Tempco Cast-In Circulation Heaters

Tempco offers three standard Circulation Heater designs that are compact lightweight unit used for heating gases or liquids. The material being heated is pumped through the coiled seamless 316 SS tubing which has been cast into an aluminum body that acts as the heat exchanger. A cartridge or tubular heating element is the heat source. The material being heated never comes into contact with the heating element.

CHX Series

/Tempco/Data-Assets/03-Cast-In-Images/WebCHX-100-EP.jpg

CHX – 100 Series

  • Replaceable 5/8″ diameter Hi-Density Cartridge Heater
  • Cast Aluminum heat exchanger body
  • Operating pressure up to 3000 PSI
  • Operating temperature up to 350°F (177°C)
  • Heater Lengths: 6.5″ and 12.5″
/Tempco/Data-Assets/03-Cast-In-Images/WebCHX-200-Rose-dual-cool.jpg

CHX – 200 Series

  • Cast-In Tubular Heater
  • Cast Aluminum heat exchanger body
  • Operating pressure up to 3000 PSI
  • Operating temperature up to 392°F (200°C)
  • Heater Lengths: 13.5″, 17.75″, and 23.75″
  • Single- or Three-Phase
/Tempco/Data-Assets/03-Cast-In-Images/WebCHX-300-EP-dual-cool.jpg

CHX – 300 Series

  • Cast-In Tubular Heater
  • Cast Aluminum heat exchanger body
  • Operating pressure up to 3000 PSI
  • Operating temperature up to 392°F (200°C)
  • Heater Lengths: 13.5″, 19.5″, and 25.5″
  • Single- or Three-Phase

Electrical Terminations

/Tempco/Data-Assets/02-Cartridge-Images/WebC029.jpg

Type CN: NPT Fitting

A double threaded pipe fitting is attached to the end of a cartridge heater to allow for installation into a threaded hole. Brass fittings are silver brazed and stainless steel fittings are heli-arc welded.

/Tempco/Data-Assets/03-Cast-In-Images/WebCATALTM3.jpg

Type T: Mica Insulator

Mica insulator is the same diameter as the heating element.
.260″ diameter heater has 6-32 screw terminals.
.315″ diameter heater has 8-32 screw terminals.
.430″ diameter heater has 10-32 screw terminals.

/Tempco/Data-Assets/03-Cast-In-Images/WebCATALTM3.jpg

Type T7: Ceramic Insulator

Ceramic insulator is the same diameter as the heating element.
.260″ diameter heater has 6-32 screw terminals.
.315″ diameter heater has 8-32 screw terminals.
.430″ diameter heater has 10-32 screw terminals

Termination Protection

/Tempco/Data-Assets/03-Cast-In-Images/WebNEMA4_100RefDrwng.jpg

NEMA 4 Box

NEMA 4 enclosure with standoff

/Tempco/Data-Assets/03-Cast-In-Images/WebNEMA7_100RefDrwng.jpg

NEMA 7 Box

NEMA 7 enclosure with standoff

/Tempco/Data-Assets/03-Cast-In-Images/WebA024.jpg

Type C2: Standard Terminal Box (on flat pad)

Type C2 is an individual terminal box for protecting the terminals on each Cast-In Band Heater half and on many other Cast-In Heater designs with one set of heater terminals.
The C2 box design requires a flat pad on half-round castings or a flat surface on other casting designs for mounting. It is made from heavy gauge, rust-resistant sheet metal. The cover is removable for easy access to terminals. The box has two 7/8″ diameter knockouts opposite each other for standard 1/2″ BX connectors.

/Tempco/Data-Assets/03-Cast-In-Images/WebA022.jpg

Type EP: Explosion & Moisture Resistant Box

Cast iron explosion and moisture resistant boxes should be used in areas where the surrounding air may become contaminated with combustible gases or a high humidity level may exist. Installation requires one box per Cast-In Heater half and they are brazed to the tubular heater. The standard box has one 1/2″ NPT hub.

/Tempco/Data-Assets/03-Cast-In-Images/WebA778.jpg

Type MPR: Moisture Resistant Box

This design has a moisture resistant die cast aluminum box with a non-removable polyurethane gasket in the lid. Lid is secured with captive stainless steel screws. Body and lid are painted in basic industrial gray; interior contains copper ground screw. Box is mounted to a plate that is brazed to the element. Available in a wide variety of sizes.

Cooling/Flow Tube Fittings

/Tempco/Data-Assets/03-Cast-In-Images/WebA056.jpg

Type FF: Flared Seal Fittings

Brass flared seal fittings are well adapted for low to medium
pressure and resistant to mechanical pullout. Available for 3/8″ and 1/2″ diameter tubing with SAE 45° flare.

Diameter
Tubing
Thread Part Number
3/8″ 5/8″-18 FTG-124-101
1/2″ 3/4″-16 FTG-124-104
/Tempco/Data-Assets/03-Cast-In-Images/WebA021.jpg

Type HS: Hi-Seal Fittings

Hi-seal brass fittings are highly dependable under the most adverse conditions. For reliable and trouble-free service with ease of installation, we strongly recommend hi-seal fittings.
Available for 3/8″ and 1/2″ diameter tubing. Male thread is 1/2″ NPT for 1/2″ tube and 3/8″ tube.

Diameter
Tubing
Part Number
3/8″ FTG-118-124
1/2″ FTG-118-116

Thermocouple Calibration

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTypeJ_TC.jpg

Type J

United States, Canada, Mexico: Iron/Constantan, Temperature Range: 32-1382°F (0-750°C)

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTypeK_TC.jpg

Type K

United States, Canada, Mexico: Chromel®/Alumel, Temperature Range: 32-2282°F (0-1250°C)

Bayonet Style Thermocouple

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTCPG238A.jpg

Style 1: Spring Adjustable Bayonet Thermocouple

Design Features

  • Insertion length adjustable from 1″ to 10″.
  • Forms easily to any angle.
  • One style can replace several fixed length thermocouples.
  • Use with bayonet adapters on page 14-87.
/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTCPG238E.jpg

Style 2: Armor Cable Adjustable Bayonet Thermocouple

Design Features

  • Insertion length adjustable over length of armor cable.
  • Forms easily to any angle.
  • One style can replace several fixed length thermocouples.
  • Use with bayonet adapters on page 14-87.

Thermocouple Terminations

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTC58_B.jpg

Style B: Plain Leads

Split leads with plain ends

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTC58_S.jpg

Style S: Spade Lugs

Split leads with spade lugs on both leads

/Tempco/Data-Assets/14-Temp-Sensor-Images/WebTC58_P.jpg

Style P: Standard Plug

Standard Plug end

Thermostats

/Tempco/Data-Assets/13-Temp-Control-Images/WebK610.jpg

High Limit

General purpose high limit switch with manual reset

Once fixed opint is reached, the high limit switch will remain open until the manual reset button is pushed

/Tempco/Data-Assets/13-Temp-Control-Images/WebK606.jpg

SPST

General purpose thermostat recommended for most applications

Capable of controlling loads from 120V/30A up to 480V/20A

/Tempco/Data-Assets/13-Temp-Control-Images/Web1005-58.jpg

DPST

Recommended for directly controlling high wattage loads due to its heavy duty contacts

Capable of controlling loads up to 30 Amps at 277 VAC and 10 Amps at 480 VAC

Excel Automation Inc.