BIFFI ALGAS-QA Series Instruction And Operation Manual
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BIFFI ALGAS-QA Series Instruction And Operation Manual

Quick acting spring return pneumatic actuator
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4
21/03/18
3
18/04/16
2
29/03/13
1
20/12/05
0
05/05/99
Rev.
Date
ALGAS-QA
"QUICK ACTING" SPRING
RETURN PNEUMATIC
Instruction and Operation Manual
Updated Data-plate
Updated applicable
regulation (chapter 1.1.1)
General update
Updated document
Document release
Description
© Copyright by BIFFI Italia. All right reserved
Contents may change without notice
Instruction and Operation Manual
ACTUATOR
MAN 616
Ermanni
Ermanni
Ermanni
Ermanni
Lazzarini
Prepared
ALGAS-QA
Orefici
Vigliano
Orefici
Vigliano
Stoto
Vigliano
Stoto
Vigliano
Aliani
Ziveri
Checked
Approved
page 1

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Summary of Contents for BIFFI ALGAS-QA Series

  • Page 1 (chapter 1.1.1) Ermanni Stoto Vigliano 29/03/13 General update Ermanni Stoto Vigliano 20/12/05 Updated document Lazzarini Aliani Ziveri 05/05/99 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

    LAYOUTS & SECTIONAL DRAWINGS ------------------------------ 40 ------ 40 ARTS LIST FOR MAINTENANCE AND REPLACING PROCEDURE SPARE PARTS -------------------------------------------------------------- 45 DATE REPORT FOR MAINTENANCE OPERATIONS ---------- 46 © Copyright by BIFFI Italia. All right reserved page 2 Contents may change without notice...
  • Page 3 ALGAS-QA Instruction and Operation Manual 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. BIFFI Italia will not be responsible for any mistakes contained in it or for any damage either accidental or due to the use of this manual.

  • Page 4: General Warnings

    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

    Instruction and Operation Manual 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 Description of the actuator “Algas-QA”...
  • 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

    In case of long-term storage, the coupling parts (flange, drive sleeve, insert bush) must be coated with protective oil or grease. If possible, blank off the flange by a protection disk. © 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-QA Instruction and Operation Manual © Copyright by BIFFI Italia. All right reserved page 9 Contents may change without notice...
  • Page 10 ALGAS-QA Instruction and Operation Manual © Copyright by BIFFI Italia. All right reserved page 10 Contents may change without notice...
  • Page 11 ALGAS-QA Instruction and Operation 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: Valve Stem With Vertical Axis

    Lift ALGAS-QA actuators (pneumatic spring return) by means of the proper lifting points represented and indicated on actuator by sticking labels. Also refer to figures 2.2 for lifting points positions. Figure 2.3 © Copyright by BIFFI Italia. All right reserved page 13 Contents may change without notice...
  • Page 14 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 15 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 15 Contents may change without notice...

  • Page 16: Valve Stem With Horizontal Axis

    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 16 Contents may change without notice...
  • Page 17 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 17 Contents may change without notice...
  • Page 18 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 18 Contents may change without notice...

  • Page 19: Operation And Use

    Figure 3 shows the diagram angular stroke/time. By-pass action must be regulate to make more slowly the last part of cylinder stroke (see chapter 3.4.1) © Copyright by BIFFI Italia. All right reserved page 19 Contents may change without notice...

  • Page 20: Residual Risks

    (Picture 3.4.1). 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.
  • Page 21 ❑ operation time. After the adjustment is over screw the locknut ❑ The procedure is absolutely general. It is applicable both fail-to-open and Fail-to-close actuators. © Copyright by BIFFI Italia. All right reserved page 21 Contents may change without notice...

  • Page 22: By-Pass Adjustment

    If specific signals are built on by specific instrumentation please refet to dedicated documentation © Copyright by BIFFI Italia. All right reserved page 22 Contents may change without notice...

  • Page 23: Setting Of The Angular Stroke

    (fully open or closed valve), screw the stop screw by turning it clockwise until the valve reaches the right position. 4) Tighten the lock nut (2). © Copyright by BIFFI Italia. All right reserved page 23 Contents may change without notice...
  • Page 24 Instruction and Operation Manual Figures A PNEUMATIC WRENCH WRENCH CYLINDER SIZE (mm) (mm) PNEUMATIC WRENCH WRENCH CYLINDER SIZE (mm) (mm) 1000 1100 1200 1300 1450 © Copyright by BIFFI Italia. All right reserved page 24 Contents may change without notice...
  • Page 25 5) Verify that both travel stop screws protrude by the same distance from the cylinder end flange face (f) by means of a caliber (h): (see figure “D”): © Copyright by BIFFI Italia. All right reserved page 25 Contents may change without notice...
  • Page 26 3.5.3 Stop screw screwed on the end flange of spring container For the adjustment of the travel stop screw proceed as follows: (see figures B) © Copyright by BIFFI Italia. All right reserved page 26 Contents may change without notice...
  • Page 27 5) Tighten the lock nut, after having correctly placed the threaded seal washer “s” and “w”. To operate the adjustments refer to followings tables: SPRING WRENCH WRENCH CONTAINER SIZE (mm) (mm) 0100 0150 © Copyright by BIFFI Italia. All right reserved page 27 Contents may change without notice...

  • Page 28: Microswitches Calibration (Applicable To Biffi Limit Switch Box Model Only)

    Position the cover making sure the cam-carrier shaft grips with ❑ the index dragging shaft. Check that the cover and the index show the proper position of ❑ the valve (Picture 11). © Copyright by BIFFI Italia. All right reserved page 28 Contents may change without notice...
  • Page 29 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 29 Contents may change without notice...

  • Page 30: 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 30 Contents may change without notice...

  • Page 31: Start-Up

    6) Remove all rust and, in accordance with the applicable painting specifications, repair paint-coat that has been damaged during transport, storage or assembly. © Copyright by BIFFI Italia. All right reserved page 31 Contents may change without notice...

  • Page 32: Operational Tests And Inspections

    (remote control, local control, emergency controls, etc.), if this is allowed by the conditions of the plant. 2) Check that the signals to the remote control desk are correct. © Copyright by BIFFI Italia. All right reserved page 32 Contents may change without notice...

  • Page 33: Extraordinary Maintenance

    Remove the plug (26) from the cover of the adjustment screw ❑ (26). Record the length between end flange and stop-setting screw, as ❑ in figure A below. © Copyright by BIFFI Italia. All right reserved page 33 Contents may change without notice...

  • Page 34: Replacement Of Cylinder Seals

    Assemble the new O-ring into its groove and lubricate it with a protective oil or grease film. 1) Replace the O-ring (47) of the head flange (17). © Copyright by BIFFI Italia. All right reserved page 34 Contents may change without notice...
  • Page 35 © Copyright by BIFFI Italia. All right reserved page 35 Contents may change without notice...
  • Page 36 ALGAS-QA Instruction and Operation Manual © Copyright by BIFFI Italia. All right reserved page 36 Contents may change without notice...

  • Page 37: Lubrication Of Mechanism

    For this operation it is necessary to disassemble the mechanism cover. In larger actuators the lubrication can be performed through the inspection holes of the cover after removing the plugs. The following grease is used by BIFFI for standard working temperature and suggested for re-lubrication: AEROSHELL GREASE...

  • Page 38: Dismantling And Demolition

    Separate the parts composing the actuator according to their nature (e.g. metallic and plastic materials, fluids etc.) and send them to differentiated waste collection sites, as provided by the laws and provisions in force. © Copyright by BIFFI Italia. All right reserved page 38 Contents may change without notice...

  • Page 39: 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 39 Contents may change without notice...

  • Page 40: Layouts & Sectional Drawings

    ALGAS-QA Instruction and Operation Manual 7 LAYOUTS & SECTIONAL DRAWINGS Parts-list maintenance replacing procedure Table 1: Scotch-yoke mechanism © Copyright by BIFFI Italia. All right reserved page 40 Contents may change without notice...
  • Page 41 ALGAS-QA Instruction and Operation Manual Table 2: pneumatic cylinder © Copyright by BIFFI Italia. All right reserved page 41 Contents may change without notice...
  • Page 42 ALGAS-QA Instruction and Operation Manual Table 3: Spring cartridge © Copyright by BIFFI Italia. All right reserved page 42 Contents may change without notice...
  • Page 43 ALGAS-QA Instruction and Operation Manual Table 4: assembly kit © Copyright by BIFFI Italia. All right reserved page 43 Contents may change without notice...
  • Page 44 ALGAS-QA Instruction and Operation Manual Table 5 : Quick exhaust valve © Copyright by BIFFI Italia. All right reserved page 44 Contents may change without notice...

  • Page 45: Spare Parts

    Instruction and Operation Manual 8 SPARE PARTS 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 (Section 1.2) for any specific spare part for a specific actuator model.

  • Page 46: 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 46 Contents may change without notice...

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