IMI STI BV Instruction Manual

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BV - BIG VOLUME BOOSTER
INSTRUCTION MANUAL 2071

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Summary of Contents for IMI STI BV

  • Page 1 BV - BIG VOLUME BOOSTER INSTRUCTION MANUAL 2071...
  • Page 2 STI S.r.l has taken every care in collecting and verifying the documentation contained in this Instruction Manual. The information herein contained are reserved property of STI S.r.l. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 3: Table Of Contents

    UBRICATION PARTS LIST GENERAL ASSEMBLY ....................18 ..........................18 ASSEMBLY TROUBLESHOOTING ........................19 SPARE PARTS ..........................19 DECOMMISSIONING ........................20 ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 4 ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 5: General Information

    24040 Levate (BG) Italy Tel. +39 035 2928.2 Fax +39 035 2928.247 imisti.sales@imi-critical.com 1.4 Terms and conditions STI S.r.l. guarantees each single product to be free from defects and to conform to current goods specifications. The warranty period is one year from the date of installation by the first user, or eighteen months from the date of shipment to the first user, whichever occurs first.
  • Page 6: Applicable Standards And Directives

    (with protective wear wear a helmet. protect the protect your the possible clothing. protective eyes. hearing. supplementary footwear. signboard) ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 7: Device Description

    BYPASS VALVE or VALVE SHUTTER Figure 1 – Big Volume Booster BV ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 8: Technical Data

    It is forbidden to modify the information and the marks without previous written authorization by STI S.r.l. Figure 2 – label ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 9: Installation

    5.6 and 5.7. 5.5 Documents and dimensional drawings Pneumatic diagrams, wiring diagrams and dimensional drawings are furnished with document accompanying the actuator. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 10: Installation

    Make the connections according to the operating diagram. Check the absence of leakages from pneumatic connections. If necessary, tighten the nuts of the pipe-fittings. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 11: Disassembling

    BV. Cylinder chambers, pipe fittings and accessories must not be under pressure. The staff must be qualified for the required operation. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 12: Operation And Use

    In this case the upper shutter generates the greatest flow section available because the piston reaches its upper stroke limit. This case is called “on-off mode” (figure 9). ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 13 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter Figure 4 – charge setup: stand-by mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 14 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter PRESSURE LINE Figure 5 – charge setup: modulating mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 15 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter PRESSURE LINE Figure 6 - charge setup: on-off mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 16 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter Figure 7 – discharge setup: stand-by mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 17 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter ENVIRONMENT Figure 8 – discharge setup: modulating mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 18 Valve shutter PILOT Piston Upper shutter ACTUATOR Lower shutter ENVIRONMENT Figure 9 - discharge setup: on-off mode ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 19: Intended Use

    It is severely forbidden to use the BV under conditions other than those provided on the label. The label fastened on the BV contains the main BV operating conditions for the specified application. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 20: Residual Risks

    ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 21: Maintenance

    Worked penetration (1/10mm): 295 ASTM D-2265 Dropping Point: 200°C ASTM D-2265 Dropping Point: 260°C Important BV does not need lubrication during his life. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 22: Parts List General Assembly

    Flange bearing Sealing ring OR 3125 Sealing ring OR 2081 Stop ring Smalley spring Smalley spring Figure 10 – BV assembly ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 23: Troubleshooting

    Repairs must not be carried out. When needed send back to STI S.r.l the device for any repairing and final test. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 24: Decommissioning

    The demolition of BV parts should be made from specialized personnel. Important In all cases check local authority regulation before disposal. ____________________________________________________________________________________ STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com Manual 2071, rev.07 02/2019 – BV...
  • Page 25 IMI STI - Headquarters Via Dei Caravaggi 15 24040 Levate (BG) Italy Tel. +39 035 2928.2 Fax +39 035 2928.247 IMI STI – Quarter Turn Division Via San Francesco 18 29017 Fiorenzuola d’Arda (PC) Italy Tel. +39 035 2928.2 Fax +39 0523 1715.295...

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