BIFFI FCB Series Manuel utilisateur

Service Instructions

VCIOM-15313-EN Rev. 1

March 2022

FCB Series Pneumatic Actuators

Model FCBB Spring-Return Dissasembly and Reassembly

Bif Italia s.r.l. - Strada Bif 165, 29017 Fiorenzuola d'Arda (PC) – Italy PH: +39 0523 944 411 – bif_italia@bif.it

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Notes

March 2022

Service Instructions

VCIOM-15313-EN Rev. 1

iTable of Contents

Service Instructions

VCIOM-15313-EN Rev. 1

Table of Contents

March 2022

Table of Contents

Section 1: Introduction

1.1 General Service Information.......................................................................... 1

1.2 Denitions .................................................................................................... 2

1.3 General Safety Information ........................................................................... 2

1.4 Bif Reference Materials ................................................................................ 3

1.5 Service Support Items................................................................................... 3

1.6 Lubrication Requirements ............................................................................. 3

1.7 General Tool Information .............................................................................. 3

1.8 Actuator Weight ........................................................................................... 4

1.9 Actuator Storage........................................................................................... 4

1.10 Actuator Installation ..................................................................................... 4

1.11 Actuator Startup ........................................................................................... 5

1.12 Actuator Operation....................................................................................... 6

Section 2: Actuator Disassembly

2.1 General Disassembly ..................................................................................... 7

2.2 Spring Cylinder Disassembly.......................................................................... 8

2.3 Housing Disassembly .................................................................................. 10

Section 3: Actuator Reassembly

3.1 General Reassembly .................................................................................... 11

3.2 Housing Reassembly ................................................................................... 11

3.3 Spring Cylinder Reassembly......................................................................... 14

Section 4: Actuator Testing

4.1 Actuator Testing ......................................................................................... 17

4.2 Return to Service......................................................................................... 18

4.3 Pressure Requirement and Limitations for FCBB-SR Actuators ..................... 18

Section 5: Troubleshooting

5.1 Fault Insertion ............................................................................................. 19

5.2 Operational Test.......................................................................................... 20

Section 6: Removal and Decommissioning

6.1 Removal and Decommissioning .................................................................. 21

List of Tables

List of Tables ......................................................................................................... 22

Appendix A: List of Drawings

List of Drawings..................................................................................................... 23

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Notes

March 2022

Service Instructions

VCIOM-15313-EN Rev. 1

Service Instructions

VCIOM-15313-EN Rev. 1

March 2022

Section 1: Introduction

Introduction

Section 1: Introduction

1.1 General Service Information

1.1.1 This service procedure is offered as a guide to enable general maintenance to be

performed on BifTM FCBB-SR spring-return series actuators. Table 1 is a list of

general FCBB-SR models numbers.

Table 1. FCBB-SR Model Numbers

MODEL (1) MODEL (1) MODEL (1)

FCBB315-SR FCBB315-SR-M3 FCBB315-SR-M3HW

FCBB415-SR FCBB415-SR-M3 FCBB415-SR-M3HW

FCBB420-SR FCBB420-SR-M3 FCBB420-SR-M3HW

FCBB520-SR FCBB520-SR-M3 FCBB520-SR-M3HW

FCBB525-SR FCBB525-SR-M3 FCBB525-SR-M3HW

FCBB725-SR FCBB725-SR-M3 FCBB725-SR-M3HW

(1) Also includes actuator models with -10 and -11 as a sufx.

NOTE:

When the actuator model number has “-S” as a sufx, then the actuator is special and may

have some differences that may not be included in this procedure.

1.1.2 Normal recommended service interval for this actuator series is ve years.

NOTE:

Storage time is counted as part of the service interval.

1.1.3 This procedure is applicable with the understanding that all electrical power and

pneumatic pressure have been removed from the actuator.

1.1.4 Remove all piping and mounted accessories that will interfere with the module(s)

that are to be worked on.

1.1.5 This procedure should only be implemented by a technically competent technician

who should take care to observe good workmanship practices.

1.1.6 Numbers in parentheses ( ) indicate the bubble number (reference number) used

on the Bif Assembly Drawing and Actuator Parts List.

1.1.7 When removing seals from seal grooves, use a commercial seal removing tool or a

small screwdriver with sharp corners rounded off.

1.1.8 Use a non-hardening thread sealant on all pipe threads.

! CAUTION

Apply the thread sealant as per the manufacturer’s instructions.

1.1.9 Bif recommends that disassembly of the actuator should be done in a clean area

on a workbench.

March 2022

Service Instructions

VCIOM-15313-EN Rev. 1

Section 1: Introduction

Introduction

1.2 Denitions

! WARNING

If not observed, user incurs a high risk of severe damage to actuator and/or fatal injury

to personnel.

! CAUTION

If not observed, user may incur damage to actuator and/or injury to personnel.

NOTE:

Advisory and information comments provided to assist maintenance personnel to carry out

maintenance procedures.

NOTE:

This product is only intended for use in large-scale xed installations excluded from the

scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances

in electrical and electronic equipment (RoHS 2).

M3:

Jackscrew or jackscrew assembly

ES:

Extended Stop(s)

1.3 General Safety Information

1.3.1 Products supplied by Bif, in its “as shipped” condition, are intrinsically safe if the

instructions contained within this Service Instruction are strictly adhered to and

executed by well-trained, equipped, prepared and competent personnel.

! WARNING

For the protection of personnel working on Bif actuators, this procedure should be

reviewed and implemented for safe disassembly and reassembly. Close attention should

be noted to the WARNINGS, CAUTIONS and NOTES contained in this procedure.

! WARNING

This procedure should not supersede or replace any customer’s plant safety or work

procedures. If a conict arises between this procedure and the customer’s procedures the

differences should be resolved in writing between an authorized customer’s representative

and an authorized Bif representative.

Service Instructions

VCIOM-15313-EN Rev. 1

March 2022

Section 1: Introduction

Introduction

1.3.2 Electrostatic Charge

! WARNING

An electrostatic charge risk is present on the actuator surface; in case of cleaning,

use only antistatic cloth; in case of maintenance, avoid all rubbing/frictions that could

electrostatically charge the equipment.

1.4 Bif Reference Materials

1.4.1 FCBBXXX-SRX Assembly Drawing, use part number 152230.

1.4.2 FCBBXXX-SRX-M3HW Assembly Drawing, use part number 152608.

1.5 Service Support Items

1.5.1 Bif Service Kit

1.5.2 Commercial leak testing solution

1.5.3 Non-hardening thread sealant

1.6 Lubrication Requirements

1.6.1 The actuator should be relubricated at the beginning of each service interval using

the following recommended lubricants.

NOTE:

Lubricants other than those listed in step 1.6.2 should not be used without prior written

approval of Bif Product Engineering. The lubricant item number on some assembly

drawings is item (5) while the Bif service kits lubricant item number is item number (500).

1.6.2 Standard and high temperature services (-20 °F to +350 °F)/(-29 °C to 176 °C)

use Bif ESL-5 lubricant. ESL-5 lubricant is contained in the Bif Module Service Kit

in tubes or cans and they are marked ESL-5 and 10 lubricant. For low temperature

service (-40 °F to 150 °F)/(-40 °C to 65.6 °C) use ESL 15 lubricant. ESL 15 lubricant

is contained in low temperature Bif module service kits in tubes or cans and they

are marked ESL 15 lubricant.

1.7 General Tool Information

1.7.1 All threads on FCB series actuators are inch unied and NPT.

1.7.2 All tools/hexagons are American Standard inch. Two adjustable wrenches,

Allen wrench set, small standard screwdriver with sharp edges rounded off,

medium-size standard screwdriver, diagonal cutting pliers, external snap ring

pliers, at le, drive ratchet/deepwell socket set and torque wrench

(up to 2,000 in-lb/226 Nm).

March 2022

Service Instructions

VCIOM-15313-EN Rev. 1

Section 1: Introduction

Introduction

Actuator

Model

Approximate

Weight (3)

Actuator

Model

Approximate

Weight (3)

FCBB LB KG FCBB LB KG

315-SR40 (1) 22 10.0 520-SR40 (1) 45 20.4

315-SR60 (1) 23 10.4 520-SR60 (1) 48 21.8

315-SR80 (1) 26 11.8 520-SR80 (1) 49 22.2

315-SR100 (1) 25 11.4 520-SR100 (1) 53 24.0

415-SR40 (1) 27 12.2 525-SR40 (2) 62 28.1

415-SR60 (1) 29 13.2 525-SR60 (2) 65 29.5

415-SR80 (1) 30 13.6 525-SR80 (2) 65 29.5

415-SR100 (1) 31 14.1 525-SR100 (2) 67 30.4

420-SR40 (1) 37 16.8 725-SR40 (2) 97 44.0

420-SR60 (1) 39 17.7 725-SR60 (2) 98 44.5

420-SR80 (1) 40 18.1 725-SR80 (2) 104 47.2

420-SR100 (1) 41 18.6 725-SR100 (2) 107 48.5

(1) When model has -M3HW add 2.0 pounds/0.9 kilograms.

(2) When model has -M3HW add 4.0 pounds/1.8 kilograms.

(3) Weight is for bare actuator without accessories or valve adaptation.

1.9 Actuator Storage

For applications where the actuator is not put into immediate service it is recommended

that the actuator be cycled with regulated clean/dry pneumatic pressure at least once per

month. Indoor storage, if available, is recommended for all actuators. Care should be taken

to plug all open ports on actuator and controls to keep out foreign particles and moisture.

Also, actuators should not be stored in an atmosphere harmful to resilient seals. For

extended storage, contact the factory.

1.10 Actuator Installation

1.10.1 Since there are many valve and actuator combinations, it is not practical to include

detailed instructions for each type. Mountings are designed to be as simple as

possible to keep guess work out of installation.

1.10.2 Actuators are shipped from the factory with the travel stops adjusted for

approximately 90° rotation. Generally it is necessary to make slight travel stop

adjustments once the actuator is installed on the valve. Refer to the valve

manufacturer’s recommendations for specic requirements. When the valve has

internal stops, the actuator should be adjusted at the same points.

NOTE:

The actual “stopping” should be done by the actuator. If the valve does not have internal

stops, adjust the actuator to the full open position. Using this as a reference point, rotate the

valve until it’s closed and adjust to the valve manufacturer’s specications for total rotation.

1.8 Actuator Weight

Table 2. Actuator Weight

Service Instructions

VCIOM-15313-EN Rev. 1

March 2022

Section 1: Introduction

Introduction

1.10.3 Good instrument practices are also recommended. Clean/dry regulated

pneumatic pressure is essential for long service life and satisfactory operation.

It should be noted that new pneumatic lines often have scale and other debris in

them and these lines should be purged of all foreign material.

NOTE:

Scale and debris can damage control valves, solenoids, seals, etc.

1.11 Actuator Startup

1.11.1 Prestart-up checks

a. Unit has been mounted on valve properly. Gear ange mounting bolts,

stem key and setscrew(s) are installed and secured

b. No tubing damaged or accessories dislodged during shipping

or installation

c. Indicated position conrms valve position

d. All switching valves in normal operating position as per

Schematic/Instructions

1.11.2 Check Connections

a. Pneumatic/hydraulic components connected as per schematic enclosed

or in service manual supplied

b. Pneumatic supply connected to identied ports

c. Electrical connections terminals are secure

d. Wiring as per enclosed diagram or service manual supplied

1.11.3 When actuator is rst put into service it should be cycled with regulated

pneumatic pressure. This is necessary because the seals have been stationary,

causing them to take a “set”. Therefore, the actuator should be operated through

several cycles, exercising the seals, resulting in a service-ready condition.

1.11.4 The actuator speed of operation is determined by a number of factors including:

a. Power supply line length

b. Power supply line size

c. Power supply line pressure

d. Control valve and tting orice size

e. Torque requirements of the valve

f. Size of the actuator

g. Setting of speed controls

March 2022

Service Instructions

VCIOM-15313-EN Rev. 1

Section 1: Introduction

Introduction

1.11.5 Due to the interaction of these variables it is difcult to specify a “normal”

operating time. Faster operating times may be obtained by using one or more of

the following:

a. Larger supply lines

b. Larger control valve

c. Higher supply pressure*

d. Quick exhaust valves

*Not to exceed maximum operating pressure of actuator or control components slower

operating times may be obtained using ow control valves to meter the exhaust. Excessive

exhaust ow metering may cause erratic operation. Normally, incoming supply should not

be metered.

1.12 Actuator Operation

1.12.1 Controlled Operation: Controlled operation is accomplished by pressurizing

and/or depressurizing the appropriate cylinder inlet(s) of a double-acting.

Do not exceed the pressures indicated on actuator nameplate.

1.12.2 Manual Operation: All pressure must be vented or equalized on both sides of the

pneumatic piston prior to manual operation.

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