Backer Hotwatt Miniature Circulation Heater
Eagle Sensors & Controls is an authorized Backer Hotwatt distributor. Contact us with sales and application support.
Cartridge-and-ImmersionFeatures
- The Miniature Circulation Heater is a packaged heater for heating small volumes
of liquids as in photographic developer solutions, chemicals, dyes, and inks. - Constructed of 316 series stainless steel.
- Pressures to 100 psig.
Construction
- Heliarc weld.
- Stainless steel sheath.
- Liquid turbulator wire.
- Ground Post.
- Post terminals
- Connection box. 2 3/4″ x 1 1/2″ x 1 1/2″.
Specifications
| Maximum Amperage: 20 | |||
| Cross Sectional Flow Area: .152 sq. in. |
| Sizes:Length | Heated Length | Catalog No. | Wattage |
|---|---|---|---|
| 6″ | 4″ | PFO-6 | 600 |
| 8″ | 6″ | PFO-8 | 900 |
| 10″ | 8″ | PFO-10 | 1200 |
| 12″ | 10″ | PFO-12 | 1500 |
| 18″ | 16″ | PFO-18 | 2400 |
Above wattages are based on 50 watts per square inch for use with water at low flow.Higher flow rates and/or different liquids will effect allowable watt densities. Consult factory.
Sizes between those listed and larger in diameter are available. Consult factory.
Temperature Control
Thermocouple mounting fitting is available for use with the standard miniature circulation heater.The fitting is threaded into the exit end as shown below. Specify TC-5 fitting.
* Thermistor adapter and catalog number TH-1 must be used for thermistor probe mounting in the TC5 fitting.
Applications
- Restaurant Steam Tables
- Humidifiers
- Water Tanks
- Food Cookers
- Process Water Heaters
Features
- All stainless steel (316 L) with heliarc welds – No copper or braze material in contact with water.
- Patented – Low water protected – Automatic of internal high limit – Shuts off heater, then resets itself.
- Flexible hook-up leads for wire nuts.
- Easy to clean.
- Easy mounting through a 2 7/16″ diameter (2″ knockout) hole in bottom or side of tank – No need for mounting fittings.
- Other sizes and ratings available – Consult factory.
| L Dim | Catalog Number | K.W. | Volts | Line Amps | Phase |
|---|---|---|---|---|---|
| 8 | WB1511 | 1.5 | 120 | 12.5 | 1 |
| 8 | WB1521 | 1.5 | 208 | 7.2 | 1 |
| 8 | WB1541 | 1.5 | 240 | 6.3 | 1 |
| 12 | WB3011 | 3 | 120 | 25.0 | 1 |
| 12 | WB3021 | 3 | 208 | 14.4 | 1 |
| 12 | WB3041 | 3 | 240 | 12.5 | 1 |
| 14 | WB4021 | 4 | 208 | 19.2 | 1 |
| 14 | WB4041 | 4 | 240 | 16.7 | 1 |
| 14 | WB4051 | 4 | 480 | 8.3 | 1 |
| 18 | WB5021 | 5 | 208 | 24.0 | 1 |
| 18 | WB5041 | 5 | 240 | 20.8 | 1 |
| 18 | WB5051 | 5 | 480 | 10.4 | 1 |
| 18 | WB5023 | 5 | 208 | 13.9 | 3 |
| 18 | WB5043 | 5 | 240 | 12.0 | 3 |
| 18 | WB5053 | 5 | 480 | 6.0 | 3 |
| 22 | WB7023 | 7 | 208 | 19.4 | 3 |
| 22 | WB7043 | 7 | 240 | 16.8 | 3 |
| 22 | WB7053 | 7 | 480 | 8.4 | 3 |