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Catalog No.: 3500.252D Effective: 11-15-07 Replaces: 1-1-07
Hi Delta – Type WH
Models 302B-902B Model
NOTES: 1. Rates shown are for natural or propane gas, and elevations up to 5,000 feet. For installation above 5,000 feet, please contact manufacturer.
2. Required natural gas pressure is 7 – 10.5” WC. Required propane gas pressure is 11 - 13” WC.
RECOVERY RATES (GPH)
Temperature Rise in °F
Model 20° 30° 40° 50° 60° 70° 80° 90° 100°
302B 1545 1030 773 618 515 442 386 343 309
402B 2055 1370 1028 822 685 587 514 457 411
502B 2576 1717 1288 1030 859 736 644 572 515
652B 3348 2232 1674 1339 1116 957 837 744 670
752B 3864 2576 1932 1545 1288 1104 966 859 773
902B 4636 3091 2318 1855 1545 1325 1159 1030 927
RATES OF FLOW AND PRESSURE DROPS
10°F ∆T 20°F ∆T 30°F ∆T
Min. Flow Max. Flow
Model GPM
∆P (ft)
GPM
∆P (ft)
GPM
∆P (ft)
GPM
∆P (ft) ∆T
GPM
∆P (ft) ∆T
302B 52 3.3 N/
A
N/
A
N/
A
N/
A
40 2.0 13 90 9.8 6
402B 68 5.4 N/A N/A N/A N/A 40 2.0 17 90 10.0 8
502B 86 9.3 43 2.3 N/A N/A 40 2.1 21 90 10.4 9
652B N/A N/A 56 4.2 N/A N/A 40 2.2 28 90 10.8 12
752B N/A N/A 64 5.3 42 2.6 42 2.6 30 90 11.3 14
902B N/A N/A 77 8.5 51 3.9 51 3.9 30 90 11.7 17
Basis is 40 GPM or 30°F ∆T for minimum flow, 90 GPM for maximum flow.
SPECIFICATIONS
A
pprox.
MBTUH
A
GH
K
T W
A
mp. Shipping
Model Input Output Width NPT NPT Draw Wt. (Lbs)
302B 300 255 36 3/4 2 5 6 18 6 380
402B 399 339 43 3/4 2 6 6 18-1/2 6 445
502B 500 425 50 1-1/4 2 6 6 22 6 545
652B 650 553 60-1/2 1-1/4 2 8 6 27-1/4 6 590
752B 750 638 67-1/2 1-1/4 2 8 6 30-3/4 6 675
902B 900 765 78 1-1/4 2 8 6 36 7 740
Dimensions are in inches.
NOTE: Pump location
varies based on model
and application.
Raypak, Inc. 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (800) 872-9725 www.raypak.com