Steam Tracing and Freeze Protection Control
The TV/SC-A helps protect piping, instrumentation, and enclosure systems from freezing by supplying heat or other compatible media only when needed. The valve can control steam, air, gas, and liquids compatible with Teflon® and stainless steel, providing a versatile solution for temperature-based control.
By reducing unnecessary steam and media flow, the TV/SC-A helps eliminate waste and lower operating costs associated with continuous heating and manual winterization.
For applications that require sensing process or pipe surface temperature instead of ambient conditions, see the TV/US-X Steam Tracing Control Valve with Tube Fittings.
Design Features
- Exclusive Thermoloid® wax thermal actuator
- Stainless-steel body, fittings, and plugs
- Compact, low mass – fast response
- Corrosion-resistant – long service life
- Ram-type plug for tight reliable shutoff
- Wide choice of set points available
- Large flow coefficient (Cv)
- Unaffected by pressure variations
Typical Applications
The compact and self-contained TV/SC-A valve can be used in countless of applications including:
- Steam tracing systems
- Freeze protection for piping and instrumentation
- Instrument enclosure temperature control and analyzer shelters
- Outdoor or exposed process equipment
- Pneumatically operated antifreeze injection systems
Technical Documents
- Data Sheet
- Installation and Maintenance Instructions
- Instrument and Process Temperature Control Brochure
- CAD Files and Drawings
Additional Resources
Specifications
- Sizes: 3⁄8”, ½”
- Maximum Operating Pressure: 200 PSIG (13.8 bar)
- Maximum Valve End Temp: 388°F (198°C)
- Maximum Sensing End Temp: Range 150ºF (83.3ºC) over set point with a limit of 300ºF (149ºC)
Ordering
| Part Number | Description |
|---|---|
| 713 – 0X1000 – XXX | 3/8” TV/SC-A |
| 714 – 0X1000 – XXX | 1/2” TV/SC-A |
Ordering & Configuration Notes
- Full open temperatures “XXX” available: 035°F, 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.
- Closing temperature is typically 10°F above opening temperature.
- Standard fittings are Parker A-LOK, but Swagelok are available. The first 0 indicates the fittings.
- 0 = Parker fittings
- 1 = Swagelok
How the TV/SC-A Valve Works
The TV/SC-A uses a thermostatic actuator that is thermally isolated from the valve body to sense surrounding air temperature. When ambient temperature falls to the valve’s set point, the valve opens to allow the selected media to flow. As ambient temperature rises, the valve modulates toward the closed position, reducing flow once heat or freeze protection is no longer required.
