Becker FEP-1000-CH Instruction Manual

Flexible element pilot

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FEP-1000/1500-CH
Series Flexible Element Pilot
Instruction Manual (Rev. C)
Baker Hughes Data Classification : Public

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Summary of Contents for Becker FEP-1000-CH

  • Page 1 FEP-1000/1500-CH Series Flexible Element Pilot Instruction Manual (Rev. C) Baker Hughes Data Classification : Public...
  • Page 2 THESE INSTRUCTIONS PROVIDE THE CUSTOMER/OPERATOR WITH IMPORTANT PROJECT-SPECIFIC REFERENCE INFORMATION IN ADDITION TO THE CUSTOMER/ OPERATOR’S NORMAL OPERATION AND MAINTENANCE PROCEDURES. SINCE OPERATION AND MAINTENANCE PHILOSOPHIES VARY, BAKER HUGHES (ITS SUBSIDIARIES AND AFFILIATES) DOES NOT ATTEMPT TO DICTATE SPECIFIC PROCEDURES, BUT TO PROVIDE BASIC LIMITATIONS AND REQUIREMENTS CREATED BY THE TYPE OF EQUIPMENT PROVIDED.
  • Page 3: Table Of Contents

    Model Number Explanation The FEP-CH pilot is available in two different models to cover The Becker FEP-CH series single-acting pilot represents a sensing pressures from 550 psig to 1500 psig. The number breakthrough in valve control technology for the natural gas expressed in the FEP model designation is the maximum industry.
  • Page 4: Technical Information

    Alloy Steel Totally friction free design. Diaphragm Buna-N with nylon reinforcement Seats and O-Rings Buna-N Other Brands Becker FEP-CH Applications • Primary Pressure Control • Overpressure Protection (Monitor) • Underpressure Protection (Standby) • Relief Valve • Backpressure Control • Power Plant Type Applications Compatible Regulators •...
  • Page 5: Ordering Information

    In all, when ordering, the customer should follow this format: Ordering Example: BPE Model FEP-1000-CH-NC (30-0039), Pressure Control Range 550-1000 psig (Yellow Spring , 25-1306), 1/8” Nozzle (25-1030), “M” Orifice Assembly (25-8162) Table 3.
  • Page 6: Accessories

    Setpoint Motors are equipped with internal limit switches to prevent over-travel of setpoint. 4-20 mA feedback of Remote Setpoint Module is standard. All Becker RSM Series remote Setpoint Modules are rated Explosion Proof Class1, Div 1 for use in hazardous locations. Standard RSM input signals are:...
  • Page 7: Principles Of Operation

    NOZZLE MOLDED SEAT Figure 3. Block turned upside down for back pressure applications. © 2021 Baker Hughes Company. All rights reserved. Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 8 Figure 2. FEP-1000-CH Principles of Operation Pressure Reducing Regulator Mode. © 2021 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 9: Explanation Of Droop

    /4) in order to find the correct spring deflection, X for different intermediate seat positions. (8) X (FOR INTERMEDIATE POSITIONS) = ) x (D V ORIFICE V NOZZLE © 2021 Baker Hughes Company. All rights reserved. Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 10 2398 lbf/in. From Table 9, the for a standard orifice set on #3 in the forward flow direction A FEP-1000-CH gas application using a standard orifice set on is 0.026. Finally, the effective diaphragm area of the FEP #3 in the forward flow direction configuration.
  • Page 11: Piping Schematics

    Table 10 shows the results of the droop calculation (equation closed. Using the model FEP-1000-CH in a gas application with 7) for ΔP values of 200, 400, 600, 800, and 1000 psig. For a ΔP = 800 psig as an example, we can see from Table 10 that if convenience, Table 11 shows the same results as Table 10 given the output is suddenly closed the pressure will increase 10.9 psig...
  • Page 12: Backpressure Control

    Piping Schematics Application #2 Backpressure Control FEP-1000/1500-CH NORMALLY CLOSED UPSTREAM SENSING LINE (1000 PSIG MAX FOR FEP-1000-CH, 1500 PSIG MAX FOR FEP-1500-CH) Flexible Element Regulator (Grove Flexflo 900TE shown) 10 | © 2021 Baker Hughes Company. All rights reserved. Baker Hughes...
  • Page 13: Drawings

    1/2-20 Jam Nut (316) 30-7015 Thread Extension 30-7014 Small Washer 95-2615 O-Ring - 012 30-7058 Top Spacer 30-7011 Conv. Diaphragm w/ Hole 30-7010 Small Piston © 2021 Baker Hughes Company. All rights reserved. | 11 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 14: Fep-1000/1500-Ch Body

    FEP-1000/1500-CH Body Assembly Part No. Description 30-7078 Body Spacer 30-7011 Conv. Diaphragm W/Hole 30-7079 Piston w/Seat 95-2665 O-Ring - 145 98-3269 8-32 x 1/2” SHCS (Alloy) 30-7080 Piston Spacer 98-3056 1/2-20 Jam Nut (316) 41A, 41B 30-7081 1/2-20 Special Nut 98-3285 1/4-20 x 3/4”...
  • Page 15: Assembly Procedures

    (C) and attach it to the other piston using 2 more 8-32 x 1/2” body (C). SHCS (G). Pilot Post - Piston Assembly Single Body O-Ring Assembly © 2021 Baker Hughes Company. All rights reserved. | 13 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 16 Body Diaphragm Assembly Step 2. Slide a piston spacer (I) over each piston. The grooved side of the piston spacer should be facing away from the Step 1. Slide a diaphragm (L) over each piston taking into pistons as shown in Body Spacer Assembly Figure here below. account the diaphragm convolute orientation shown in Body Step 3.
  • Page 17 Step 1 Step 2 Bottom Cartridge Assembly Step 3 Diaphragm Centering © 2021 Baker Hughes Company. All rights reserved. | 15 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 18 1000-1500-CH Chamber Assemblies Assembling the Diaphragm 1000/1500-CH Diaphragm Assembly Slide – 012 O-ring (A) onto the small piston (B). Place the dia- phragm with hole (C) onto the piston (B). Slide the small washer (D) onto the piston (B). Attach the thread extension (E) onto the small piston (B).
  • Page 19 SHCS (O). Bolt the spring chamber (H) into the bottom spacer (K) using six (6) fiberglass washers (N) and six (6) 1/4-20 x 1 -inch SHCS (P). © 2021 Baker Hughes Company. All rights reserved. | 17 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 20 Step 1. Press fit the thrust bearing (AA) into the bearing case by spinning the assembly. Make sure that the spring touches no (BB for a FEP-1000-CH and CC for a FEP-1500-CH). parts of the adjusting screw when spinning. If the spring does touch any part of the screw, then replace the spring and repeat the test.
  • Page 21 (TT) onto the adjusting screw. Note: Be careful not to overtighten the nut, doing so may cause damage to the adjusting screw itself. Complete FEP Assembly © 2021 Baker Hughes Company. All rights reserved. | 19 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 22: List Of Recommended Tools

    List of Recommended Tools 1. Allen wrenches — 9/64”, 3/16”, 1/8” 6. Soft blow hammer 2. Open wrenches — 7/16”, 3/4”, 11/16”, 5/16” 7. O-Ring pik 3. Socket wrenches — 3/8” drive, 7/16”, 3/4” (Deepwell 12 Pt.) 8. Pen (centering of diaphragm) 4.
  • Page 23 SCREW 98-3181 30-7017 7/16 FLAT WASHER 7/16 THREAD SEAL 316 SS PLATED STEEL W/ RUBBER INSERT 98-3227 1/4 I.D. X 1/2 O.D. WASHER FIBERGLASS © 2021 Baker Hughes Company. All rights reserved. | 21 Becker FEP-1000/1500-CH Series Pilot Instruction Manual...
  • Page 24 Find the nearest local Channel Partner in your area: valves.bakerhughes.com/contact-us Tech Field Support & Warranty: Phone: +1-866-827-5378 valvesupport@bakerhughes.com valves.bakerhughes.com Copyright 2021 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.

This manual is also suitable for:

Fep-1000-ch-ncFep-1500-chFep-1500-ch-nc

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