Model TV/HAT -Fluid Temperature Control Valve (With Tube Fittings)

Utilizing a thermostatic wax actuator, the TV/HAT (Tube Valve/Heat Actuated Trap) freeze protection valve responds only to fluid temperature to control a system. After condensate forms and cools to the valve’s set point, the valve modulates the flow to maintain a constant condensate discharge temperature. During start-up, the TV/HAT is wide open for rapid venting and initial heat-up and then will adjust based on fluid temperature. After shutdown, the valve is self-draining to eliminate freeze damage.

For heating of temperature-sensitive instruments or process fluids, the reduced temperature available for tracing simplifies operations and eliminates overheating problems. For other heat transfer fluids, the TV/HAT freeze protection valve maintains a constant discharge temperature, thus providing the benefits of accurate process temperature control and improved efficiency.

TV/HAT valves are ideal for use in conjunction with tracer tubing and tracing systems using pre-traced tubing bundles. These valves are optimal for replacing conventional steam traps on winterization tracing, instrument tracing, condensate return system freeze protection, tracing for processes under 150°F (65°C), and other applications requiring in-line flow control based on temperature.

• Exclusive self-actuating Thermoloid® blend wax thermal actuator
• Stainless steel body, fittings, spring, and plug
• Corrosion-resistant – long service life
• Compact, low mass for fast response
• Ram-type plug for tight reliable shutoff
• Operates in narrow temperature band
• Standard fittings are Parker A-LOK, but Swagelok are also available

• Self-operating – no external power source required
• Eliminates live steam losses
• Downstream actuator for greater sensitivity
• Unaffected by pressure variations
• Wide choice of set points
• Operates in any position
• Easy to install

• Sizes: ¹⁄₄”, ³⁄₈”, ¹⁄₂”
• Maximum Operating Pressure: 300 PSIG (20.7 BAR)
• Maximum Temperature: 150°F (66°C) over set-point limit 300°F (149°C)