Related Manuals for PIETRO FIORENTINI SBC 187
Summary of Contents for PIETRO FIORENTINI SBC 187
- Page 1 MT-188-E ENGLISH SLAM-SHUT VALVE TECHNICAL MANUAL INSTRUCTIONS FOR THE INSTALLATION, COMMISSIONING AND MAINTENANCE...
- Page 2 Technical Manual MT 188-E SBC 187...
- Page 3 Directive 97/23/EC (PED). damages during normal transport, storage, and related handling. The slam-shut valve SBC 187 with pressure switch tripping in case of Therefore, the equipment and spare parts must be kept in their maximum pressure is classified as safety accessory pursuant to the...
- Page 4 Technical Manual MT 188-E - INDEX - INTRODUCTION TROUBLESHOOTING MAIN FEATURES SLAM-SHUT VALVE SBC 187 (TAB 2) OPERATION OF THE VALVE SBC 187 SETTING SPRINGS MAINTENANCE INSTALLATION GENERAL MAINTENANCE PROCEDURE GENERAL ACCESSORIES FINAL OPERATIONS "PUSH" THREE-WAY SWITCH VALVE CHECK OF TIGHTNESS AND CALIBRATIONS...
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Page 5: Main Features
SBC 187. Moreover, it is deemed suitable to provide the reader with a brief description of the main features of the valve and its accessories. MAIN FEATURES This is a device immediately blocking the gas flow, either if pressure inside a piping reaches the preset value for its tripping due to any fault or if it is enabled manually. - Page 6 Technical Manual MT 188-E Tab. 1 SETTING SPRINGS Spring characteristics Setting range (bar) Pressure switch Code Color mod. 2701530 Yellow 2 ÷ 4 2701790 Yellow/Black 4.1 ÷ 7.5 103M -103MH 2702280 White/Red 7.6 ÷ 15 2702454 Fuchsia 15.1 ÷ 22 2700464 Orange 0.2 ÷...
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Page 7: Installation
The most frequent types of installation on a gas pressure reduction line of the valve accessible for performing the following maintenance operations; SBC 187 are shown in Fig. 6 and Fig. 7. the upstream and downstream piping are on the same level and are able to support the valve weight;... - Page 8 Technical Manual MT 188-E This valve is usually installed in the impulse line of safety devices 3.0 ACCESSORIES against pressure increase and/or decrease (SAV or SBV) in order to be able to verify their calibrations in a very short time without disconnecting the impulse pipe during the periodic checks.
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Page 9: Calibration Check
Technical Manual MT 188-E Wdsu = tripping range due to slam-shut valve pressure decrease, fig. which can be obtained by using the setting spring mounted during final testing. Wdu = tripping range due to slam-shut valve pressure decrease, which can be obtained by using the setting springs listed in the tables. GAS FEEDING, CHECK OF EXTERNAL TIGHTNESS AND CALIBRATIONS Pressure feeding to the equipment shall be performed very slowly. -
Page 10: Troubleshooting
Leak from the The tampering of the equipment due to the use of not qualified slam-shut O-ring (pos. 15 fig. 13) personnel relieves Pietro Fiorentini SpA from any liability whatsoever. obturator of the obturator gasket Replacement Therefore, you are kindly invited to have your personnel entrusted with (pos. -
Page 11: Maintenance
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 use of not original parts relieves Pietro Fiorentini S.p.A. from any responsibility. The depressurization procedure shall occur paying attention to discharge the drains into a safe area;... - Page 12 Technical Manual MT 188-E FIG. 12...
- Page 13 Technical Manual MT 188-E position indicator Position indicator Fig. 13...
- Page 14 Technical Manual MT 188-E Spring for minimum pressure Fig. 14...
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Page 15: Final Operations
Technical Manual MT 188-E DISASSEMBLY Once again, pay utmost care while handling the valve seat pos. 4 (Fig. 12) in order not to damage the sealing edges. 1) Make sure that the blocking device is in closed position. 7.0 FINAL OPERATIONS 2) Disconnect the connection pipe between the downstream pressure connection point and the control head of the slam-shut valve pressure switch. - Page 16 Technical Manual MT 185-E Tab. 10 WRENCHES FOR MAINTAINING SBC 187 Adjustable Double polygonal Combined wrench spanner box spanner Wr. 8-9-10-11-12-13- Wr. 10--27 L=300 17-18-19-20-21--24-41 Hexagon Allen Philips Flat blade wrench screwdriver screwdriver 6.5 x 100. Wr. 2-3-4-5-6-8-10 Pliers for rings...
- Page 17 MT188-E October 2008 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...