Series 60
AMBIENTEMP Valves
A powerful wax-filled thermostat senses the ambient temperature and opens or closes the valve automatically, so steam tracing runs only when it's needed.
- Max pressure
- 250 psi (17 bar)
- Max temperature
- 450 °F (232 °C)
- Flow
- Cv 4.5
- Sizes
- 1⁄2" and 3⁄4" NPT

Applications
- Winterization steam tracing control
- Process pipe and tank temperature control
- Unit heater temperature control
Operating principle
A powerful wax-filled thermostat senses the ambient temperature around the thermostat and controls the opening and closing of the valve.
Design features
- All stainless steel valve
- Stroke indicator
- Easy manual override
- One-step renewal; no loose parts
- Compact size and weight
- Sunshield for thermostat available
- Mounting bracket for process pipe temperature control available
Temperature ranges and flow
- Standard 35/45 °F (2/7 °C) for winterization steam tracing control
- Other temperature ranges available for process tracing or unit heater control applications
Cv of 4.5, measured at the lower (full open) temperature of the specified temperature range.
Dimensions, weights and materials

| Dimension | in (mm) |
|---|---|
| “A” | 3 1⁄4 (83) |
| “B” | 10 1⁄8 (257) |
| “C” | 11 1⁄8 (283) |
| Size | Weight lb (kg) |
|---|---|
| 1⁄2" | 3.75 (1.70) |
| 1⁄4" | 3.2 (1.65) |
| Component | Material |
|---|---|
| Body and bonnet | Stainless steel |
| Thermostat | Brass |
| Valve and packing | TFE |
| Seat, spring and other internal parts | Stainless steel |
Installation
- Install the AMBIENTEMP Valve sideways with the bonnet in a horizontal position.
- Keep the thermostat away from heat sources such as steam lines or process equipment.
- Install unions and isolating valves on both sides of the AMBIENTEMP Valve.
- Install a strainer at the valve inlet.