HEATED REGENERATIVE DESICCANT DRYERS BPD SERIES | EHD SERIES
Product Specifications
Inlet Flow Capacity (CFM @100 psig)
Dimensions (in) (W x D x H)
Technical Overview
Model
Port Size
Weight (lbs)
BPD Series Specifications
–40° F
Standard outlet pressure dewpoint:
BPD-500 BPD-650 BPD-800 BPD-1000 BPD-1250 BPD-1500 BPD-2000 BPD-2500 BPD-3000 BPD-3500 BPD-4000 BPD-5000 BPD-6000 BPD-7000 BPD-8000 BPD-9000 BPD-10000 EHD-200 EHD-250 EHD-300 EHD-400 EHD-500 EHD-600 EHD-800 EHD-900 EHD-1000 EHD-1250 EHD-1500 EHD-2000 EHD-2500 EHD-3000 EHD-3500
500 650 800
2” NPT 2” NPT 3” FLG 3” FLG 3” FLG 3” FLG 4” FLG 4” FLG 6” FLG 6” FLG 6” FLG 6” FLG 6” FLG 8” FLG 8” FLG 10” FLG 10” FLG
2,500 2,750 4,100 4,500 8,200 8,200 9,800
71x45x92 71x45x92 93x60x95 93x60x95 93x60x97 93x60x97
460V/3PH/60Hz
Operating voltage: Pre-filtration grade: Post-filtration grade: NEMA 12 Enclosure:
0.01µm
1µm (high temperature)
Standard
1,000 1,250 1,500 2,000 2,500 3,000 3,500 4,000 5,000 6,000 7,000 8,000 9,000
ASME certified vessels: Standard CRN approved vessels (selected provinces): Standard cUL & UL control panel: Standard Max inlet air temperature: 120° F Min/max ambient air temp.: 25° F/110° F (BPD) 25° F/105° F (EHD) Min/max operating pressure: 85psig/125psig (BPD) 100psig/125psig (EHD) Average purge air:
106x65x114 106x82x114 130x82x134 130x82x134 130x82x134 130x82x134
15,000 19,000 19,000 28,000
CF CF CF CF CF CF
3%* (BPD), 7% (EHD) * With dry air cooling activated
CF CF CF CF CF
How to Find Air Flow Capacity
10,000
EHD Series Specifications
Airflow capacity = Nominal capacity of dryer x Factor F1 x Factor F2 Example: A EHD-500 has a nominal capacity of 500 SCFM. What is the maximum allowable flow through the dryer at following operating conditions? Air Inlet Pressure: 110 PSIG (7.6 BARG) F1 = 1.04 Air Inlet Temperature: 105° F (40.50° C) F2 = 0.93 Airflow capacity = 500 x F1 x F2 Airflow capacity = 500 x 1.04 x 0.93 = 483.6 SCFM This is the maximum airflow rate that the dryer can accept under those operating conditions. How to Select a Suitable Dryer for a Given Capacity Minimum Std. Airflow = Design Airflow / Factor F1 / Factor F2 Example: Given the operating parameters below, find a suitable dryer.
200 250 300 400 500 600 800 900
1” NPT
950
42x38x89 43x43x90 43x43x90 47x45x92 47x45x92 47x45x92 80x60x92 80x60x95
1 1 ⁄ 1 1 ⁄
2 ” NPT 2 ” NPT
1,100 1,250 1,500 1,600 2,100 2,500 2,800 4,100 4,700 4,900 5,300 6,200 7,600 8,300
2” NPT 2” NPT 2” NPT 3” FLG 3” FLG 3” FLG 3” FLG 3” FLG 4” FLG 4” FLG 6” FLG 6” FLG
1,000 1,250 1,500 2,000 2,500 3,000 3,500
80x60x95 80x60x95 80x60x95 85x68x113 85x68x113 125x82x134 125x82x134
Capacity Correction Factors for Differing Inlet Air Temperatures °F 70 80 90 100 105 110 115 120 Factor 1.12 1.10 1.06 1.00 0.93 0.86 0.80 0.75 Capacity Correction Factors for Differing Operating Pressure Operating Pressure PSIG 50 60 70 80 90 100 110 120 130 140 150 175 200 225 250 Factor 0.56 0.65 0.74 0.83 0.91 1.00 1.04 1.08 1.12 1.16 1.20 1.29 1.37 1.45 1.52
Design Flow Rate: 950 SCFM Inlet Air Pressure: 110 PSIG Inlet Air Temperature:105° F
F1 = 1.04
F2 = 0.93 Minimum Std. Airflow = 950/1.04/0.93 = 982.22 Therefore, the model suitable for the conditions above is EHD-1000.
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v1.5 8-25-2023
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