Heated Dessicant Dryers

Arrow externally heated twin tower regenerative dryers combine the reliability of our "RH" series desiccant dryers with a added heater which allows a 7% purge rate. The purge air in the RE series is heated by a 100% efficient incoloy sheath electric heater housed in an externally mounted shell. A thermostat controls the temperature of the heater allowing long life and energy savings.

• Standard Features • Specifications • Options • Filters • Manual • Drawings

Standard Features:

• Fully automatic to provide the most efficient operation
• Panel mounted Gauges to monitor pressure
• Adjustable purge regulator for optimum dryer efficiency
• Indicator Lights that display tower operating status
• Reliable pneumatic valve operation
• Controlled repressurization to eliminate line surges and dessicant attrition.
• Removable stainless steel diffusers screens
• Nema 4 electrical construction
• Universal accepted 120V/1ph/60Hz
• Power on indicator to show dryer status
• Tower relief valves to prevent overpressurization.
• ASME coded and stamped pressure vessels.
• Microproccessor controls or PLC for controls.
• Control air line filter with replaceable element to protect pneumatic circuitry.
• Exhaust purge muffler for quiet operation
• Pressure alarm package that indicates failure to shif, failure to depressurize, failure to repressurize and failure to purge.
• Heater Thermostat to control and maintains user adjusted regeneration temperature to account for changing flow or seansonal moisture variations.
• Interlock circuit to protect units from heater burnout due to loss of purge air flow.

Specifications:

Model	Capacity SCFM	Heater (KW)	Pipe Size Connection	Height (in)	Width (in)	Width (in)	Weight (Lbs.)
RE231	50	.75	3/4" NPT	40	44	24	440
RE232	75	1.25	3/4" NPT	40	44	24	600
RE233	100	1.5	1" NPT	64	44	24	760
RE234	150	2.00	1-1/2" NPT	75	49	36	930
RE235	200	2.50	1-1/2" NPT	75	49	36	1050
RE236	250	3.00	1-1/2" NPT	75	49	36	1330
RE237	300	4.00	2" NPT	68	51	36	1525
RE238	350	4.00	2" NPT	68	51	36	1700
RE239	400	5.00	2" NPT	86	51	36	1940
RE240	500	6.00	2" NPT	86	51	36	2275
RE241	650	6.50	2-1/2" NPT	97	67	36	2650
RE242	750	7.50	2-1/2" NPT	97	67	36	3170
RE243	900	9.00	2-1/2" NPT	97	67	36	3750
RE244	1100	12.00	3" FLG	97	72	36	4175
RE245	1300	12.00	3" FLG	97	72	36	4580
RE246	1500	15.00	3" FLG	122	96	60	5020
RE247	1800	20.00	3" FLG	122	96	60	5410
RE248	2100	20.00	3" FLG	122	96	60	6040
RE249	2500	24.00	4" FLG	122	108	60	8720
RE250	3000	30.00	4" FLG	122	108	60	9880

**Specification and dimension are subject to change without notice**

Standard Operating Pressure	150 psig Maximum
Standard Voltage RE231-RE233	120V/1ph/60Hz
Standard Voltage RE234-RE250	480V/3ph/60Hz
Pre and After Filters	must be used on all dryers
Maximum Pressure Drop	2 psi

Options:

Recommended Filters: