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GW Sprinkler M5 Manual

Low pressure water mist fire protection
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GW Model M5
Low Pressure Water Mist Fire Protection
Local Application Fire Protection System for
Category A machinery spaces and other spaces
with similar high-risk applications.
GW Sprinkler A/S
Kastanievej 15 DK5620 Glamsbjerg - Denmark
Tel: +45 64 722055
Fax: +45 64 722255
e-mail: sales.dep@gwsprinkler.com
GW Manual No. 846
1
M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387
Dated: 04-06-2014

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Summary of Contents for GW Sprinkler M5

  • Page 1 GW Sprinkler A/S Kastanievej 15 DK5620 Glamsbjerg - Denmark Tel: +45 64 722055 Fax: +45 64 722255 e-mail: sales.dep@gwsprinkler.com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 2: Table Of Contents

    4.3.5 Test of monitoring circuits 4.3.6 Functional tests of control unit 4.3.7 Spares which should be available on site GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 3 GW-DD1 QR heat detectors 14457 GW-DD1 QR-El / heat sprinkler detectors 140080 GW Control Boxes 14628 Heat Collector, Sprinkler Detector Guards etc. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 4: The System & The Applications

    Audible alarms may use a single tone. .6 Operating instructions for the system should be displayed at each operating position. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 5: Arrangement Of Nozzles And Water Supply

    Systems requiring an external power source need only be supplied by the main power source. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 6: Protection Of Applications In Category A Machinery Spaces, And Applications Of Similar Risk In Other Spaces

    The GW Model M5/M2 Full Flooding system is water based main fire extinguishing system for engine rooms. It may be combined with the GW Model M5 Local Application System, so that the two fire fighting systems share the same pump and nozzle pipe system.

  • Page 7: Low Water Pressure, Low Water Flows, Wide Installation Heights, Low Electric Power Requirements

    Low water pressures. Low water flows. Wide installation heights. Low electric power requirements. The GW Model M5 Water Mist Nozzle has a hydraulic k-value of 5 (l/min \bar). The GW Model M5 Local Application Fire Protection System controls fires with low-pressure water mist system. 90% of the water sprayed from the GW Model M5 nozzles is distributed in water droplets, which are smaller than 250 µm in...

  • Page 8: Water As Extinguishing Agent

    The GW Model M5 water mist nozzles distribute 90% of the total amount of water in droplet with diameters less than 0.250mm. (Dv90 = 250m). The unique distribution of drop size makes it possible to fight fires from 0.5m to 14.5m above the fire risk, with very small water densities.

  • Page 9: Nozzle Installation In Machinery Spaces

    2 Nozzle system and system installation requirements. 2.1 GW M5 Water Mist Nozzle design and nozzle installation: The GW model M5 Nozzle is a key component in the GW model M5 Local Application Systems. Key parameters Specific for GW Model M5 Nozzles Nozzle connection ½"...

  • Page 10: Obstructions Between Applications And Pendent Installed Nozzles

    20, when seen from a nozzle, or when seen from the fire risk. (Fig. B1 & B2) If the obstruction is located between two nozzles the shielded angle from a single nozzle may be 40. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 11: Additional Nozzles

    Water Mist may also be aimed to spray directly on to the application surface. For such installations the maximum distance from GW Model M5 nozzle to the application surface is 3m. The spray angle may be calculated to be 90, and the maximum spray diameter to be 3m. (Fig. C2).

  • Page 12: Power Supplies

    GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 13: System Control Valve Unit

    GW Control Units in general: GW Model M5 Local Application Systems are controlled with the GW Control Units, which control the water access from the wet pressurised feeding pipes to the dry nozzle zone pipes of the systems. (Fig. E2) The GW Control Units provide the control, activation, tests, drain and monitoring features, as required by The International Maritime Organisation in their circular MSC Circ.

  • Page 14: Sizes And Hydraulic Connections

    Brass/Stainless steel Natural Table 5: Standard GW Control Unit, Components and materials. * Solenoid activation and filter is an option. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 15 The switch should automatically return to neutral. Activation switches should be protected against accidental activation. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 16: The Performance Of Gw Control Unit

    Water, which flows into the nozzle pipes, passes the Y-strainer in the Control Unit, which catches the impurities that the water contains, so that the nozzles do not block. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 17: Closing And Returning The Control Unit Back To Standby Model After Activation

    GW Sprinkler recommends that pipes, which have been exposed to seawater, be firmly rinsed with fresh- water. GW Sprinkler does also recommend that filters cleaned after the control unit has been activated.

  • Page 18: Hydraulic Installation

    - After the test the Control Unit should be left in standby mode. (See table 7) Continue to test the other Control Units in the Local Application Installation. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 19: Spares Which Should Be Available On Site

    GW Sprinkler recommends a service log for each system installed. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 20: Checklist For Faults

    The control valve leaks because of a ruptured gasket. Fig. 10: Faults and cures for control units. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

  • Page 21: Hydraulic Activation System

    GW Manual Release Control Boxes: GW Sprinkler offers control boxes where up to four manual released valves is assembled in one cabinet. The cabinet is prepared for instructions of how to operate systems, and which activation valve is for what application.

  • Page 22: Electrical Methods Of Activation

    Impulse Solenoid Valve locks in open position, when activated, until electric impulse orders the valve to close. GW Sprinkler offers a ½" Impulse Solenoid Valve for 24 V DC, 8W. The solenoid valve requires wire with three leads and earth.

  • Page 23: Ordering Gw Control Units

    Table 13: Standard Control Unit Sizes, Ordering numbers for control Unit Sizes for Units to be primed with fresh water Only. Control Units designed for priming with seawater should be specified when ordered from GW Sprinkler A/S. Control Unit Trim Performance / special components GW Part No.

  • Page 24: Ordering Components For Hydraulic Activation Systems

    – see 1.2.5.2 However, for the activation of valves/control units fitted with a hydraulic pilot line, GW Sprinkler offers an electrically activated heat detector, which can be triggered via a detection system according to 1.2.5.2.

  • Page 25: Manual Activation Switches

    Activation Switch Cabinet, with five switches GW Part No.: BE26743 Table 18: Manual Switch Cabinet. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 26 Control Unit (Fig. E5-B), and with activation from release of pilot water from Impulse Solenoid valve on the Control Unit (Fig. E5-C). GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 27 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 28 Parallel ( TOP DOWN VIEW ) GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 29 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 30 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 31 SW1: Outlet ball valve SW2: Ball valve on pilot chamber SW3: Drain ball valve SW4: Inlet ball valve PSW: Pressure switch GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 32 Trim used for electric release. Solenoid BE26692 Valve impulse type included. (Fig. E5) Trim is prepared for hydraulic Activation Trim. By-pass Valve not included. GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 33 D: Sprinkler detector Number: Temp: Type: Part No: E: Spares Number: Type: Size: Part No: E: Spares Number: Type: Size: Part No: GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 34 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK TEL.: +45 64 72 20 55 (IMPULS VALVE) FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 35 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK TEL.: +45 64 72 20 55 (IMPULS VALVE) FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 36 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK MODEL 0166 TEL.: +45 64 72 20 55 FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 37 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK TEL.: +45 64 72 20 55 M-SERIES NOZZLE FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler.com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 38 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK TEL.: +45 64 72 20 55 M-SERIES NOZZLE FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler.com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 39 Basic Valve TEL.: +45 64 72 20 55 FAX: +45 64 72 22 55 Spare Part List e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 40 Basic Valve TEL.: +45 64 72 20 55 FAX: +45 64 72 22 55 Spare Part List e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 41 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 42 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 43 KASTANIEVEJ 15 – DK5620 GLAMSBJERG DENMARK controlled control valve TEL.: +45 64 72 20 55 FAX: +45 64 72 22 55 e-mail: sales.dep@gwsprinkler-com GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...
  • Page 44 GW Manual No. 846 M5 / Local Application Fire Protection of Category A Engine Rooms– IMO / MSC.1/Circ. 1387 Dated: 04-06-2014...

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