PIETRO FIORENTINI DILOCK 106 Technical Manual Download Page 1 | Manualshive

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EN

TECHINICAL MANUAL

Slam Shut Valves

DILOCK 507/512/106

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Summary of Contents for DILOCK 106

Page 1: ...EN TECHINICAL MANUAL Slam Shut Valves DILOCK507 512 106...

Page 2: ...2 MT 237 EN ed 2015 Rev A EN DILOCK Basic version INLET PRESSURE CONTROL PRESSURE DILOCK 507 512 106...

Page 3: ...etail natural gas plants must show features complying with the law provisions or regulations in force in the place of installation or at least complying with the standards EN 12186 or EN 12279 The ins...

Page 4: ...r pressure decrease according to the calibration pressure 1 2 OPERATION OF THE SLAM SHUT VALVE Figure 1 Slam Shut Device LA The slam shut valve fig 1 tripping in case of minimum and maximum pressure i...

Page 5: ...ranges of the different available springs FEATURES OF THE SPRINGS FOR LA BP SLAM SHUT VALVES Code Colour De Lo d Calibration range mbar Tripping due to maximum pressure 64470112RO RED 34 43 2 2 30 49...

Page 6: ...damages during transport the inlet piping has been cleaned in order to remove any residual impurities such as welding scraps sand paint residues water etc The arrangement normally forecast is the one...

Page 7: ...7 MT 237 EN ed 2015 Rev A Figure 3 Overall dimensions...

Page 8: ...out 5 10 tube branch connections shall always be welded on the upper part of the piping itself and the hole on the piping shall not show any burrs or projections towards the internal side To avoid bre...

Page 9: ...ibrations in a very short time without disconnecting the sensing pipe during the periodic checks The peculiarity of this lies in the fact that during normal operation the pressure switch head receives...

Page 10: ...y PS maximum allowable pressure that can be born under safety conditions by the device body structure Pumax maximum operation pressure at device inlet DNi type of inlet connection to the device DNu ty...

Page 11: ...ot to create malfunctions 4 3 EXTERNAL TIGHTNESS AND CALIBRATIONS CHECK A For the slam shut devices connected to the downstream piping through the push three way switch valve proceed as follows Figure...

Page 12: ...am shut device is in closed position Open the inlet on off valve V1 Very slowly open the slam shut valve by pulling the proper bushing Partially open the relief valve 6 on the outlet piping Using the...

Page 13: ...turator gasket 526 deteriorated Replacement Obturator seat eroded or scratched Replacement Wrong release pressure Wrong calibration of the min and or max spring Perform the calibration again by acting...

Page 14: ...To have a set of tools as shown in table 6 4 For proper maintenance the recommended spare parts are unequivocally identified by tags indicating The SS layout drawing number of the equipment in which t...

Page 15: ...hat the pressure upstream and downstream of the same is zero DISASSEMBLING AND RE ASSEMBLING 6 3 DISASSEMBLING 1 Make sure that the slam shut device is in closed position 2 Disconnect the fittings bet...

Page 16: ...16 MT 237 EN ed 2015 Rev A 6 Remove the body cover springs 7 Extract the membrane assembly from the body 8 Remove the plug unscrew the nut and ring nut 9 Extract the shaft assembly from the top...

Page 17: ...Unscrew the valve seat from the body paying utmost care not to damage the sealing edges To re assemble the slam shut valve follow the procedure described for disassembly in reverse order Before reasse...

Page 18: ...nlet of the valve and using a foamy solution check the following tightness of the valve internal and external surfaces tightness of the slam shut valve 2 Operating very slowly pull the bushing of the...

Page 19: ......

Page 20: ...Via Enrico Fermi 8 10 36057 Arcugnano VI Tel 39 0444 968511 Fax 39 0444 960468 www fiorentini com R code generated on http qrcode littleidiot be...

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