PIETRO FIORENTINI MT-188-E Скачать руководство пользователя страница 2 | Manualshive

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Technical Manual

MT 188-E

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SBC 187

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Содержание MT-188-E

Страница 1: ...SBC 187 MT 188 E ENGLISH SLAM SHUT VALVE TECHNICAL MANUAL INSTRUCTIONS FOR THE INSTALLATION COMMISSIONING AND MAINTENANCE ...

Страница 2: ...Technical Manual MT 188 E 1 SBC 187 ...

Страница 3: ...lly the paragraphs 6 2 7 5 2 7 7 and 9 3 of the standard EN 12186 and 6 2 7 4 7 6 and 9 3 of the standard EN 12279 must be observed The installation in compliance with such standards minimizes the risk of fire and the formation of potentially hazardous atmospheres The equipment is not provided with internal pressure limitation devices therefore it must be installed making sure that the operating p...

Страница 4: ... ACCESSORIES 7 3 1 PUSH THREE WAYSWITCHVALVE 7 4 0 COMMISSIONING 7 4 1 GENERAL 7 4 2 GASFEEDING CHECKOFTIGHTNESS CALIBRATIONS 8 4 3 CALIBRATIONCHECK 8 5 0 TROUBLESHOOTING 9 5 1 SLAM SHUTVALVESBC187 TAB2 9 6 0 MAINTENANCE 10 6 1 GENERAL 10 6 2 MAINTENANCEPROCEDURE 10 7 0 FINAL OPERATIONS 13 7 1 CHECKOFTIGHTNESSANDCALIBRATIONS 13 7 2 COMMISSIONING 13 INDEX ...

Страница 5: ...essure decrease External manual bypass by means of a hand wheel to obtain pressure balancing and ease the restoration of the device Manual tripping control by means of push button 1 2 OPERATION OF THE VALVE SBC 187 Fig 1 The slam shut device consists of an obturator A a control head B a lever mechanism system for the release C and a restoration system D controlled manually through the lever Fig 1 ...

Страница 6: ...wn 15 40 3 8 13 103MH 2700980 Blue 35 3 2700985 Brown 40 3 13 1 19 2700985 Brown 40 3 2702280 White Red 35 60 5 5 15 30 104M 2702454 Fuchsia 70 6 30 1 45 2700713 Green 15 40 2 3 1 6 3 104M 2700750 Black 40 2 5 3 1 8 2700985 Brown 40 3 8 1 18 2700985 Brown 15 40 3 18 30 104MH 2700980 Blue 35 3 2700985 Brown 40 3 30 1 41 2700985 Brown 40 3 2702280 White Red 35 60 5 5 30 60 2702454 Fuchsia 70 6 60 1 ...

Страница 7: ... downstream impulse circuit is connected to a straight section of the downstream piping having a length complying to Fig 5 therefore without any signal turbulence as well as that the maximum gas speedattheconnectionpointdoesnotexceed30m sec In order to avoid deposits of impurities and condensate in the pressure feeding connectionpiping provideforthefollowing a The piping shall always be positioned...

Страница 8: ...and the head of the safety device is restored automatically thus avoiding the on off switching of the device which may happen due to a sheer oversight if the three way valve is of the normal type with manual operation As a consequence the Push device is a second safety device which assures the non exclusion of the main safety device and allows its periodical check 4 0 COMMISSIONING 4 1 GENERAL Aft...

Страница 9: ...ny are closed and that the gas has such a temperature as not to create malfunctions 4 3 CALIBRATION CHECK Check and record the tripping of the slam shut device as follows A For the slam shut devices connected to the downstream piping through the push three way switch valve proceed as follows Fig 10 Fig 10 connect to the way C a controlled auxiliary pressure restore the slam shut device by means of...

Страница 10: ...n Replacement O ring pos 15 fig 13 of the obturator gasket pos 1 fig 12 worn Replacement Valve seat Pos 4 Fig 12 eroded or scratched Cleaning Replacement Wrong release pressure Wrong calibration of the min and or max pressure spring Recalibrate acting on the ring nuts Lever mechanisms subject to friction Replace the release device casing It is not possible to perform restoration The cause which le...

Страница 11: ... table 10 For a correct maintenance suggested spare parts are unmistakably identified by means of tags bearing the following information the SR layout drawing number of the equipment in which they can be used The position given on the SR layout drawing of the equipment It is suggested to replace all rubber parts for this purpose use the suitable spare part kit as highlighted in Fig 12 13 14 NB The...

Страница 12: ...Technical Manual MT 188 E 11 FIG 12 ...

Страница 13: ...Technical Manual MT 188 E 12 Position indicator Fig 13 position indicator ...

Страница 14: ...Technical Manual MT 188 E 13 Fig 14 Spring for minimum pressure 20 ...

Страница 15: ...bed for disassemblyinreverseorder Before reassembling the tightness elements O rings membranes etc it is necessarytochecktheirintegrityand ifnecessary replacethem Once again pay utmost care while handling the valve seat pos 4 Fig 12 in order nottodamagethesealingedges 7 0 FINAL OPERATIONS 7 1 CHECK OF TIGHTNESS AND CALIBRATIONS 1 Open very slowly the on off valve positioned upstream of the slam sh...

Страница 16: ...AINTAINING SBC 187 Combined wrench Adjustable spanner Double polygonal box spanner Wr 8 9 10 11 12 13 17 18 19 20 21 24 41 L 300 Wr 10 27 Hexagon Allen wrench Philips screwdriver Flat blade screwdriver Wr 2 3 4 5 6 8 10 6 5 x 100 Pliers for rings 19 40 ...

Страница 17: ...Pietro Fiorentini S p A via E Fermi 8 10 I 36057 Arcugnano VI Italy Phone 39 0444 968511 Fax 39 0444 960468 www fiorentini com MT188 E October 2008 ...

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