TV/HAT

Operation

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.

Typical Applications

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.

TV-HAT Freeze Protection Valve

Design Features

  • 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

Benefits

  • 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

Ordering

PART NUMBER

DESCRIPTION

212 - 100X00 - XXX

1/4” TV/HAT-SS2

212 - 110X00 - XXX

1/4” TV/HAT-SS-SW3

213 - 100X00 - XXX

3/8” TV/HAT-SS2

213 - 110X00 - XXX

3/8” TV/HAT-SS-SW3

214 - 100X00 - XXX

1/2” TV/HAT-SS2

214 - 110X00 - XXX

1/2” TV/HAT-SS-SW3

212 - 201X00 - XXX

1/4” TV/HAT-XXX-S6-X

213 - 30000X - XXX

3/8” TV/HAT-XXX-S6-X

214 - 200X02 - XXX

1/2” TV/HAT-XXX-S6-X

Notes

  1. Full open temperatures “XXX” available: 040°F, 050°F, 055°F, 060°F, 065°F, 075°F, 085°F, 090°F, 095°F, 100°F, 105°F, 110°F, 120°F, 125°F, 130°F, 140°F, 150°F, 155°F, 160°F, 170°F, 180°F, 190°F and 200°F
    1. Closing temperature is typically 10°F above opening temperature.
  2. Standard fittings are Parker A-LOK.
  3. Swagelok fittings replace standard fittings.
  4. Replace singular “X” with 0 for EPDM body seals; 1 for Viton body seals. Other seals available, consult our team.
  5. Seal material compatibility:
    1. EPDM – air, water, steam, ketones, and synthetic hydraulic oils
    2. Viton – air, fuel, oil, gas, petroleum-based hydraulic oils
  6. Flow direction is reversed on valves that close over 210°F (98.9°C)

Specifications

  • Sizes: 14”, 38”, 12
  • Maximum Operating Pressure: 300 PSIG (20.7 BAR)
  • Maximum Temperature: 150°F (66°C) over set-point limit 300°F (149°C)

Resources

TV/HAT Product Sheet
TV/HAT Installation and Maintenance Instructions
Instrument and Process Temperature Control Brochure