CALCULATION OF BOWL HEAD OR DISCHARGE HEAD - Xylem Inc.
FIRE PUMP SYSTEMS General Information and Engineering Data Vertical Turbine Fire Pump FP 2.4 AC Fire Pump Systems February, 1996 Supersedes 5/95 issue CALCULATION OF BOWL HEAD OR DISCHARGE HEAD Pressure Gauge hD (Discharge Head) hL (LIFT) Pump O.A.L. Sump Depth For vertical turbine pumps, discharge head equals bowl head minus lift and internal pump loss. It can be shown as: hD hB - hL - hP Where hD Discharge head. Pressure gauge reading in PSI multiplied by 2.31 for fresh cool water. hB Bowl head. Actual head in feet developed by the bowl assembly. hL Lift. Elevation difference in feet between the pumping water level and the pressure gauge. hP Internal pump loss. Pump column loss plus discharge head loss in feet. hp (Internal Pump Loss) Setting Pumping Water Level hB (Bowl Head) Conversely, bowl head equals discharge head plus lift and internal pump loss. hB hD hL hP NOTES: 1. Test curves are plotted as bowl head (hB). Allowances must be made for lift and internal pump loss when comparing test curves to field performances.
FP 2.4 Page 2 AC Fire Pump Systems August 2002 PSI Pump Size Approval Flow Rate 49-139 140-206 54-130 131-256 71-150 10WALC 10WALC 11CLC 11CLC 11CHC 250 250 500 500 750 DISCHARGE HEAD DESIGN DATA Discharge Flange Rating Head Material Max Working Pressure (PSIG) Minimum Submergence Above Bell Shaft O.D. FIRE PUMP SYSTEMS General Information and Engineering Data Vertical Turbine Fire Pump Minimum Maximum Packing: No. Rings/Size Square No. of Vanes 125 250 125 250 125 Cast Iron Cast Iron Cast Iron Cast Iron Cast Iron 175 psi 400 psi 175 psi 400 psi 175 psi 17.3 17.3 23.0 23.0 29.0 STUFFING BOX DATA 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.19 1.19 5/.38 5/.38 5/.38 5/.38 5/.38 IMPELLER DESIGN DATA 5 5 5 5 8 Inlet Area 8.60 8.60 15.60 15.60 15.60 Maximum Diameter 7.31 7.31 6.63 6.63 7.13 Minimum Diameter 6.50 6.50 8.13 8.13 8.13 Maximum Sphere 0.45 0.45 0.68 0.68 0.68 WR2 for Max. Dia. (Lbs-Ft2) Per Stage 0.58 0.58 0.89 0.89 0.89 .015 in. .001 .015 in. .001 .016 in. .002 .016 in. .002 .016 in. .002 3/7 7/9 3/5 5/9 3/5 Wear Ring Clearance-Diametral No. of Stages Min/Max Shaft Diameter (Bowl) Maximum Shaft Span (Brg. to Brg.) All dimensions are in inches SHAFT AND BEARING DATA 1.50 1.50 1.69 1.69 1.69 120 120 120 120 120
FIRE PUMP SYSTEMS General Information and Engineering Data Vertical Turbine Fire Pump FP 2.4 AC Fire Pump Systems Page 3 August 2002 PSI 151-323 85-140 141-352 50-145 146-295 Pump Size 11CHC 12CHC 12CHC 14RJHC 14RJHC 750 1000 1000 1500 1500 Approval Flow Rate DISCHARGE HEAD DESIGN DATA Discharge Flange Rating Head Material Max Working Pressure (PSIG) Minimum Submergence Above Bell Shaft O.D. Minimum Maximum Packing: No. Rings/Size Square No. of Vanes 250 125 250 125 250 Cast Iron Cast Iron Cast Iron Cast Iron Cast Iron 400 psi 175 psi 400 psi 175 psi 400 psi 29.0 34.0 34.0 42.0 42.0 STUFFING BOX DATA 1.19 1.19 1.19 1.19 1.50 1.50 1.19 1.50 1.50 1.93 5/.38 5/.38 5/.38 5/.38 5/.38 IMPELLER DESIGN DATA 8 8 8 8 8 Inlet Area 15.60 20.43 20.43 30.24 30.24 Maximum Diameter 7.13 7.75 7.75 7.75 7.75 Minimum Diameter 8.13 8.69 8.69 9.82 9.82 Maximum Sphere 0.68 0.73 0.73 0.98 0.98 WR2 for Max. Dia. (Lbs-Ft2) Per Stage 0.89 1.65 1.65 3.12 3.12 Wear Ring Clearance-Diametral No. of Stages Min/Max Shaft Diameter (Bowl) Maximum Shaft Span (Brg. to Brg.) All dimensions are in inches .016 in. .002 .016 in. .002 .016 in. .002 .016 in. .002 .016 in. .002 5/10 3/5 SHAFT AND BEARING DATA 5/10 2/4 4/7 1.69 1.69 1.69 1.94 1.94 120 120 120 120 120
FP 2.4 Page 4 AC Fire Pump Systems August 2002 PSI Pump Size Approval Flow Rate 55-135 136-257 77-145 146-186 101-147 14RHHC 14RHHC 16DMC 16DMC 18DMC 2000 2000 2500 2500 3000 DISCHARGE HEAD DESIGN DATA Discharge Flange Rating Head Material Max Working Pressure (PSIG) Minimum Submergence Above Bell Shaft O.D. FIRE PUMP SYSTEMS General Information and Engineering Data Vertical Turbine Fire Pump Minimum Maximum Packing: No. Rings/Size Square No. of Vanes 125 250 125 250 125 Cast Iron Cast Iron Cast Iron Cast Iron Cast Iron 175 psi 400 psi 175 psi 400 psi 175 psi 50.0 50.0 50.0 50.0 87.0 STUFFING BOX DATA 1.18 1.50 1.50 1.68 1.68 1.50 1.93 1.68 1.68 1.93 5/.38 5/.38 5/.38 5/.38 5/.38 IMPELLER DESIGN DATA 7 7 7 7 7 Inlet Area 36.06 36.06 40.37 40.37 49.00 Maximum Diameter 8.00 8.00 9.31 9.31 10.63 Minimum Diameter 9.88 9.88 11.63 11.63 12.75 Maximum Sphere 1.18 1.18 0.72 0.72 0.75 WR2 for Max. Dia. (Lbs-Ft2) Per Stage 5.05 5.05 9.65 9.65 13.3 Wear Ring Clearance-Diametral No. of Stages Min/Max Shaft Diameter (Bowl) Maximum Shaft Span (Brg. to Brg.) All dimensions are in inches .016 in. .002 .016 in. .002 .020 in. .002 .020 in. .002 .020 in. .002 2/4 4/6 SHAFT AND BEARING DATA 2/3 3/3 2/2 2.19 2.19 2.44 2.44 2.69 120 120 120 120 120
FIRE PUMP SYSTEMS General Information and Engineering Data Vertical Turbine Fire Pump FP 2.4 AC Fire Pump Systems Page 5 August 2002 PSI 94-141 105-141 56-129 55-126 Pump Size 18DMC 18DHC 20EHC 20EHC 3500 4000 4500 5000 Approval Flow Rate DISCHARGE HEAD DESIGN DATA Discharge Flange Rating Head Material Max Working Pressure (PSIG) Minimum Submergence Above Bell Shaft O.D. 125 125 150 150 Cast Iron Cast Iron Fab. Steel Fab. Steel 175 psi 175 psi 285 psi 285 psi 87.0 221.0 71.0 71.0 STUFFING BOX DATA Minimum Maximum Packing: No. Rings/Size Square 1.68 1.68 1.68 1.68 1.93 1.93 1.93 1.93 5/.38 5/.38 5/.38 5/.38 IMPELLER DESIGN DATA No. of Vanes 7 7 6 6 Inlet Area 49.00 49.00 80.70 80.70 Maximum Diameter 10.63 10.63 11.62 11.62 Minimum Diameter 12.75 12.69 13.31 13.31 Maximum Sphere 0.75 0.75 1.75 1.75 WR2 for Max. Dia. (Lbs-Ft2) Per Stage 13.3 13.3 17.16 17.16 Wear Ring Clearance-Diametral .020 in. .002 .020 in. .002 .021 in. .003 .021 in. .003 No. of Stages Min/Max Shaft Diameter (Bowl) 2/2 SHAFT AND BEARING DATA Maximum Shaft Span (Brg. to Brg.) All dimensions are in inches 2/2 1/2 1/2 2.69 2.69 2.44 2.44 120 120 120 120
FP 2.4 Page 6 FIRE PUMP SYSTEMS AC Fire Pump Systems Lineshaft Turbine – Water Lube – Cast Head – Threaded Column – Motor/Gear Driver VHS August 2002 Discharge Head Assembly Item Description 608 604 730 622 618 600 616 617 735 739 779 620 621 637 Headshaft Adjusting Nut GIB Key Slinger Stuffing Box Split Gland Discharge Head Stuffing Box Stuffing Box Bearing Stuffing Box Stud Nut Stuffing Box Stud Stuffing Box Gasket Packing Lantern Ring Hanger Flange Material Code Material Description 2227 2130 2242 5121 1193 1003 1003 1109 2229 2229 5136 5026 6359 1003 SST 416 Brass Steel Rubber Sbr Aluminum Bronze Cast Iron Cast Iron Bronze SST 316 SST 316 Rubber Sbr Carbon Non-Asbestos Teflon (PTFE) Cast Iron Material Code Material Description 6501 6501 2227 5121 2265 1102 Black Pipe Black Pipe SST 416 Rubber Sbr SST 416 Bronze Material Code Material Description 2227 1003 1109 6911 1109 1102 2242 1117 2298 1109 1003 1109 1102 5302 1046 SST 416 Cast Iron Bronze Coated Cast Iron Bronze Bronze Steel Aluminum Bronze Grade 8 Bronze Cast Iron Bronze Bronze Rubber Nbr Mal Iron Column & Lineshaft Assembly Item Description 642 645 646 656 649 652 Column Pipe Column Coupling Lineshaft Lineshaft Bearing Lineshaft Coupling Bearing Retainer Bowl Assembly Item Description 660 661 791 670 672 673 677 680 760 692 688 690 698 743 747 Bowl Shaft Discharge Bowl Discharge Bearing Intermediate Bowl Inter Bowl Bearing Impeller Impeller Taper Lock Wear Rings Hex Bolt Sand Collar Suction Bell Suction Bearing Suction Strainer O-Ring Plug
FIRE PUMP SYSTEMS Lineshaft Turbine – Water Lube – Fab Head – Flanged Column – Motor/Gear Driver VHS AC Fire Pump Systems Description 608 604 730 622 618 600 616 617 739 735 779 620 621 Headshaft Adjusting Nut GIB Key Slinger Stuffing Box Split Gland Discharge Head Stuffing Box Stuffing Box Bearing Stuffing Box Stud Stuffing Box Stud Nut Stuffing Box Gasket Packing Lantern Ring Material Code Material Description 2227 2130 2242 5121 1193 9645 1003 1109 2229 2229 5136 5026 6359 SST 416 Brass Steel Rubber Sbr Aluminum Bronze Fab Steel Cast Iron Bronze SST 316 SST 316 Rubber Sbr Carbon Non-Asbestos Teflon (PTFE) Material Code Material Description 9645 2227 6108 2265 Fab Steel Pipe SST 416 Steel/Rubber Sbr SST 416 Material Code Material Description 2227 5853 1109 1102 1117 2298 1109 1003 1109 1102 2217 5302 1046 SST 416 Coated Cast Iron Bronze Bronze Aluminum Bronze Grade 8 Bronze Cast Iron Bronze Bronze SST 316 Rubber Nbr Mal Iron Column & Lineshaft Assembly Item Description 642 646 656 649 Column Pipe Lineshaft Lineshaft Bearing Lineshaft Coupling Bowl Assembly Item Description 660 670 672 673 680 760 692 688 690 698 725 743 747 Bowl Shaft Intermediate Bowl Inter Bowl Bearing Keyed Impeller Wear Ring Hex Bolt Sand Collar Suction Bell Suction Bearing Suction Strainer Thrust Ring O-Ring Plug Page 7 August 2002 Discharge Head Assembly Item FP 2.4
For vertical turbine pumps, discharge head equals bowl head minus lift and internal pump loss. It can be shown as: hD hB - hL - hP Where hD Discharge head. Pressure gauge reading in PSI multiplied by 2.31 for fresh cool water. hB Bowl head. Actual head in feet developed by the bowl assembly. hL Lift. Elevation difference in feet between .
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addition to those in the Blood Bowl rulebook in order to play Blood Bowl Sevens. Except where noted below, players should use the rules in the Blood Bowl Handbook and latest addition of the Blood Bowl Annual. SETTING UP THE GAME Each coach may set up 7 players between their End Zone and th
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FIRE TOPPER Fire Bowl User Manual Home » FIRE TOPPER » FIRE TOPPER Fire Bowl User Manual Contents [ hide 1 FIRE TOPPER Fire Bowl 2 Setting Up Your Fire Topper Fire Bowl 2.1 Set-Up 3 Placement and Location 3.1 Liquid Propane Tank 4 Using your Fire Topper Fire Bowl - For your safety, read before lighting. 5 Cleaning, Maintenance, Storage 6 .
for design, development and practical use of bowl-type feeders. 2. Equivalent Model of Bowl-Type Vibratory Feeder The bowl-type vibratory feeder is made up of four main parts, that is, bowl, springs, base and exciter. The bowl is usually supported on three or four sets of incIinded leaf
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monitors, and flexible seating to accommodate small group, large group, and individual work. The classroom has a maximum capacity of 36 students. Figure 1 shows the classroom before and after redesign, and Figure 2 shows three views of the new ALC. Participants Faculty and students who had taught or taken at least one
