BIFFI OLGAS-H Use And Maintenance Manual
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BIFFI OLGAS-H Use And Maintenance Manual

High pressure spring return hydraulic actuator
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5
20/04/18
4
18/04/16
3
07/08/13
2
31/07/12
1
08/02/10
0
05/05/99
Rev.
Date
OLGAS-H – High pressure spring return hydraulic actuator
Use and maintenance manual
OLGAS-H
SPRING RETURN HIGH
PRESSURE HYDRAULIC
Use and maintenance manual
Updated DATAPLATE
Updated applicable
regulation (chapter 1.1.1)
Added lifting procedure for
valve with horizontal axis
General update
General update
Document release
Description
© Copyright by BIFFI Italia. All right reserved.
Contents may change without notice
ACTUATOR
MAN 609
Ermanni
Ermanni
Ermanni
Ermanni
Ermanni
Lazzarini
Prepared
Orefici
Vigliano
Orefici
Vigliano
Stoto
Vigliano
Stoto
Vigliano
Stoto
Vigliano
Aliani
Ziveri
Checked
Approved
Pag. 1

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Summary of Contents for BIFFI OLGAS-H

  • Page 1 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual OLGAS-H SPRING RETURN HIGH PRESSURE HYDRAULIC ACTUATOR MAN 609 Use and maintenance manual Ermanni Orefici Vigliano 20/04/18 Updated DATAPLATE Updated applicable Ermanni Orefici Vigliano 18/04/16 regulation (chapter 1.1.1)

  • Page 2: Table Of Contents

    3.3.2 Remote control operations ............ 23 3.4 CALIBRATION OF THE ANGULAR STROKE ......25 3.5 CALIBRATION OF MICROSWITCHES (biffi limit switch box) ... 29 3.6 CALIBRATION OF THE OPERATION TIME (if required) ..31 4 Operational tests and inspections ........32 5 Maintenance ..............
  • Page 3 The information contained is of exclusive reserved ownership of BIFFI Italia S.r.l and may be modified without prior notice. All rights reserved. © Copyright by BIFFI Italia. All right reserved.

  • Page 4: General Warnings

    2014/34/EU: Directive and safety instructions for use in hazardous area 1.1.2 Terms and conditions Biffi Italia srl guarantees that all the items produced are free of defects in workmanship and manufacturing materials and meet relevant current specifications, provided they are installed, used and serviced according to the instructions contained in the present manual.

  • Page 5: Identification Plate

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 1.2 IDENTIFICATION PLATE It is forbidden to modify the information and the marks without previous written authorization by BIFFI Italia S.r.l. The plate fastened on the actuator contains the following information (Figure1).

  • Page 6: Data Sheet

    (by BIFFI or at Customer's care), according to the shape and dimensions of the valve stem. BIFFI can supply different types of control system following Customer's requirements. The expected lifetime of actuator is approximately 25 years .

  • Page 7: Storage

    The yoke has bored with keyways for coupling to the valve stem, the dimensions of which are according to Biffi standard tables SCN6200 and SCN6201. © Copyright by BIFFI Italia. All right reserved.
  • Page 8 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. Pag. 8 Contents may change without notice...
  • Page 9 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. Pag. 9 Contents may change without notice...
  • Page 10 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual If required, for the standard models size 0.3 to 6, Biffi can supply an insert bush with un-machined bore in accordance with Biffi standard table SCN6202 enclosed ( see following pages ). On request the insert bush bore can be machined by Biffi to couple the valve stem,.
  • Page 11 Insert bush turned upside down Figure 3 – Insert bush + intermediate coupling flange The Biffi insert bush with 2 external keys at 45° allows to position the keyway for the valve every 90°. Consequently actuator can be mounted in 4 positions at 90° on top of the valve. For biggest actuator models, the bore of the yoke can be machined according to the dimensions of valve stem.

  • Page 12: Actuator Handling (Valve Stem With Vertical Axis)

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 2.3.2 ACTUATOR HANDLING (VALVE STEM WITH VERTICAL AXIS) The lifting and handling of the actuator must be done by qualified personnel and in accordance with the laws and regulations in force.
  • Page 13 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 1 = point of support - 2 = supports for lateral positioning 3 = don’t lay the actuator on tie-rods of cylinder /s and don’t lay the actuator on accessories ( manual override, pneumatic control group etc.
  • Page 14 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual For the transport of OLGAS-H with hydraulic manual hand-pump, when it was necessary put in horizontal position the tank of MHP, to avoid leakage on oil level stick, substitute these with a blind-plug during the transport (a specific warning label for transport in horizontal position is attached on the MHP body);...
  • Page 15 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Failure to comply with the following procedures may impair product warranty. Installation, commissioning and maintenance and repair works should be carried out by qualified staff. A non-conforming assembly could be the source of serious accidents.

  • Page 16: Valve Stem With Horizontal Axis

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual The screwing values in Table 1 were calculated considering the materials ASTM A320 L7 for screws or tie rods and ASTM A194 gr.2H for the nuts. 2.3.3 VALVE STEM WITH HORIZONTAL AXIS The actuator can also be lifted to assemble directly onto the valve with stem with horizontal axis.
  • Page 17 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 2) Balance the weight and lift the actuator until to make possible the rotation of actuator in its final mounting position, with cylinder on top, or spring container placed on top, as showed in the following images: ©...

  • Page 18: Hydraulic Connections

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3) Clean the actuator flange and remove anything that might prevent a perfect adherence to the valve flange and especially all traces of grease. 4) Lift the actuator near to the valve in such a way that the insert bush, assembled on the valve stem, enters the actuator drive sleeve without forcing the coupling .

  • Page 19: Electrical Connections (If Any)

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 2.5 ELECTRICAL CONNECTIONS (IF ANY) Use components appropriate as for type, material and dimensions. The connections should be made by qualified staff. Before carrying out any operation, cut line power off...

  • Page 20: Operation And Use

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3 Operation and use 3.1 OPERATION DESCRIPTION The actuator is operated by: 1) Pressurized motor fluid. 2) Elastic return of compression helicoidally spring. In the first case the alimentation fluid pressurizes a chamber of the cylinder and compresses the spring (Figure 4);...

  • Page 21: Residual Risks

    3.3.1 Emergency manual operation Picture 5 – Olgas with hydraulic manual hand-pump The OLGAS-H actuators can have an emergency manual override in addition to the local and/or remote control panel which controls the oil supplied by a power pack for the “normal” actuator operation.
  • Page 22 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual - relief valve to prevent the oil pressure delivered by the hand pump from exceeding the maximum allowable value - oil tank. On request the emergency manual override can be included in the power pack Picture 6 –...

  • Page 23: Remote Control Operations

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3.3.2 Remote control operations BIFFI has the ability to apply advanced engineering technology to the design and manufacture of hydraulic controls and accessories. The experience and the knowledge acquired in the actuator industry...
  • Page 24 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual materials and protection treatment. The energy supply for the power pack operation can be electric (direct current or alternate current) and/or pneumatic (low pressure or high pressure). Hand pump manual override available on request for oil supply to the actuator in case of energy supply failure.

  • Page 25: Calibration Of The Angular Stroke

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3.4 CALIBRATION OF THE ANGULAR STROKE The angular stroke of the yoke can be adjusted between 82°98° (4° with respect to the nominal positions of complete opening and...
  • Page 26 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Figure 10 – Mechanical stop of the cylinder HYDRAULIC WRENCH WRENCH CYLINDER DIAMETER (mm) (mm) From 16 To 28 From 28 To 40 From 45 To 60 From 70...
  • Page 27 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual For the adjustment of the travel stop screw proceed as follows: (see figures “B”) figures “B” 1) Loosen the lock nut “d”. 2) If the actuator angular stroke is stopped before reaching the end position, unscrew the stop screw “v”...
  • Page 28 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3) If the stop-screw is too hard to be operated, reduce or remove the cylinder pressure, in order to move the mechanism far from the screw. Operate the setting-screw and then pressurize again the cylinder to reach end position.

  • Page 29: Calibration Of Microswitches (Biffi Limit Switch Box)

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 3.5 CALIBRATION OF MICROSWITCHES (BIFFI LIMIT SWITCH BOX ONLY) Operate only the micro-switch corresponding to the direction of operation being carried out, as clearly reported on the micro-switch.
  • Page 30 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual If the index (Picture 12), does not signal the proper position of the valve but is turned by 90°: Remove the roll pin placed on the position indicator (index).

  • Page 31: Calibration Of The Operation Time (If Required)

    Use and maintenance manual 3.6 CALIBRATION OF THE OPERATION TIME (IF REQUIRED) The calibration of the operation time is made by Biffi Italia S.r.L according to customer requirements and to technical data-sheet included in technical documentation. If necessary it’s possible to...

  • Page 32: Operational Tests And Inspections

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 4 Operational tests and inspections Important: To ensure the guaranteed SIL grade, according to IEC 61508, the functionality of actuator must be checked with regular intervals of time, as described in the Safety Manual ©...

  • Page 33: Maintenance

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 5 Maintenance Before carrying out any maintenance operation, it is necessary to close the hydraulic feed line and exhaust the pressure from the actuator cylinder and from the...

  • Page 34: Check And Restore Oil Level In The Hydraulic Control Unit ( Refer To Chapt. 7.2 Table 5 )

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Picture 13 – Level measuring stick 5.1.1 Check and restore oil level in the hydraulic control unit ( refer to chapt. 7.2 table 5 ) Operate the distributor lever to “manual operation” to operate valve and to compress completely the actuator spring.
  • Page 35 Biffi Italia S.r.L respect the customer requirements to scope of supply, for applicable cleanliness level, refer to document: technical data-sheet for actuators Table 2: features of hydraulic oil suggested by BIFFI Italia S.r.l for refilling in different working condition: Standard temperature conditions (-30°C/+85°): Producer...

  • Page 36: Extraordinary Maintenance

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Viscosity at -30° C 39cST Viscosity at 20° C 5,8 cST Viscosity at 50° C 2,1 cST Flash point 152° C Pour point -68° C Specific weight 0,897 Kg/dm3 (or equivalent) 5.2 EXTRAORDINARY MAINTENANCE...
  • Page 37 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Bring the adjustment screw back to the maximum (20) to let the ❑ spring loosen. Before disassembling the cylinder, make sure the above operation of spring release is done.
  • Page 38 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 2) Clean the groove carefully and lubricate it with a protective oil film. 3) Assemble the new O-ring into its groove and lubricate it with a protective oil film.
  • Page 39 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 5) Assemble the end flange by centring it on the inside diameter of the tube, taking care not to damage the O-ring (50). 6) Assemble the nuts (28) onto the tie rods (19). Tighten the nuts to the recommended torque, alternating between opposite corners.
  • Page 40 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. Pag. 40 Contents may change without notice...

  • Page 41: Lubrication Of Mechanism

    It’s necessary restore the grease into spring-cartridge (for this operation remove the plug on end-flange of spring-cartridge and restore a generous coating of grease) The following grease is used by BIFFI for standard working temperature and suggested for re-lubrication: AGIP MU/EP/2...

  • Page 42: Dismantling And Demolition

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 5.4 DISMANTLING AND DEMOLITION Before starting the disassembly a large area should be created around the actuator so to allow any kind of movement without problems of further risks created by work-site.

  • Page 43: Troubleshooting

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 6 Troubleshooting 6.1 FAILURE OR BREAKDOWN RESEARCH Event Possible cause Remedy Actuator does not Lack of power supply Restore it work Lack of hydraulic Open line interception supply...

  • Page 44: Layouts

    Use and maintenance manual 7 Layouts 7.1 SPARE PARTS ORDER For spare parts order to the relevant BIFFI office please make reference to BIFFI order confirmation concerning all the supply, and serial number of the actuator (Sect. 1.2) for any specific spare part for a specific actuator model.

  • Page 45: Parts-List For Maintenance And Replacing Procedure

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 7.2 PARTS-LIST FOR MAINTENANCE AND REPLACING PROCEDURE Table 1: Scotch-yoke mechanism © Copyright by BIFFI Italia. All right reserved. Pag. 45 Contents may change without notice...
  • Page 46 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Table 2: hydraulic cylinder © Copyright by BIFFI Italia. All right reserved. Pag. 46 Contents may change without notice...
  • Page 47 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Table 3: Spring cartridge © Copyright by BIFFI Italia. All right reserved. Pag. 47 Contents may change without notice...
  • Page 48 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Table 4: assembly kit © Copyright by BIFFI Italia. All right reserved. Pag. 48 Contents may change without notice...
  • Page 49 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual Table 5: Hydraulic control unit MHP © Copyright by BIFFI Italia. All right reserved. Pag. 49 Contents may change without notice...
  • Page 50 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. Pag. 50 Contents may change without notice...
  • Page 51 OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. Pag. 51 Contents may change without notice...

  • Page 52: Date Report For Maintenance Operations

    OLGAS-H – High pressure spring return hydraulic actuator Use and maintenance manual 8 Date report for maintenance operations Last maintenance operation date : ( in factory, on delivery ): ….. ……… exec. by : ………… ……… exec. by : …………...

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