MT-302-I
ENGLISH
SAFETY
VALVE VS/AM 58
TECHNICAL MANUAL
INSTRUCTIONS FOR INSTALLATION,
COMMISSIONING AND
MAINTENANCE
TECHNICAL M
Page 1: ...MT 302 I ENGLISH SAFETY VALVE VS AM 58 TECHNICAL MANUAL INSTRUCTIONS FOR INSTALLATION COMMISSIONING AND MAINTENANCE TECHNICAL M...
Page 2: ...e at the installation site or at least in accordance with EN 12186 or EN 12279 in particular paragraphs 6 2 7 5 2 7 7 and 9 3 of EN 12186 and 6 2 7 4 7 6 and 9 3 of EN 12279 must be adhered to Install...
Page 3: ...UIREMENTS _________________ 5 2 3 SPECIAL REQUIREMENTS __________________ 5 2 3 REACTION FORCES DUE TO DISCHARGE ______ 5 2 5 CONDITIONS OF USE ______________________6 2 6 INSTALLATION DIRECTLY ON LIN...
Page 4: ...Technical Manual MT 302 I 3 Figure 1...
Page 5: ...on the comparison between the thrust on the piston 4 deriving from the gas pressure to control and the thrust deriving from the setting spring 21 The weight of the mobile unit and the static and dyna...
Page 6: ...sure and the fluid contained in the system before carrying out any inspection and maintenance activities The pilot of the valve is sealed after being tested and calibrated the sealing is done in three...
Page 7: ...ss section Set press Calibration value Fluid Fluid Overpress Overpressure to which the declared Kd value refers Kdr declassified discharge coefficient In particular it draws attention to the following...
Page 8: ...PRESSURIZATION After installation check that the connections to the line have been carried out properly and that any relief and discharge valves on the system are closed and that the inlet outlet shu...
Page 9: ...fluid The state of cleanliness and conservation of the piping making up the system in general after the first start up of the plants they require more frequent maintenance for the precarious state of...
Page 10: ...the disassembly phase to correctly match all the connections and following the procedures described in the preceding paragraphs in reverse order 1 Reassemble the obturator guide obturator unit 2 Refi...
Page 11: ...ation of the valve When performing maintenance it is recommended to lubricate the moving parts obturator and seals with silicone grease 6 0 STORAGE The VS AM 58 valves do not require special precautio...
Page 12: ...Technical Manual MT 302 I 11 Type of valve Serial number Year of manufacture Type of fluid used Number of article Quantity...
Page 13: ...Technical Manual MT 226 I 12 Figure 7...
Page 14: ...I 13 via Rosellini 1 I 20124 Milan Italy Tel 39 02 696 14 21 Fax 39 02 688 04 57 Pietro Fiorentini S p A via E Fermi 8 10 I 36057 Arcugnano VI Italy Tel 39 0444 968 511 Fax 39 0444 960 468 www fioren...
