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CAPACITY AND FLOW DATA
TABLE 3. RECOVERY CAPACITIES.
TABLE 4. PUMPING PERFORMANCE GUIDE.
VB MODELS - FLOW, HEAD LOSS AND TEMPERATURE RISE
20F° (11°C) t 30F° (17°C) t 40F° (22°C) t Maximum Flow Rate Minimum Flow Rate
MODEL GPM LPH P FT P m GPM LPH P FT P m GPM LPH P FT P m GPM LPH P FT P m T °F T °C GPM LPH P FT P m T °F T °C
VB-500 42 159 1.8 0.5 28 106 1.3 0.4 21 79 1.0 0.3 100 379 3.8 1.2 8 4 21 79 1.0 0.3 40 22
VB-750 63 238 2.9 0.9 42 159 2.1 0.6 32 121 1.8 0.5 110 416 4.3 1.3 12 7 32 121 1.8 0.5 40 22
VB-1000 85 322 3.9 1.2 56 212 2.8 0.9 42 159 2.3 0.7 120 454 4.9 1.5 14 8 42 159 2.3 0.7 40 22
Model
No.
Input
Rating
Btu/hr
Output
Rating
Btu/hr
Water
Flow
TemperatureRise-°F(°C)
40 60 80 90 100 120 140
(22) (33) (44) (90) (56) (67) (78)
VW-500 500,000 421,500
GPH 1,268 845 634 563 507 423 362
LPH 4,797 3,198 2,399 2,132 1,919 1,599 1,371
VW-700 750,000 633,750
GPH 1,901 1,268 951 845 761 634 543
LPH 7,196 4,797 3,598 3,198 2,878 2,399 2,056
VW-1000 1,000,000 845,000
GPH 2,535 1,690 1,268 1,127 1,014 845 724
LPH 9,595 6,397 4,797 4,264 3,838 3,198 2,741