2018-00234 - alarm system - Laserfiche WebLink

Home Browse Search

tqcc., Fire & Building Products Technical Services: Tel: (800) 381-9312/ Fax: (800)791-5500 Model BFV-N Butterfly Valve Grooved End 2-1/2 Inch - 10 Inch (DN65 - DN250) General Technical Description Data I The Model BFV-N Grooved End But- Model '� terfly Valves(Ref. Figure 1)are indicat- BFV-N ing type valves designed for use in fire Sizes:ANSI Inches/DN t protection systems where a visual in- 2-1/2 (DN65), 3(DN80), dication is required as to whether the 4(DN100), 5 (DN125), valve is open or closed.They are used, 6(DN150), 8 (DN200), 10 (DN250) for example, as system, sectional, and pump water control valves. They have The 2-1/2 through 10 inch (DN65 - ' cut groove inlet and outlet connections DN250) Model BFV-N Grooved End that are suitable for use with grooved Butterfly Valves are UL and C-UL List- ) end pipe couplings that are listed and ed and FM Approved. approved for fire protection systems. In addition, the Model BFV-N Grooved For applications requiring supervision End Butterfly Valves are listed by the of the open position of the valve, the California State Fire Marshall under Gear Operators for the Model BFV-N Listing No.7770-1670:100. Butterfly Valves are provided with two sets of factory installed internal All laboratory listings and approvals are switches each having SPDT contacts. for indoor and outdoor use. Friction Loss The supervisory switches transfer their Maximum Working Pressure The approximate friction loss, based electrical contacts when there is move- • 2-1/2-8 Inch (DN65- DN200): on the Hazen Williams formula and ex ment from the valve's normal open po- 300 psi (20,7)bar pressed in equivalent length of pipe sition during the first two revolutions of with C= 120, is as follows. The data is handwheel.ringt • 10 Inch (DN250): based on friction loss information col- the175 psi (12,0 bar) lected at a typical flow rate of 15 feet WARNINGS Materials of Construction: per second. The Model BFV-N Grooved End But- Body • 6.9 feet of 2-1/2 inch Sch. 40 pipe terfly Valves described herein must be Ductile iron conforming to ASTM A-395 for the 2-1/2 inch valve. installed and maintained in compliance Body Coating • 8.7 feet of 3 inch Sch. 40 pipe for with this document, as well as with the Polyamide the 3 inch valve. applicable standards of the National Disc • 4.5 feet of 4 inch Sch. 40 pipe for Fire Protection Association, in addition Ductile iron conforming to ASTM A-395 the 4 inch valve. to the standards of any other authori Disc Seal • 6.6 feet of 5 inch Sch. 40 pipe for ties having jurisdiction. Failure to do Grade EPDM"E"encapsulated rubber the 5 inch valve. so may impair the performance of conforming to ASTM D-2000 • 11.1 feet of 6 inch Sch. 40 pipe for these devices. Upper&Lower Stem the 6 inch valve. Theowner is responsible for maintain-their re protection system and de- Type 416 Stainless Steel conforming • 10.2 feet of 8 inch Sch. 30 pipe for g to ASTM 582 the 8 inch valve. vices in proper operating condition. The installing contractor or sprinkler Lower Plug • 12.1 feet of 10 inch Sch.30 pipe for manufacturer should be contacted PVC the 10 inch valve. with any questions. Operator Gear operator with iron housing Page 1 of 4 MAY, 2008 TFP1510