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Catalog No.: 2000.461A Effective: 07-21-10 Replaces: 9-15-07
Raypak, Inc.
2151 Eastman Avenue, Oxnard, CA 93030
(805) 278-5300
Fax (800) 872-9725
www.raypak.com
Delta Limited – Type H
Models 399B-899B Model
SPECIFICATIONS
A
pprox.
MBTUH
A
GH
K
T W
A
mp. Shipping
Model Input Output Width NPT NPT Draw* Wt. (Lbs)
399B 399 335 43 ¾ 2 6 6 18-1/2 < 6 445
499B 500 420 50 1 ¼ 2 6 6 22 < 6 545
649B 650 546 60 ½ 1 ¼ 2 8 6 27-1/4 < 6 590
749B 750 630 67 ½ 1 ¼ 2 8 6 30-3/4 < 6 675
899B 900 756 78 1 ¼ 2 8 6 36 < 7 740
* Pump not included
Dimensions are in inches.
Rates shown are for natural or propane gas, and elevations up to 4,500 feet.
For installation above 4,500 feet, please contact manufacturer.
Recommended natural gas supply pressure is 7 – 10.5” WC. Recommended
propane gas supply pressure is 11 - 13” WC.
NOTE: Pump location varies
based on model selected
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
399B 68 5.4 34 1.5 22 <1 20 <1 34 90 10.0 7
499B 85 9.2 42 2.3 28 1.1 21 <1 40 90 10.5 9
649B N/A N/A 55 4.0 36 1.8 28 1.1 40 90 10.7 12
749B N/A N/A 64 5.5 42 2.5 32 1.6 40 90 11.0 14
899B N/A N/A 76 8.5 51 3.8 38 2.2 40 90 11.8 16
Basis is 20 GPM or 40°F ∆T for minimum flow, 90 GPM for maximum flow.