Universal Solvents

A premium cast-in circulation heater with an array of special features to safely heat volatile solvents.

This shows the Universal Solvent Heater product, made by Cast Aluminum Solutions, engineered to heat semi Solvents for semiconductor wafer processing.


  • Wafer Cleaning & Rinsing (Wet Bench Systems)
  • Heating of Flow-Flashpoint Solvents & Acids
  • For Use with Single Pass or Recirculating Systems
  • Similar Uses as PFA-Tube Heaters, but Higher Temp Limits
  • Processes Involving Explosive Vapors
  • Situations where Exact Temperature Control is Critical


  • Fluid Path has No Contact with Heating Elements
  • Allows for Safe Heating of Low Flashpoint Solvents
  • Heated Media is Isolated in Seamless 316 Stainless Steel Tubes
  • Solvent Tubes are Passivated and Electro-Polished for Purity
  • Self-Draining Flow-Tubes Eliminate Trapped Debris
  • Cooling Tube Quick Reduces Heat Below Flashpoint
  • NEMA 7 Explosion-Proof Electrical Enclosure
  • Equipped with Robust Sensor & Switch Array



  • 6 kW Total to 8 kW Total
  • Voltage Range: 208 - 480 V
  • Max Line Current: 30 A per circuit

Tubing (Solvent Tube):

  • .750” OD (3/4") (19.1 mm)
  • .065” Wall (1.7 mm)
  • Overall Process Tube Length: 115.5” (2934 mm)
  • 316L Stainless Steel, Passivated & Electro-Polished

Tubing (Cooling Tube):

  • .250” OD (1/4") (6.3 mm)
  • .035” Wall (0.9 mm)
  • Overall Process Tube Length: 86.25” (2190 mm)
  • 316L Stainless Steel
  • Max Pressure: 3100 psi (213 bar)


  • NEMA 7 (explosion-proof)
    (Class 1, Div. 1 and 2, Groups B, C and D)

Max Working Temperature:

  • 392°F (200°C)
  • Published temperatures are for housing at 12 o’clock position;
    Higher temps may be possible at 6 o’clock position. See factory for details.


  • Two J-Type Thermocouples (cast in)
  • One J-Type Thermocouple (removable)
  • Snap Action High Limit Switch (with auto reset)


  • Solvent Tube: Flaretek®-Compatible or Swagelok® VCR
  • Cooling Tube: NPT or Swagelok® VCR

Available Accessories:

  • Insulating Jackets
  • Compression Fittings

Download the
Universal Solvent Heater
Technical Brochure

Temperature and Pressure Charts

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Dimensional Drawings

Wiring Diagrams

Detailed Images

Universal Solvent Heater Part Numbering System

This is the product configuration key for the Universal Solvent Heater, which is made by Cast Aluminum Solutions, and designed for warming of low flashpoint chemicals.

Building a Universal Solvent Heater Part Number:
Use the tables below to build each section of your Universal Solvent Heater.  After assigning letters/numbers for each applicable section, you will have a complete part number, ready to quote.
For assistance, contact CAS directly.

CAST-X 2500 In line heaters have many voltage and power options, up to 60 kilowatts.
Many CAST-X 2500 in line heaters are available with water-proof and explosion proof enclosures.
High limit switches for CAST-X 2500 in line heaters are shows in this image.
Thermocouple options for CAST-X 2500 in line heaters are seen in this image.
CAST-X 2500 in line heaters are available with stainless steel tubes, Inconel tubes and electropolished or passivated tube options for medical and sterile applications.
Machining options for CAST-X 2500 in line heaters can be found here.
Custom flowtubes can be ordered here for CAST-X 2500 in line heaters from Cast Aluminum Solutions.
Accessories for CAST-X 2500 in line heaters can be ordered using this table.