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BIFFI ALGAS-MHP Use And Maintenance Manual

Spring return pneumatic actuator with hydraulic manual hand-pump
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5
21/03/18
4
18/04/16
3
14/07/14
2
11/06/12
1
11/01/12
0
26/09/11
Rev.
Date
ALGAS-MHP
SPRING RETURN PNEUMATIC
ACTUATOR WITH HYDRAULIC
MANUAL HAND-PUMP
MAN 689
Use and maintenance manual
Updated Data-plate
Updated applicable
regulation (chapter 1.1.1)
Updated doc. index
Updated document
Added vertical
assembly description
Document release
Description
© Copyright by BIFFI Italia. All right reserved.
Contents may change without notice
Use and maintenance manual
Ermanni
Orefici
Ermanni
Orefici
Ermanni
Cristalli
Ermanni
Stoto
Ermanni
Stoto
Ermanni
Stoto
Prepared
Checked
"ALGAS-MHP"
Vigliano
Vigliano
Orefici
Vigliano
Vigliano
Vigliano
Approved
page 1

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Summary of Contents for BIFFI ALGAS-MHP

  • Page 1 Stoto Vigliano 11/06/12 Updated document Added vertical Ermanni Stoto Vigliano 11/01/12 assembly description Ermanni Stoto Vigliano 26/09/11 Document release Rev. Date Description Prepared Checked Approved © Copyright by BIFFI Italia. All right reserved. page 1 Contents may change without notice...

  • Page 2: Table Of Contents

    3.1.2 Travel stop screw screwed on the end flange of spring container ___________________________________________ 22 3.2 Calibration of limit-switches (BIFFI limit switch box only) _ 24 3.3 Calibration of operating time in supply operation ________ 26 3.4 Preparation for start-up______________________________ 27 3.4.1 Pneumatic connections ____________________________ 27...
  • Page 3 8.1 Parts-list for maintenance and replacing procedure ______ 49 9 Date report for maintenance operations ___________________ 54 NOTES: BIFFI Italia has taken every care in collecting and verifying the documentation contained in this instruction and operating manual. Nevertheless Biffi Italia does not provide any guarantees for this instruction manual.

  • Page 4: 1General 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

    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). Figure 1 – Data plate 1.3 Description of the actuator...
  • Page 6 The actuator yoke has a hole with keyways suitable for the assembly of an insert bush or a stem extension. Their internal hole is machined (by BIFFI or at Customer's care), according to the shape and dimensions of the valve stem.

  • Page 7: Installation

    If possible, it is also advisable, to periodically operate the actuator with filtered, dehydrated and lubricated air; after such © Copyright by BIFFI Italia. All right reserved. page 7 Contents may change without notice...

  • Page 8: Assembling The Actuator Onto The Valve

    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 9 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 9 Contents may change without notice...
  • Page 10 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 10 Contents may change without notice...
  • Page 11 “ALGAS-MHP" 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. On request the insert bush bore can be machined by...
  • Page 12 Insert bush turned upside down Picture 4 – 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 13 2.1 Figure 2.1 Example of hook with safety latch Figure 2.2 – Lifting points: 1-2 (obligatory) 3 (balancing) © Copyright by BIFFI Italia. All right reserved. page 13 Contents may change without notice...
  • Page 14 • During handling, do not transport the suspended actuator above staff members in charge of the operation. DO NOT USE the lifting eyelets on actuator to lift valve + actuator assembly © Copyright by BIFFI Italia. All right reserved. page 14 Contents may change without notice...
  • Page 15 Any lifting method different from what described above is strictly forbidden. BIFFI reject any responsibility for damages to goods or injuries to persons coming from wrong lifting operations. The actuator can be assembled onto the valve flange either by using the actuator-housing flange with threaded holes, or by the interposition of an adaptor flange or a spool piece.
  • Page 16 The stud bolts must be made of ASTM A320 L7 steel; the nuts must be made of ASTM A194 grade 2 steel. © Copyright by BIFFI Italia. All right reserved. page 16 Contents may change without notice...
  • Page 17 To make a correct lifting procedure proceed as follow: 1) Connect properly the actuator lifting points 1 with chains, and connect by suitable slings the support brackets 2 and 3 © Copyright by BIFFI Italia. All right reserved. page 17 Contents may change without notice...
  • Page 18 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: © Copyright by BIFFI Italia. All right reserved. page 18 Contents may change without notice...
  • Page 19 ASTM A320 L7 steel; the nuts must be made of ASTM A194 grade 2 steel. 6) If possible, operate the actuator to check that it moves the valve smoothly. © Copyright by BIFFI Italia. All right reserved. page 19 Contents may change without notice...

  • Page 20: Operation And Use

    (fully open or closed valve), screw the stop screw by turning it clockwise until the valve reaches the right position. 5) Tighten the protection for stopper and the plug (t) © Copyright by BIFFI Italia. All right reserved. page 20 Contents may change without notice...
  • Page 21 “ALGAS-MHP" Use and maintenance manual HYDRAULIC WRENCH WRENCH WRENCH CYLINDER SIZE (mm) (mm) (mm) © Copyright by BIFFI Italia. All right reserved. page 21 Contents may change without notice...

  • Page 22: Travel Stop Screw Screwed On The End Flange Of Spring Container

    3.1.2 Travel stop screw screwed on the end flange of spring container For the adjustment of the travel stop screw proceed as follows: (see figures “B”) figures “B” © Copyright by BIFFI Italia. All right reserved. page 22 Contents may change without notice...
  • Page 23 0150 SPRING WRENCH WRENCH CONTAINER SIZE (mm) (mm) 0200 0350 0400 0700 1100 1200 2000 2500 3800 5100 5400 8300 9600 9800 11000 15000 15600 © Copyright by BIFFI Italia. All right reserved. page 23 Contents may change without notice...

  • Page 24: Calibration Of Limit-Switches (Biffi Limit Switch Box Only)

    Check that the cover and the index show the proper position of ❑ the valve (Picture 11). Tighten the screws. ❑ Picture 9 – Micro-switches Picture 10 – Cam adjustment © Copyright by BIFFI Italia. All right reserved. page 24 Contents may change without notice...
  • Page 25 Adjust the relative cams properly. Position indicator (index) Picture 11 – Position indicator and pin for micro-switches box © Copyright by BIFFI Italia. All right reserved. page 25 Contents may change without notice...

  • Page 26: Calibration Of Operating Time In Supply Operation

    Use and maintenance manual 3.3 Calibration of operating time in supply operation 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 27: Preparation For Start-Up

    If conduits are used, it is advisable to carry out the connection to the electrical enclosures by inserting hoses so as not to cause anomalous stress on the housing cable entries. © Copyright by BIFFI Italia. All right reserved. page 27 Contents may change without notice...

  • Page 28: Start-Up

    “MHP” hydraulic manual override in the released position. (see Fig.1) LOCAL CONTROL Fig. 1 STOP VALVE CLOSED FOR HAND PUMP OPERATION STOP VALVE OPEN FOR SPRING OPERATION © Copyright by BIFFI Italia. All right reserved. page 28 Contents may change without notice...

  • Page 29: Operational Tests And Inspections

    To ensure the guaranteed SIL grade, according to Important: IEC 61508, the functionality of actuator must be checked with regular intervals of time, as described in the Safety Manual © Copyright by BIFFI Italia. All right reserved. page 29 Contents may change without notice...

  • Page 30: Maintenance

    If the filter is made of cellulose, it must be replaced when clogged. 5) Check that the external components of the actuator are in good conditions. © Copyright by BIFFI Italia. All right reserved. page 30 Contents may change without notice...

  • Page 31: Special Maintenance

    Bring the adjustment screw back to the maximum (26) to let the ❑ spring loosen. Before disassembling the cylinder, make sure the above operation of spring release is done. © Copyright by BIFFI Italia. All right reserved. page 31 Contents may change without notice...

  • Page 32: Replacement Of Cylinder Seals

    (15) to the recommended torque. 3) Lubricate the piston rod (20) surface, with a protective grease film and introduce it into the head flange hole, taking care not to © Copyright by BIFFI Italia. All right reserved. page 32 Contents may change without notice...
  • Page 33 © Copyright by BIFFI Italia. All right reserved. page 33 Contents may change without notice...
  • Page 34 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 34 Contents may change without notice...

  • Page 35: Replacement Of Hydraulic Cylinder Seals (See Fig.2)

    To replace the piston seal ring (9) and the O-ring (19) proceed as follows: 1) Remove the existing Teflon seal ring (9) and the O-ring (19) from their groove. © Copyright by BIFFI Italia. All right reserved. page 35 Contents may change without notice...
  • Page 36 Lubricate with protective grease film the tube inside surface and the bevels at the ends. © Copyright by BIFFI Italia. All right reserved. page 36 Contents may change without notice...
  • Page 37 © Copyright by BIFFI Italia. All right reserved. page 37 Contents may change without notice...
  • Page 38 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 38 Contents may change without notice...

  • Page 39: Mhp Hydraulic Manual Override Maintenance And Trouble Shooting

    (Ot). The relief valve (395) prevents that the oil pressure, into the hydraulic cylinder, exceeds a set value. © Copyright by BIFFI Italia. All right reserved. page 39 Contents may change without notice...

  • Page 40: Check Of Oil Level Into The Oil Tank

     Screw and tighten the dipstick. For refill use oil of the same brand as the one in the Hydraulic manual override tank Table 1: 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 41 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) © Copyright by BIFFI Italia. All right reserved. page 41 Contents may change without notice...
  • Page 42 Carry out a few operations to check that the hydraulic unit works properly both with pneumatic operation and with manual operation and that there are not leakages. © Copyright by BIFFI Italia. All right reserved. page 42 Contents may change without notice...
  • Page 43 “ALGAS-MHP" Use and maintenance manual example of MHP schematic diagram © Copyright by BIFFI Italia. All right reserved. page 43 Contents may change without notice...
  • Page 44 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 44 Contents may change without notice...
  • Page 45 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 45 Contents may change without notice...

  • Page 46: Lubrication Of Mechanism

    It’s also 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 47: Troubleshooting

    Leakages on the check Call BIFFI Italia S.r.l. valve of the hydraulic Customer Service control group © Copyright by BIFFI Italia. All right reserved. page 47 Contents may change without notice...

  • Page 48: Dismantling And Demolition

    (ex. metallic, and plastic materials, fluids etc.) and send them to differentiated waste collection sites, as provided for by the laws and provisions in force. © Copyright by BIFFI Italia. All right reserved. page 48 Contents may change without notice...

  • Page 49: Layouts And Sectional Drawings

    “ALGAS-MHP" Use and maintenance manual 8 LAYOUTS & SECTIONAL DRAWINGS 8.1 Parts-list for maintenance and replacing procedure Table 1: Scotch-yoke mechanism © Copyright by BIFFI Italia. All right reserved. page 49 Contents may change without notice...
  • Page 50 “ALGAS-MHP" Use and maintenance manual © Copyright by BIFFI Italia. All right reserved. page 50 Contents may change without notice...
  • Page 51 “ALGAS-MHP" Use and maintenance manual Table 2: pneumatic cylinder © Copyright by BIFFI Italia. All right reserved. page 51 Contents may change without notice...
  • Page 52 “ALGAS-MHP" Use and maintenance manual Table 3: Spring cartridge © Copyright by BIFFI Italia. All right reserved. page 52 Contents may change without notice...
  • Page 53 “ALGAS-MHP" Use and maintenance manual Table 4: assembly kit © Copyright by BIFFI Italia. All right reserved. page 53 Contents may change without notice...

  • Page 54: Date Report For Maintenance Operations

    Next maintenance operation date: ……… exec. by : ………… ……… exec. by : ………… Start-up date : ( in factory, on delivery ).……………………. .……………………. ( on plant ) © Copyright by BIFFI Italia. All right reserved. page 54 Contents may change without notice...

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