Emerson Bettis GVO LP DA User manual

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

October 2020

Bettis GVO LP DA

Double-Acting Pneumatic Linear Actuator

October 2020

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Revision Details

Rev. Date Description Prepared Checked Approved

1 October 2020 First issue

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Table of Contents

October 2020

Table of Contents

Section 1: General Warnings

1.1 Generalities................................................................................................... 1

1.1.1 Applicable Regulation ........................................................................ 1

1.1.2 Terms and Conditions......................................................................... 2

1.2 Identication Plate ........................................................................................ 2

1.3 Introducing the Actuator............................................................................... 3

1.4 Data Sheet .................................................................................................... 4

Section 2: Installation

2.1 Checks Upon Actuator Receipt ...................................................................... 5

2.2 Actuator Handling......................................................................................... 5

2.3 Storage ......................................................................................................... 6

2.4 Actuator Assembly on the Valve.................................................................... 7

2.4.1 Types of Assembly .............................................................................. 7

2.4.2 Assembly Procedure........................................................................... 7

2.5 Pneumatic Connections .............................................................................. 12

2.6 Electrical Connections (If Any).................................................................... 12

2.7 Commissioning.......................................................................................... 13

Section 3: Operation and Use

3.1 Operation Description ............................................................................... 14

3.2 Residual Risks............................................................................................. 15

3.3 Operations................................................................................................. 15

3.3.1 Local Pneumatic Operation ............................................................. 15

3.3.2 Electric Remote Control to Open and to Close ................................. 16

3.3.3 Emergency Manual Operation by MSJ / MH.......................................... 16

3.3.4 Emergency Manual Operation by MHP ................................................ 17

3.4 Calibration of The Linear Stroke.................................................................. 17

3.5 Calibration of Micro-Switches (For Bettis Limit Switch Box*) ...................... 20

3.6 Calibration of the Operation Time ............................................................. 22

Section 4: Operational Tests and Inspections

Operational Tests and Inspections ....................................................................... 24

Table of Contents

October 2020

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Table of Contents

Section 5: Maintenance

5.1 Periodic Maintenance................................................................................. 25

5.1.1 Check and Restore Oil Level in the Gas-Hydraulic Tanks ................... 26

5.1.2 Gas Supply Dehydrating Filter Maintenance (If Foreseen)................. 27

5.1.3 Lubrication of Actuator.................................................................... 28

5.2 Extraordinary Maintenance ........................................................................ 29

5.2.1 Replacement of Cylinder Seals ........................................................ 29

5.3 Dismantling and Demolition ...................................................................... 33

Section 6: Troubleshooting

6.1 Failure or Breakdown Research................................................................... 34

Section 7: Layouts

7.1 Spare Parts Order....................................................................................... 35

7.2 Parts List for Maintenance and Replacing Procedure................................... 36

Section 8: Date Report for Maintenance Operations

Date Report for Maintenance Operations ............................................................. 45

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0 October 2020

Section 1: General Warnings

General Warnings

Section 1: General Warnings

NOTICE

The manual is an integral part of the machine, it should be carefully read before carrying

out any operation and it should be kept for future references.

1.1 Generalities

Emerson actuators are conceived, manufactured and controlled according to the Quality

Control System in compliance with EN-ISO 9001 international regulation.

1.1.1 Applicable Regulation

EN ISO 12100:2010: Safety of machinery – General principles for design –

Risk assessment and risk reduction

2006/42/EC: Machine directive

2014/68/EU: Directive for pressure PED equipment

2014/35/EU: Directive for low voltage equipment

2014/30/EU: Directive for the electromagnetic compatibility

2014/34/EU: Directive and safety instructions for use in hazardous area

NOTICE

Emerson pays the highest attention to collecting and verifying the documentation

contained in this user manual. However Emerson is not liable for any mistakes contained

in this manual, for damage or accidents due to the use of the latter. The information

contained is of exclusive reserved ownership of Emerson and may be modied without

October 2020

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Section 1: General Warnings

General Warnings

1.1.2 Terms and Conditions

Emerson guarantees that all the items produced are free of defects in workmanship

and manufacturing materials and meet relevant current specications, provided they

are installed, used and serviced according to the instructions contained in the present

manual. The warranty can last either one year from the date of installation by the initial

user of the product, or eighteen months from the date of shipment to the initial user,

depending on which event occurs rst. All detailed warranty conditions are specied in

the documentation forwarded together with the product. This warranty does not cover

special products or components not warranted by subcontractors, or materials that were

used or installed improperly or were modied or repaired by unauthorized staff. In the

event that a fault condition be caused by improper installation, maintenance or use, or by

irregular working conditions, the repairs will be charged according to applicable fees.

The warranty and Emerson liability shall lapse in the event that any modication or

tampering whatsoever be performed on the actuator.

1.2 Identication Plate

It is forbidden to modify the information and the marks without previous written

authorization by Emerson.

The plate fastened on the actuator contains the following information (Figure 1).

Figure 1 Data Plate

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0 October 2020

Section 1: General Warnings

General Warnings

1.3 Introducing the Actuator

Bettis GVO LP Double-Acting Pneumatic Low-Pressure Linear Actuators, are suitable for the

operation of linear valves (wedge gate valves, through conduit gate valves) for ON-OFF and

modulating heavy-duty service.

The actuator is made up of a pneumatic cylinder and a mounting pedestal complete with

a joint for the coupling to the valve stem of actuator output stem. The valve is actuated in

opening and in closing position by the actuator pneumatic cylinder that is pressurized in one

or in the other direction.

The linear stroke of the valve is adjustable by means of the external mechanical stop for

upward position and by the adjustment of the coupling of valve stem to actuator joint for

the downward position.

The actuator pedestal has a ange with threaded holes to x the actuator to the valve.

Emerson can supply different types of control system following Customer’s requirements.

The expected lifetime of actuator is approximately 25 years .

Figure 2 Identication of actuator parts

Manual handpump MHP (optional)

Pneumatic cylinder

Lifting eyelets

MHP (optional) Hydraulic cylinder (for MHP models)

Valve coupling

Valve position indicator

October 2020

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Section 1: General Warnings

General Warnings

1.4 Data sheet

Supply uid Air, Nitrogen or sweet gas

Operating temperature Standard: from –30 °C to +100 °C

Optional: from –60 °C to +140 °C

Supply pressure 10.5 bar max.

Manual override

Stroke (mm)

Cylider diameter (mm)

Max. allowable thrust (N)

Double-Acting actuator

GVO LP DA 250k 585 300 MHP

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0 October 2020

Section 2: Installation

Installation

Section 2: Installation

2.1 Checks Upon Actuator Receipt

• Check that the model, the serial number of the actuator and the technical data

reported on the identication plate correspond with those of order conrmation,

see Section 1.2.

• Check that the actuator is equipped with the ttings as provided for by

order conrmation.

• Check that the actuator was not damaged during transportation: if necessary renovate

the painting according to the specication reported on the order conrmation.

• If the actuator is received already assembled with the valve, its settings have

already been made at the factory.

• If the actuator is delivered separately from the valve, it is necessary to check,

and if required, to adjust, the settings of the mechanical stops, (refer to Section 3.4)

and of micro-switches (if any) refer to Section 3.5.

2.2 Actuator Handling

NOTICE

The lifting and handling should be made by qualied staff and in compliance with the laws

and provisions in force.

! WARNING

The fastening points are appropriate for the lifting of the actuator alone and not for the

valve + actuator assembly. Avoid that during the handling, the actuator passes above the

staff. The actuator should be handled with appropriate lifting means. The weight of the

actuator is reported on the delivery bill.

For a correct lifting procedure, please refer to following Figures.

Figure 3 Lifting Points for Bettis GVO LP DA Actuators

1 = Lifting points

(obligatory)

October 2020

Installation, Operation and Maintenance Manual

VCIOM-15792-EN Rev. 0

Section 2: Installation

Installation

Figure 4 Positioning by chains and by slings

1. Point of support

2. Don’t lay the actuator on tie-rods of cylinder

3. Don’t lay the actuator on accessories

(manual handpump, manual jackscrew, pneumatic control group etc.)

2.3 Storage

If the actuator needs storage, before installation follow these steps:

• Place it on a wood surface in order not to deteriorate the area of valve coupling.

• Make sure that plastic plugs are present on the hydraulic and electrical

connections (if present).

• Check that the protection of the control system and of the limit switch box (if any)

are properly closed.

If the storage is long-term or outdoor:

• Keep the actuator protected from direct weather conditions.

• Replace plastic plugs of hydraulic and electrical connections (if any) with metal

plugs that guarantee perfect tightness.

• Coat with oil, grease or protection disc, the valve coupling area.

• Periodically operate the actuator, refer to Section 3.3.

Table of contents

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