BIFFI PLA Manuale utente
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
June 2020
Biffi
PLA
Double-Acting Pneumatic Linear Actuator
Copyright © Bif. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.bif.it or from your nearest Bif Center:
Bif Italia s.r.l. - Strada Bif 165, 29017 Fiorenzuola d'Arda (PC) – Italy PH: +39 0523 944 411 – bif_italia@bif.it
June 2020
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
Revision Details
Revision Details
Revision Details
Rev. Date Description Prepared Checked Approved
4 June 2020 General update (Migration to new template)
3 May 2018 Updated Data-plate Ermanni Oreci Vigliano
2 April 2016 Updated applicable regulation (Section 1.1.1) Ermanni Oreci Vigliano
1October 2009 General update Ermanni Oreci Vigliano
0May 1999 Document release Lazzarini Aliani Ziveri
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Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
Table of Contents
Table of Contents
June 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 Identication 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 Bif limit switch box*) ......................... 20
3.6 Calibration of the Operation Time ............................................................ 22
Section 4: Operational Tests and Inspections
Operational Tests and Inspections ...................................................................... 24
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Table of Contents
June 2020
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
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
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Installation, Operation and Maintenance Manual
MAN 619 Rev. 4 June 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
Bif Italia s.r.l. 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
Bif Italia s.r.l. pays the highest attention to collecting and verifying the documentation
contained in this user manual. However Bif Italia s.r.l. 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 Bif Italia s.r.l.
and may be modied without prior notice. All rights reserved.
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June 2020
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
Section 1: General Warnings
General Warnings
1.1.2 Terms and Conditions
Bif Italia s.r.l. guarantees that all the items produced are free of defects in workmanship
and manufacturing materials and meet relevant current specications, 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 specied 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 modied 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 Bif Italia s.r.l. liability shall lapse in the event that any modication
or tampering whatsoever be performed on the actuator.
1.2 Identication Plate
It is forbidden to modify the information and the marks without previous written
authorization by Bif Italia s.r.l.
The plate fastened on the actuator contains the following information (Figure 1).
Figure 1 Data Plate
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Installation, Operation and Maintenance Manual
MAN 619 Rev. 4 June 2020
Section 1: General Warnings
General Warnings
1.3 Introducing the Actuator
PLA 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.
Bif can supply different types of control system following Customer’s requirements.
The expected lifetime of actuator is approximately 25 years .
Figure 2 Identication of actuator parts
Manual handpump MHP (optional)
Pneumatic cylinder
Lifting eyelets
MHP (optional) Hydraulic cylinder (for MHP models)
Valve coupling
Valve position indicator
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June 2020
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
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
PLA 250k 585 300 MHP
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Installation, Operation and Maintenance Manual
MAN 619 Rev. 4 June 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 identication plate correspond with those of order conrmation,
see Section 1.2.
• Check that the actuator is equipped with the ttings as provided for by
order conrmation.
• Check that the actuator was not damaged during transportation: if necessary renovate
the painting according to the specication reported on the order conrmation.
• 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 qualied 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 PLA Actuators
1 = Lifting points
(obligatory)
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June 2020
Installation, Operation and Maintenance Manual
MAN 619 Rev. 4
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.
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