Nibco Fire Protection Gate Valves Manuale Utente

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS CAUTION: Only qualified personnel should undertake the procedures outlined in this documen

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 10 7/8” bolts 24” wrench 1” bolts 36” wrench IRON VALVE BOLT TORQUE Before

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 2 1.0 GENERAL INFORMATION 1.1 SCOPE These instructions are furnished for us

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 3 D. SERVICE When installing valves for service in corrosive media, the NIBC

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 4 The wedge is raised and lowered in the waterway by rotating the handwheel whi

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 5 2.0 INSTALLATION 2.1 PRELIMINARY INFORMATION Gate valves should preferab

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 6 4.0 TROUBLESHOOTING Prior to doing any work on any NIBCO valve, it will be

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 7 Repacking of valves under pressure is not a recommended practice. Prior to pr

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 8 6.0 SPARE PARTS Normal spare parts to be maintained on hand are listed o

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 9 APPENDIX I Body to Bonnet Bolt Installation Procedure for NIBCO Cast Iron,