Fluid Delivery Heaters

Syringe Heaters (Extended Capabilities)

The syringe heater from Watlow was developed for the unique needs of medical injection applications. The heated syringe provides a heated fluid and drug delivery solution that maximizes patient comfort while reducing risk. The versatile Watlow heated syringe system produces consistent results by reducing temperature and viscosity variations.

Heater configurations include silicone/wire or polycarbonate/foil configurations to deliver flexibility and convenience. Both heater forms are designed to "snap" on to the syringe with one hand and hold firmly during the procedure.

The polycarbonate/foil configuration is constructed using a clear polycarbonate laminate, which allows technicians to view fluid levels and monitor for air bubbles. Smooth outer surfaces and a radius on all inside corners facilitate cleaning. The syringe heaters also house an overmold containing an electronic controller and/or sensor to deliver years of accurate, trouble free service and warm solutions to precise specifications. Redundant controller may also be incorporated if required.

FREEFLEX Heated Tubing (Extended Capabilities)

FREEFLEX heated tubing from Watlow provides a flexible heat-up and transport system for moving fluids in tubing as small as 1⁄32 in. (0.8 mm) inside diameter. These heated tube assemblies are made from polymeric tubing. FREEFLEX heated tubing heats fluids up to 212°F (100°C) and maintains temperature during transfer from a reservoir to a point of use. In some applications, the heated tubing can actually serve as the reservoir for limited volumes of fluid, helping to reduce start-up times. For higher temperatures contact your Watlow representative.

Watlow's innovative design places the heating element and sensor directly in contact with the perimeter of the tube to produce efficient, responsive heating and temperature control of the tube contents. The element is evenly wound to ensure reliable, close contact for uniform heating along a portion or the entire length of the line.

FLUENT® In-Line Heater

Watlow’s new FLUENT in-line heater is a small, lightweight, high-performance heater that can replace both a traditional immersion type heater or a heater wrapped around a tube as part of a thermal system. Watlow’s FLUENT heater is designed as an integrated solution that replaces multiple components in a system. This heater design reduces overall system cost and complexity. Because of its high watt density, it offers ultra-fast response leading to higher system performance.

Featuring Watlow’s patented thermal spray technology, the heater makes use of its entire surface to produce heat, which optimizes heat transfer and temperature uniformity

Cast Aluminium Circulation Heaters


CAS’s family of heaters are ideal solutions for demanding applications. These heaters consist of a helical coiled tube and tubular element cast into an aluminum body. The aluminum body serves as the heat transfer media between the tubular element and the coiled fluid or gas transfer tube. The unique construction of the heater allows it to be used where thermally sensitive materials such as paints and resins or flammable materials such as fuels and solvents are being heated.