24
Table 7 — Hot Water Pressure Drop
50BVC,J,Q Units
Table 8 — Hot Water Pressure Drop
50BVT,V,W Units
Table 9 — Economizer Pressure Drop Curve
(ft wg), 50BVC,J,Q Units
Table 10 — Economizer Pressure Drop Curve
(ft wg), 50BVT,V,W Units
FLOW RATE
(GPM)
SIZE 020 SIZE 024 SIZE 028 SIZE 034
PRESSURE DROP (FT WG)
10 0.7 0.7 0.7 —
15 1.5 1.5 1.5 —
20 2.6 2.6 2.6 —
25 4.0 4.0 4.0 —
30 5.8 5.8 5.8 0.1
35 7.8 7.8 7.8 0.1
40 10.2 10.2 10.2 0.1
45 12.9 12.9 12.9 0.2
50 15.8 15.8 15.8 0.2
55 ———0.3
60 ———0.3
65 ———0.4
FLOW RATE
(GPM)
SIZE 034 SIZE 044 SIZE 054 SIZE 064
PRESSURE DROP (FT WG)
45 2.4———
50 3.0———
55 3.6———
60 4.2———
65 5.0———
70 5.7———
75 6.6———
80 7.5———
85 8.4———
90 9.52.62.52.5
100 — 2.9 3.1 3.1
110 — 3.5 3.7 3.7
120 — 4.2 4.2 4.4
130 — 5.1 4.9 5.1
140 — 5.9 5.7 5.9
150 — 6.7 6.6 6.6
160 — 7.6 7.6 7.5
170 — 8.6 8.6 8.5
180 — 9.6 9.6 9.5
FLOW RATE
(GPM)
SIZE 020 SIZE 024 SIZE 028 SIZE 034
PRESSURE DROP (FT WG)
35 8.9 — — —
40 11.5 11.0 — —
45 14.4 13.8 — —
50 17.6 16.9 16.9 —
55 21.1 20.4 20.4 —
60 24.9 24.1 24.1 3.5
65 29.0 28.1 28.2 4.1
70 34.4 32.5 32.5 4.7
75 — 37.1 37.2 5.4
80 — 42.1 42.1 6.1
85 — — 47.4 6.9
90 — — 52.9 7.7
95 — — 58.7 8.5
100 — — 64.9 9.4
105 — — — 10.3
110 — — — 11.3
115 — — — 12.3
120 — — — 13.4
FLOW RATE
(GPM)
SIZE 034 SIZE 044 SIZE 054 SIZE 064
PRESSURE DROP (FT WG)
60 13.1 — — —
70 17.9 — — —
80 23.5 5.8 — —
90 29.8 7.3 — —
100 36.9 9.1 9.0 —
110 44.8 11.0 11.0 —
120 53.4 13.1 13.1 13.1
130 — 15.4 15.4 15.4
140 — 17.9 17.9 17.9
150 — 20.6 20.6 20.6
160 — 23.5 23.5 23.5
170 — — 26.6 26.5
180 — — 29.8 29.8
190 — — 33.3 33.2
200 — — 36.9 36.8
210 ———40.7
220 ———44.7
230 ———48.9
240 ———53.3