Air Process Heaters Applications Baking, Drying, Laminating, Metal Working, Packaging, Plastic Welding, Preheating, Sealing, Soldering, Shrink Fitting, Synthetic Fabric Sewing. Features • The Air Process heater will provide hot air and gas up to 1000°F(540°C) with infinite control by varying the voltage and air velocity supplied. Units are fitted with a tubing "T" for convenient power lead outlet, while larger diameters can be supplied with post terminals on the sheath for direct electrical connections. • For easier installation, Hotwatt can supply male or female NPT threaded fittings, hose adapters, flanges, or custom fittings to your specifications. • Made in U.S.A. Multiple Heat Whenever it is necessary to have a single unit incorporate two or more different wattages, Hotwatt will provide air heaters from 58" diameter and up with multiple circuits. Some uses of these units include: quick heat-up, standby circuits for maintenance of low temperatures, providing different wattages when there is a wide variation in thermal loads, and replacing more expensive variable powerstats for wattage control. Tolerances Wattage tolerances are held to +5, -10% or better at the voltage specified.

Air Heater Selection • Determine the volume of air or gas(SCFM) you will be heating. • Determine temperature rise in degrees Fahrenheit(AT°F). • Calculate wattage required as follows: ... ++ SCFM x AT°F Air Process Heaters Tee Type — %" to W diameter Take into consideration the physical size requirements of your application and determine from the specifications chart for each size, the air heater best suited for your application. High watt densities shown in the specifications charts are subject to factory approval due to resistance wire limitations. For temperature control, see page 54 and131-134....

Air Process Heaters Alternate Style – 3⁄4" to 11⁄4" diameter. • Post type terminals. • Specify ‘SF3’ for alternate style. Optional brass bushing. Post terminals. Mica insulation. Ceramic coil support. Stainless steel sheath. Optional st. st. bushing. Resistance element. Optional Fittings HF: Hose adapter (entry only). How To Order After determining the wattage required for application, select heater based upon physical space available, maximum SCFM, temperature, and pressure as shown on the following pages. Tee Type Air Heaters are supplied with 6" (SF2) leads, all other models with Post (SF3)...

Air Process Heaters ⁄8" Diameter – Horizontal use only Optional stainless steel bushing — 1⁄4" NPT male fitting. Fiberglass insulated leads. Epoxy seal. Copper tee. Optional brass bushing — 1⁄4" NPT male fitting. Maximum Amperage: 6 Cross Sectional Flow Area: .03 sq. in. Maximum CFM: 8 Max. Watts/linear in CFM of heated length Special Features Available 10.0 Pressure Drop (psig) MF: 1⁄4" NPT male fittings (add MF to catalog number). HF: Hose adapter on entry and only (add HF to catalog number and specify I.D. of hose).

Air Process Heaters M IN STOCK ITEMS M Standard Air Heaters Supplied with: Type SF2 leads LENGTH

Air Process Heaters ⁄2" Diameter – Horizontal use only Optional stainless steel bushing — 3⁄8" NPT male fitting. Fiberglass insulated leads. Epoxy seal. Copper tee. Optional brass bushing — 3⁄8" NPT male fitting. Maximum Amperage: 10 Cross Sectional Flow Area: .036 sq. in. Maximum CFM: 10 Max. Watts/linear in CFM of heated length Pressure Drop (psig) Special Features Available MF: 3⁄8" NPT male fittings (add MF to catalog number). FF: 1⁄8" NPT female fittings (add FF to catalog number). HF: Hose adapter on entry end only (add HF to catalog number and specify I.D. of hose).

Air Process Heaters M IN STOCK ITEMS M Standard Air Heaters Supplied with: Type SF2 leads LENGTH

Air Process Heaters ⁄8" Diameter – Horizontal use only Optional stainless steel bushing — 1⁄2" NPT male fitting. Fiberglass insulated leads. Epoxy seal. Copper tee. Optional brass bushing — 1⁄2" NPT male fitting. Maximum Amperage: 15 Cross Sectional Flow Area: .072 sq. in. Maximum CFM: 15 Max. Watts/linear in CFM of heated length Special Features Available MF: 1⁄2" NPT male fittings (add MF to catalog number). FF: 1⁄4" NPT female fittings (add FF to catalog number). HF: Hose adapter on entry and only (add HF to catalog number and specify I.D. of hose). SF-28: Three Phase SF-29: Multiple Heat...

Air Process Heaters M IN STOCK ITEMS M Standard Air Heaters Supplied with: Type SF2 leads LENGTH

Air Process Heaters ⁄4" Diameter – Horizontal use only Optional stainless steel bushing — 3⁄4" NPT male fitting. Fiberglass insulated leads. Epoxy seal. Copper tee. Optional brass bushing — 3⁄4" NPT male fitting. Maximum Amperage: 20 Cross Sectional Flow Area: .126 sq. in. Maximum CFM: 20 Max. Watts/linear in CFM of heated length Special Features Available MF: 3⁄4" NPT male fittings (add MF to catalog number). FF: 1⁄4" NPT female fittings (add FF to catalog number). HF: Hose adapter on entry and only (add HF to catalog number and specify I.D. of hose). SF-3: Alternate style — Post terminals SF-29:...

Air Process Heaters M IN STOCK ITEMS M Standard Air Heaters Supplied with: Type SF2 leads LENGTH

Air Process Heaters 11⁄4" Diameter – Horizontal use only Construction 1 2 3 4 5 Optional stainless steel bushing — 11⁄4" NPT male fitting. Fiberglass insulated leads. Epoxy seal. Copper tee. Optional brass bushing — 11⁄4" NPT male fitting. Maximum Amperage: 25 Cross Sectional Flow Area: .348 sq. in. Maximum CFM: 50 Max. Watts/linear in CFM of heated length Special Features Available MF: 11⁄4" NPT male fittings (add MF to catalog number). FF: 1⁄2" NPT female fittings (add FF to catalog number). HF: Hose adapter on entry and only (add HF to catalog number and specify I.D. of hose). Pressure Drop...