent but not less than 30 psi (2.07 barg) Over 1000 to 2000 psig (68.95 to 137.90 barg ) 5 percent but not less than 70 psi (4.83 barg) | 31 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 38: Consolidated Hydroset Test Device/Electronic Valve Tester (Evt) Software

    ±1 percent of set pressure may be expected. Upon request, Baker Hughes will provide pertinent written material concerning the Consolidated Hydroset Test Device or EVT software. This material specifies all required information necessary to ensure proper usage of these devices.
  • Page 39 It is not necessary to gag the safety valves when hydrostatic plugs are used. | 33 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 40: Hydrostatic Test Plugs

    Table 13. blowdown. 10. Remove the cotter pin from the release nut and position the release nut so that .125” (3.17 mm) of 34 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 41 XV. Setting and Testing (Cont.) Figure 19: Yoke and Spring Assembly | 35 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 42: Troubleshooting The Consolidated 2700 Series Safety Valve

    Inlet piping pressure drop too high Reduce inlet pressure drop to less than one-half of required valve blowdown by redesigning inlet piping. Yoke vent is plugged Clear the yoke vent. 36 | © 2022 Baker Hughes Company. All rights reserved. Baker Hughes...

  • Page 43: Maintenance Tools And Supplies

    Part No. Function Container Clover General 4 oz. 199-3 Clover Coarse 4 oz. 199-2 1 lb. 199-11 Kwik-Ak- 1000 Polishing Shun 2 oz. 199-12 | 37 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...

  • Page 44: Replacement Parts Planning

    The valve nameplate contains several necessary • Capacity pieces of information necessary to the proper The Consolidated 2700 Series Safety Valve nameplate operation of the valve. Included are: is located on the base of the valve, to the left of the •...
  • Page 45 • Baker Hughes designed the parts • Baker Hughes guarantees the parts • Consolidated valve products have been in use since 1879 | 39 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 46 XX. Manufacturer’s Service, Repair and Training Program A. Field Service C. Maintenance Training Baker Hughes maintains one of the largest and most Rising costs of maintenance and repair in the utility competent network of field service technicians in the and process industries indicate the need for trained industry.
  • Page 47 | 41 © 2022 Baker Hughes Company. All rights reserved. Consolidated 2700 Series Safety Valve Instruction Manual...
  • Page 48 Copyright 2022 Baker Hughes Company. All rights reserved. Baker Hughes provides this information on an “as is” basis for general information purposes. Baker Hughes does not make any representation as to the accuracy or completeness of the information and makes no warranties of any kind, specific, implied or oral, to the fullest extent permissible by law, including those of merchantability and fitness for a particular purpose or use. Baker Hughes hereby disclaims any and all liability for any direct, indirect, consequential or special damages, claims for lost profits, or third party claims arising from the use of the information, whether a claim is asserted in contract, tort, or otherwise. Baker Hughes reserves the right to make changes in specifications and...

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