Emerson Biffi Morin Series User manual

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

May 2020

Bif Morin Series A, B, C, and S

Scotch Yoke Actuators

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

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Notes

May 2020

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Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Table of Contents

May 2020

Table of Contents

Section 1: Introduction

1.1 General Application..................................................................................... 1

1.2 Technical Data............................................................................................. 1

1.3 Installation.................................................................................................. 1

Section 2: Maintenance

Maintenance......................................................................................................... 2

Section 3: Jackscrew Override

3.1 Jackscrew Operating Instructions................................................................ 3

3.2 Actuator Stroke Adjustment........................................................................ 3

3.3 Models 006 through 270 ............................................................................ 3

3.4 Models 370, 575 and 740............................................................................ 4

Section 4: Actuator Construction

Actuator Construction .......................................................................................... 5

Section 5: Manual Handpump Hydraulic Override

5.1 Hydraulic Fluid Level ................................................................................. 13

5.2 Remote Mounting the Handpump............................................................. 13

Section 6: Integral Proximity Switch Mounting

Integral Proximity Switch Mounting.................................................................... 14

Section 7: Spring Conversion to change Operating Pressure

Spring Conversion to change Operating Pressure................................................ 15

Section 8: Failure Mode Change - Spring-Return

Failure Mode Change - Spring-Return.................................................................. 16

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Table of Contents

May 2020

Section 9: Removal of Actuator from Valve

Removal of Actuator from Valve.......................................................................... 17

Section 10: Disassembly

10.1 Disassembly of Symmetric Yoke Actuators ................................................ 18

10.2 Disassembly of Canted Yoke Actuators...................................................... 20

Section 11: Assembly

11.1 Assembly of Symmetric Yoke Actuators .................................................... 21

11.2 Spring-Return Only ................................................................................... 26

11.3 Assembly of Canted Yoke Actuators .......................................................... 27

Section 12: Operating Instructions

Operating Instructions........................................................................................ 28

Section 13: Important Safeguards

Important Safeguards......................................................................................... 29

Section 14: Additional Safety Instructions for Actuators

used in a Potentially Explosive Atmosphere

under ATEX 2014/34/EU

14.1 Marking .................................................................................................... 30

14.2 Selection................................................................................................... 30

14.3 Installation................................................................................................ 30

14.4 Maintenance............................................................................................. 30

Section 15: Additional Safety Instructions for Actuators

used in Emergency Shut-down Service

or IEC 61508 safety integrity level (SIL)

Compliant Installations

Additional Safety Instructions for Actuators used in Emergency

Shut-down Service or IEC 61508 safety integrity level (SIL)

Compliant Installations....................................................................................... 31

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1 May 2020

Introduction

Section 1: Introduction

1.1 General Application

Actuators are designed for "ON-OFF" or modulating control of any quarter-turn ball,

buttery, rotary plug or damper style valve application.

1.2 Technical Data

1.3 Installation

The actuator can be mounted parallel or perpendicular to pipeline. The actuator can

be installed in any convenient position including vertical, horizontal or upside down.

A. Bolt mounting bracket to actuator hand tight. Do not tighten yet.

B. Install coupling on valve. Be sure rotary stops on valve are removed or adjusted

to allow actuator stops to do the stopping.

C. Install actuator and bracket to valve being sure to leave all fastener connections

hand tight. If possible, stroke valve and actuator to a half open position 45° and

physically shift actuator back and forth until coupling and all fasteners are relaxed

then tighten all bolts and nuts. This procedure will accurately align valve stem to

actuator output shaft and prolong valve stem seal life. Lift the actuator at a balance

point near the center housing. Do not lift the weight of the valve, see Figure 1.

D. Cycle valve / actuator assembly and observe for smooth operation.

E. Adjust travel stops for perfect alignment in both open and closed positions.

NOTICE

If jackscrew override is installed, please refer to Section 3 for stroke adjustment.

F. Tubing connections - some models utilize two pistons for added power.

Spring-return (single acting) dual cylinders designs require one "jumper" to make

the supply port common on both pistons. Double-acting (air to air) dual cylinder

designs require two "jumpers". See Figure 2 for typical arrangement.

! CAUTION

Use correct length mounting bolts! Mounting bolts used in actuator mounting pad may

interfere with the actuator rotary mechanism. Select bolts that will not extend more than

two threads above the back of the mounting pad.

Supply Pressure 40 - 160 psig (2.75 - 11 barg), see product nameplate

Supply Medium any pneumatic uid compatible with materials of construction

Temperature Rating Standard Range: -20 °F to +210 °F (-28 °C to +99 °C)

Optional Range: -65 °F to +300 °F (-54 °C to +149 °C)

Angular Rotation 90 degrees ± 8 degrees

Section 1: Introduction

SINGLE ACTING ACTUATOR

TWO CYLINDERS WITH JUMPER

DOUBLE ACTING ACTUATOR

TWO CYLINDERS WITH JUMPER

SUPPLYSUPPLY

EXHAUS

XHAUST

SOLENOID

POSITIONER

SOLENOID

POSITIONER

SINGLE ACTING ACTUATOR

ONE CYLINDER

DOUBLE ACTING ACTUATOR

ONE CYLINDER

SUPPLYSUPPLY

EXHAUSTEXHAUST

SOLENOID

POSITIONER

SOLENOID

POSITIONER

SHUT

OPEN

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Figure 2

Section 2: Maintenance

Actuators are factory lubricated and in general do not require periodic lubrication or

maintenance while in service. Actuators should be visually inspected periodically for

corrosion damage and promptly repaired. Actuators should be operated at least annually

to assure proper operation.

Figure 1

Maintenance

May 2020

DOUBLE-ACTING ACTUATOR

TWO CYLINDERS WITH JUMPER

EXHAUST

SOLENOID

POSITIONER

SUPPLY

EXHAUST

SOLENOID

POSITIONER

SUPPLY

SINGLE ACTING ACTUATOR

TWO CYLINDERS WITH JUMPER

Section 2: Maintenance

OPEN

SHUT

OPEN

SHUT

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Jackscrew Override

Section 3: Jackscrew Override

The jackscrew option is intended for infrequent or emergency on-site operation of the

automated valve.

3.1 Jackscrew Operating Instructions

1. Disengage power supply and vent air from actuator.

2. Operate the handwheel to drive the actuator into the desired position. Valve

position can be veried by checking the actuator position indicator. For models

006 through 270, the jackscrew must be returned to the fully retracted position

before actuator can resume normal operation. Back the jackscrew out until it

stops. Air will leak from the jackscrew unless it has been fully retracted against

its internal seal.

3.2 Actuator Stroke Adjustment

The jackscrew has a built-in actuator stroke adjustment, see Figure 3 and 4.

3.3 Models 006 through 270

See Figure 3:

1. Retract the jackscrew override completely by rotating counter clockwise.

2. Loosen the lock nut and turn the brass adjusting screw to the desired position.

The handwheel will rotate with the adjusting screw. Never make stroke

adjustments by turning the handwheel only.

3. Tighten lock nut.

Figure 3 Jackscrew Override - Models 006 through 270

May 2020

Section 3: Jackscrew Override

JACKSCREW FULLY RETRACTED JACKSCREW EXTENDED

Jackscrew seal

Seal

Lock nut

Jackscrew

Stroke adjusting screw

Note: Air escapes unless

jackscrew is fully retracted

Actuator stroke

adjusting screw

OPEN

SHUT

OPEN

SHUT

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Jackscrew Override

Lock nut

Handwheel

Stroke adjusting

screw

Sealed jackscrew

assembly

Stroke

adjusting screw

3.4 Models 370, 575 and 740

See Figure 4:

1. Retract the jackscrew override completely by rotating clockwise.

2. Loosen the stroke adjusting screw and lock nut.

3. Using the handwheel, turn the jackscrew to adjust the actuator to the

desired position.

4. Screw the adjusting screw until it stops and tighten lock nut.

Section 3: Jackscrew Override

May 2020

Figure 4 Jackscrew Override - Models 370, 575 and 740

2916 7 303928

43 41 24 32 18 19 20 3531 25

37 1 14 15 17 21 33 34 52 57

51545049565553132264462738

11 42 48

43 24

32 31 35 25

12a

12b 13

15b

31 41 36

4b 69

38 27 46 426 253 55 54

56 49 50 51

55 55 56

15a

3512b

13c

2916 7 303928

43 41 24 32 18 19 20 3531 25

37 1 14 15 17 21 33 34 52 57

51545049565553132264462738

11 42 48

43 24

32 31 35 25

12a

12b 13

15b

31 41 36

4b 69

38 27 46 426 253 55 54

56 49 50 51

55 55 56

15a

3512b

13c

2916 7 303928

43 41 24 32 18 19 20 3531 25

37 1 14 15 17 21 33 34 52 57

51545049565553132264462738

11 42 48

43 24

32 31 35 25

12a

12b 13

15b

31 41 36

4b 69

38 27 46 426 253 55 54

56 49 50 51

55 55 56

15a

3512b

13c

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Actuator Constructrion

Section 4: Actuator Construction

Single acting Spring-Return Two Pistons

Models: 012, 046, 058, 059, 072, 100, 270, 344, 345, 420, 740, 944, 945, 1150, 1480,

1929, 1930, 2380

Single acting Spring-Return One Piston

Models: 003, 006, 015, 023, 036, 050, 135, 210, 370 and 575

Double-Acting Air to Air Two Pistons

Models: 012, 059, 072, 100, 270, 345, 420, 740, 945, 1150, 1480, 1930, 2380

Section 4: Actuator Construction

May 2020

SECTION A-A, MODELS 003 - 1150

YOKE SHOWN AT MID-STROKE,

POINTER OMITTED FOR CLARITY

SECTION A-A, MODELS 135 - 1150

Installation, Operation and Maintenance Manual

MAN-03-04-103-0738-EN Rev. 1

Actuator Construction

SECTION A-A, MODELS 135 - 1150

YOKE SHOWN AT MID-STROKE,

POINTER OMITTED FOR CLARITY

SECTION A-A, MODELS 003 - 1150

Double-Acting Air to Air One Piston

Models: 003, 006, 015, 023, 036, 050, 135, 210, 370, 575

Single acting Spring-Return Two Pistons

Models: 1485, 1934, 1935, 2385-5336

Section 4: Actuator Construction

May 2020

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