Emerson Bettis M Series Manuale utente

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

July 2019

Bettis M Series

Stainless Steel Scotch Yoke Actuators

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

Table of Contents

July 2019

Table of Contents

Section 1: Introduction

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

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

1.3 Installation.................................................................................................... 2

Section 2: Maintenance

Section 3: Jackscrew Override

3.1 Jackscrew Operating Instructions.................................................................. 4

3.2 Actuator Stroke Adjustment.......................................................................... 4

3.3 Models 006 through 270 .............................................................................. 4

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

Section 4: Manual HandPump

Hydraulic Override

4.1 Hydraulic Fluid Level...................................................................................... 9

4.2 Remote Mounting the HandPump................................................................. 9

Section 5: Integral Proximity

Switch Mounting

Section 6: Spring Conversion to change Operating Pressure

Section 7: Failure Mode Change - Spring Return

Section 8: Removal of Actuator from Valve

Section 9: Disassembly

9.1 Disassembly of Symmetric Yoke Actuators .................................................. 14

9.2 Disassembly of Canted Yoke Actuators........................................................ 16

Section 10: Assembly & Operating Instructions

10.1 Assembly of Symmetric Yoke Actuators ...................................................... 17

10.2 Spring-Return Only ..................................................................................... 20

10.3 Assembly of Canted Yoke Actuators ............................................................ 21

Table of Contents

July 2019

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

Section 11: Operating Instructions

Section 12: Important Safeguards

Section 13: Additional Safety Instructions for Actuators used

in a Potentially Explosive Atmosphere under

ATEX 2014/34/EU

13.1 Marking ...................................................................................................... 24

13.2 Selection..................................................................................................... 24

13.3 Installation.................................................................................................. 24

13.4 Maintenance ............................................................................................... 24

Section 14: Additional Safety Instructions for Actuators

used in Emergency Shut-down Service

or IEC 61508 safety integrity

level (SIL) Compliant Installations

Table of Contents

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0 July 2019

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

Supply Pressure 40-160 psig, see product nameplate

Supply Medium Any pneumatic uid compatible with materials of construction

Temperature Rating Standard Range: -20°F to 210°F

Optional Range: -65°F to 300°F

Angular Rotation 90 degrees ± 8 degrees

NOTE:

Language translations of the safety related portions of this document are available at

www.emerson.com

Section 1: Introduction

July 2019

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

Introduction

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. Begin by bolting the mounting bracket to actuator only hand tight.

B. Install coupling on valve. Remove or disable any stops on the valve.

Use only the actuator position stops!

C. Install the 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 and physically shift actuator back and forth until coupling and all fasteners

are centered then tighten all bolts and nuts. This procedure will accurately align

valve stem to actuator output shaft and prolong valve stem seal life.

D. Cycle valve / actuator assembly and conrm smooth operation.

E. Adjust the actuator travel stops for perfect valve alignment in both open and

closed positions.

NOTE:

If the valve disk is torque seated (E.G. Vanessa buttery), close the valve against the

actuator stop, then unscrew the stop until turns freely, then screw the stop back in until it

stops, then turn the stop with a wrench one additional turn and lock into place.

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 1 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.

Section 1: Introduction

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0 July 2019

Maintenance

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

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

EXHAUS

XHAUST

SOLENOID

POSITIONER

SOLENOID

POSITIONER

SHUT

OPEN

Section 2: Maintenance

July 2019

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

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 2 and 3.

3.3 Models 006 through 270

See Figure 2:

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.

3.4 Models 370, 740 & 575

See Figure 3:

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

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0 July 2019

Jackscrew Override

Figure 2 Jackscrew Override - Models 006 through 270

OPEN

SHUT

OPEN

SHUT

JACKSCREW FULLY RETRACTED JACKSCREW EXTENDED

Actuator stroke

adjusting screw

Jackscrew seal

Stroke adjusting screw

Jackscrew

Lock nut

Seal

Note: Air escapes unless

jackscrew is fully retracted

Figure 3 Jackscrew Override - Models 370, 575 & 740

OPEN

SHUT

OPEN

SHUT

Lock nut

Sealed jackscrew

assembly

Handwheel

Lock nut

Stroke

adjusting

screw

Stroke adjusting screw

Figure 4 Hydraulic Override

OPEN

SHUT

OPEN

SHUT

Selector valve

Reservoir

Handle

Manual Handpump Specications:

1. Maximum reservoir ll volume = 75 cu. in.

2. Pump relief pressure = 1500 psi

3. Pump volume/stroke = 0.66 cu. in.

4. Handle length = 24 in.

Section 3: Jackscrew Override

July 2019

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0

Jackscrew Override

Single-Acting Spring-Return Two Pistons

Models: 012, 046, 058, 059, 072, 100, 144, 270, 344, 345, 420, 740, 944, 945, 1150,

1480, 1929, 1930, 2380

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

Single-Acting Spring-Return One Piston

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

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

Section 3: Jackscrew Override

Installation, Operation and Maintenance Manual

MAN-02-01-39-0704-EN Rev. 0 July 2019

Jackscrew Override

Double-Acting Air to Air Two Pistons

Models: 012, 059, 072, 100, 144, 270, 345, 420, 740, 945, 1150, 1480, 1930, 2380

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

Double-Acting Air to Air One Piston

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

SEC

TION A-A, MODELS 003-1150

42 48

SECTION A-A, MODELS 1480-2380

SECTION A-A, MODELS 135 - 1150

YOKE SHOWN AT MID-STROKE, POINTER OMITTED FOR CLARITY

3512b

13c

Section 3: Jackscrew Override

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