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Van Air RD Series (non cycling dryers) | Deltech HG Series (non cycling dryers) | Deltech HTD Series High Inlet Temperature Dryers | Refrigerated Compressed Air Dryers Main

Refrigerated Compressed Air Dryers

RD 10 to RD40 Refrigerated Dryers
RD60 and larger refrigerated compressed air dryers

RD60 and larger dryers look similar to the unit above.

RD Series Refrigerated Dryers Specifications
RD Series Refrigerated Dryer Filters
Size RD Series Refrigerated Dryer (Sizing Tool)

eCompressedair offers Van Air's RD Series refrigerated dryers. Models to 500 SCFM are available to purchase online for help with larger units contact us.

Our refrigerated air dryers remove moisture from indoor air lines and reduce maintenance costs associated with air line contaminants. Backed by 50 years of expertise, Van Air’s refrigerated compressed air dryers RD Series offers these advantages and features:

35-38°F dew point
Shell and tube heat exchangers for maximum performance and low pressure drop
No heat exchanger freeze-ups with low loads
160°F maximum inlet temperature
CFC-Free R134A refrigerant
Non-cycling refrigerant compressors
Refrigerant analyzer gauge
Compressor run light
Built in drain valve (mechanical on RD-10 to RD-30 and electronic on all other units

Effective Moisture Removal for Indoor Air Systems

For indoor air line protection, RD Series refrigerated dryers keep your pneumatic equipment running at peak efficiency with a constant 35°F-38°F dew point.

Low-Load Protection

A capacity control valve allows the dryer to operate efficiently at low loads by preventing heat exchanger freeze-ups. It also keeps the dew point steady when the flow changes.

Specifications

Click on a model number for pricing and more information.

Model	Standard Capacity	Height	Width	Length	In/Out (NPT)	Comp. (HP)	Comp. (KW)	Weight (lbs)	Voltage
RD-10	10 SCFM	14 in.	15 in.	18 in.	1/2 in. NPT	1/6 HP	.29 KW	69 lbs	120 VAC
RD-20	20 SCFM	14 in.	15 in.	18 in.	1/2 in. NPT	1/5 HP	.36 KW	78 lbs	120 VAC
RD-30	30 SCFM	23 in.	14 in.	34 in.	1/2 in. NPT	1/4 HP	.46 KW	140 lbs	120 VAC
RD-40	40 SCFM	23 in.	14 in.	34 in.	1/2 in. NPT	1/3 HP	.58 KW	160 lbs	120 VAC standard 230 VAC option
RD-60	60 SCFM	23 in.	14 in.	34 in.	1 in. NPT	1/2 HP	.86 KW	176 lbs	120 VAC standard 230 VAC option
RD-80	80 SCFM	32 in.	20 in.	35 in.	1 in. NPT	1/2 HP	.86 KW	200 lbs	120 VAC standard 230 VAC option
RD-100	100 SCFM	32 in.	20 in.	35 in.	1 in. NPT	3/4 HP	1.2 KW	256 lbs	120 VAC standard 230 VAC option
RD-130	130 SCFM	32 in.	20 in.	35 in.	1 1/2 in. NPT	3/4 HP	1.2 KW	256 lbs	120 VAC standard 230 VAC option
RD-150	150 SCFM	32 in.	20 in.	35 in.	1 1/2 in. NPT	3/4 HP	1.2 KW	270 lbs	120 VAC standard 230 VAC option
RD-220	220 SCFM	38 in.	22 in.	47 in.	2 in. NPT	1 HP	1.75 KW	390 lbs	230 VAC standard 460-3 option
RD-250	250 SCFM	38 in.	22 in.	47 in.	2 in. NPT	1 ½ HP	2.63 KW	418 lbs	230 VAC standard 460-3 option
RD-330	330 SCFM	52 in.	29 in.	55 in.	2 in. NPT	1 ½ HP	2.63 KW	700 lbs	230 VAC standard 460-3 option
RD-400	400 SCFM	52 in.	29 in.	55 in.	2 ½ in. NPT	2 HP	3.5 KW	925 lbs	460-3 Phase
RD-500	500 SCFM	52 in.	29 in.	55 in.	2 ½ in. NPT	3 HP	5.25 KW	968 lbs	460-3 Phase

Refrigerated Dryer Sizing

If operating conditions vary from the standard of 100 PSIG, 100°F inlet temperature, and 100°F ambient, use the correction factors against the standard flow to size a refrigerated compressed air dryer.

Example
125 SCFM at 120°F inlet temperature, 125 PSIG and 110°F ambient.
125 * 1.3 * .98 * 1.1 = 175.1 SCFM
Model RD-220

Inlet Temperature Correction Factors
90°F	100°F	110°F	120°F	140°F	160°F
.85	1	1.15	1.3	1.7	1.9

Working Pressure Correction Factor
50 PSIG	75 PSIG	90 PSIG	100 PSIG	110 PSIG	125 PSIG	150 PSIG
1.25	1.11	1.05	1	.99	.98	.95

Ambient Temperature Correction Factor
90°F	100°F	110°F
.95	1	1.1

Filter Assembly Recommendations

Click on the filter assembly part number for pricing and full specifications. There is a drawing below the recommendation table that shows where in the system the filters should be installed. RD Series dryers should have atleast a 1 um coalescer upstream of them to remove bulk liquid and oil.

Model	Pre-Filter	After-Filter
RD-10	MAC-15-1/4-GC 1 um Coalescer	MAC-15-1/4-HC .01 um Coalescer
RD-20	MAC-25-1/2-GC 1 um Coalescer	MAC-25-1/2-HC .01 um Coalescer
RD-30	MAC-55-1/2-GC 1 um Coalescer	MAC-55-1/2-HC .01 um Coalescer
RD-40
RD-60
RD-80	MAC-85-3/4-GC 1 um Coalescer	MAC-85-3/4-HC .01 um Coalescer
RD-100	MAC-100-1-GC 1 um Coalescer	MAC-100-1-HC .01 um Coalescer
RD-130	MAC-150-1-GC 1 um Coalescer	MAC-150-1-HC .01 um Coalescer
RD-150	MAC-150-1-GC 1 um Coalescer	MAC-150-1-HC .01 um Coalescer
RD-220	MAC-265-1-1/4-GC 1 um Coalescer	MAC-265-1-1/4-HC .01 um Coalescer
RD-250	MAC-265-1-1/4-GC 1 um Coalescer	MAC-265-1-1/4-HC .01 um Coalescer
RD-330	MAC-350-1-1/2-GC 1 um Coalescer	MAC-350-1-1/2-HC .01 um Coalescer
RD-400	MAC-400-2-GC 1 um Coalescer	MAC-400-2-HC .01 um Coalescer
RD-500	MAC-500-2-GC 1 um Coalescer	MAC-500-2-HC .01 um Coalescer

Refrigerated Compressed Air Filter Set-up

Sizing Tool

Select your inlet air temperature, PSIG, maximum ambient temperature, and enter your SCFM to and click "Size It" to get a refrigetated dryer recommendation.

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