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316 SS Inline Duct Heater up to 800°F and 1.2 kW Power-Liq

Low Flow Air Process and Liquid Circulation Heaters


Item# AHPF-062

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $535.09
5-9 $508.34
10-24 $497.63
25-49 $476.23
50-99 $465.53
100+ $454.83

In stock

Lead Time (If not in stock): 9 weeks
Low Flow Air Process and Liquid Circulation Heaters AHPF-062 AHPF-062
  • 316 Stainless Steel Construction
  • Air/Gas Flow up to 15 CFM
  • Air/Gas Outlet Temperatures up to 800°F (430°C)
  • Pressures up to 100 PSI*

AHPF-062 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Power Density
Supply Voltage
Maximum Outlet Air Temperature
Mounting Style
Mounting Size
Sheath Material

The AHPF series heaters are used to heat low flows of air, gas, water, or aqueous solutions. Applications include those where clean air is necessary, as in laboratories and environmental testing areas. The stream of air is heated by passing over an enclosed heated surface rather than directly over resistance elements. This method assures that no foreign matter will enter the stream of flow. The AHPF series is also used as a miniature circulation heater for small volume liquids as in photographic developer solution, chemicals, dyes, and inks. Calculate the flow rate, temperature rise, or power requirement as described on page J-17. For heating liquids, use the formulas on pages Z-10 or Z-41. The Thermocouple “T” fitting AHPF-NPT12 can be used with the subminiature thermocouple probes and with the SSLK series stainless steel compression fittings (see the OMEGA Complete Temperature Measurement Handbook and Encyclopedia®) and with stainless steel compression fittings (model SSLK-18-14) to monitor or control temperature at the outlet of the AHPF series heaters.

Cross Sectional Area: 0.152 sq. inches
Pressure Rating: Up to 100 PSIG
Wattage Tolerance: +5, -10% or better at the voltage specified
Outside Diameter: 11/4' (32 mm)
Inlet: Male 3/8' NPT
Outlet: 1/2' NPT

Model Number Volts Watts Heated Length in (mm) Watts/Inch* Maximum CFM Length in (mm) Weight lb (kg)
120 VAC Models
AHPF-0611204004 (102)91156 (152)1.00 (0.45)
AHPF-0811206006 (152)94158 (203)1.18 (0.54)
AHPF-10112010008 (203)1201510 (254)1.37 (0.62)
AHPF-121120120010 (254)1151512 (305)1.55 (0.70)
120/240 VAC Models**
4 (102)
4 (102)
6 (152)1.00 (0.45)
6 (152)
6 (152)
8 (203)1.18 (0.54)
8 (203)
8 (203)
10 (254)1.37 (0.62)
10 (254)
10 (254)
12 (305)1.55 (0.70)
*Indicates Watts per inch of heated length. Use the table above to determine minimum required flow rates.
**These air heaters can be operated on either 120 or 240 Volts. Specifications are shown for either 120 or 240 Volt operation.
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Rated 5 out of 5 by from Hi power in-line heater It is an excellent in-line heater. Note that it requires proper gauge wiring and power control system.
Date published: 2020-12-26
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can you confirm that these can be mounted vertically?

Asked by: JoBur830
The AHPF can be mounted vertically because the heating element wires are held inside the tube and are not meant to move dependent on orientation.
Answered by: ApplicationsEngineerANB
Date published: 2024-01-31

What are the materials that could come in contact with the air - Stainless? Also, can liquid flow through the system as well as air?

Asked by: MNBlue
Thank you for your inquiry. Non-corrosive gases are acceptable. Non-viscous/corrosive liquids are acceptable.
Answered by: Application Engineer CB
Date published: 2023-01-12

Can you supply or can you recommend an air flow switch for the AHPF-062 (as recommended on the page 1 of the manual)?

Asked by: GeNie
When you have established your flow rate the Flow Engineering group can be contacted at for the best Flow Switch recommendation for your specific application.
Answered by: ANB ENG
Date published: 2021-01-28

Can the heaters be set variably ie ramped up and down, or are they set to the listed value and are on/off?

Asked by: Gdub
Thank you for your inquiry. These heaters can be used with a temperature controller that has a ramp feature.
Answered by: Application Engineer CB
Date published: 2023-04-25

Can this be used for preheating hydrogen and hydrocarbons?

Asked by: Mr X
Thank you for your inquiry. This heater can be used for these gases
Answered by: Application Engineer CB
Date published: 2023-07-15

Is the AHPF-121 (and for that matter, the CN-TOT controller I'd like to use with it) NRTL certified?

Asked by: Anonymous
Thank you for your inquiry! Neither the AHPF-121 nor the CN-TOT are NRTL certified.
Answered by: Application Engineer CK
Date published: 2021-07-22

What is the minimum flow rate of each unit?

Asked by: Gabriel B
Thank you Gabriel B. The minimum flow rate of these units is 1 CFM.
Answered by: Application Engineer MC
Date published: 2023-06-22
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