Watlow recently released the CAST-X 500 circulation heater. It is the newest and smallest heater in Watlow's CAST-X product line. This small, lightweight circulation heater is ideal for demanding gas and liquid applications, is safe and will not burn the fluids being heated.
The CAST-X 500 heater is suited for applications where fluid cleanliness is critical because the gas or liquid being heated never comes in contact with the heater. This is a performance requirement in the semiconductor, analytical and foodservice equipment industries. There are two main benefits that make the CAST-X 500 successful in various industrial applications:
- Where safety is an issue in the case of heating volatile materials, or in cases where a sensitive material is being heated or in cases where there is a phase change that could cause the heater to fail prematurely.
- Preheating fuels in cold weather
- Heating solvents
- Steam generation for ovens or for environmental chambers
- Vaporizing IPA for semiconductor application
- Vaporizing mixture of hydrogen peroxide and nitrogen for packaging sterilization
- Ink heating -- keeping ink from overheating and disassociating in ink jet applications for coding and commercial ink jet printing
- Where contamination is an issue, especially if there is a possibility that the heater will fail and contaminate the process or cause harm to the system such as:
- Heating water or oil for food and beverage
- Nitrogen heating in semiconductor applications for drying etc.
- Sample heating for analyzers
- Analytical fluid warming
- Dialysis machines
- Heat transfer systems
- DI water for cleaning contact lenses and medical instrument sterilization
The CAST-X 500 circulation heater is constructed of a helical coiled tube cast into an aluminum body with a replaceable cartridge heater installed in the center. The cartridge heater can be replaced with a higher or lower wattage unit as required for the application. The aluminum body serves as the heat transfer media between the cartridge heater and the coiled tube where fluid is being heated.
The unique construction of the heater allows it to be used where thermally sensitive materials are being heated, such as paints, resins and flammable materials. The aluminum mass acts as a "thermal flywheel" and ensures accurate temperature control of the fluid to prevent degradation.
The robust cast-in aluminum construction assures longer heater life and accurate temperature control, and the stainless steel fluid path assures compatibility with many different materials. The heater's non-welded construction provides high pressure operation up to 3000 psi, operates up to 177°C (350°F), minimizes potential leakage and self drains when mounted vertically. Its compact size reduces space needs in customers' equipment and assures quick response due to its low mass, making it a better overall thermal solution than oversized heat exchangers.
The other two members of the CAST-X family include the CAST-X 1000 and 2000. The CAST-X 1000 offers a maximum working fluid pressure of up to 1500 psi and process temperature up to 121°C (250° F). The CAST-X 2000 features a maximum working fluid pressure of 5000 psi and a process temperature of 93°C (200°F) to 260°C (500°F). Watlow is currently taking orders and shipping the CAST-X 1000 and 2000 in only one day.
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