
ThermaGuard Expandable Enclosures
- IP65 dust & water protection
- Fits 1, 2, or 3 instruments
- Rated to -60°F/-51.1°C


IP65 Protection Standard
Class 1 Division 2 Rating
T6 Hazardous Area Rating
Terrapin Industrial's Pneumatic Positioner Enclosures offer modular, expandable GRP housings and patent-pending heated liners designed to protect instrumentation in extreme cold and hazardous environments. Ideal for oil and gas, petrochemical, and process industries, they reduce installation time by 30% while maintaining reliable temperature control down to -60°F.


How do pneumatic positioners work?
Pneumatic positioners receive a control signal and supply air pressure to actuate a valve, ensuring precise positioning based on the signal input.
What is the difference between pneumatic positioner and electro-pneumatic positioner?
What are the different types of positioners?
What enclosure protection rating is required for pneumatic positioners outdoors?
Can positioner enclosures be used in hazardous locations?
What temperatures can ThermaGuard enclosures withstand?
Can positioner enclosures be installed without taking instruments offline?
Talk to our experts for custom solutions and tailored guidance.

Protects pneumatic positioners and field instruments in extreme cold and hazardous oil and gas environments.

Houses process control instruments in hazardous-area-rated enclosures for reliable petrochemical plant operations.

Maintains instrument functionality in sub-zero Arctic environments using heated enclosure liner technology.

Provides flexible, modular enclosure solutions for process instrumentation in chemical manufacturing facilities.
Talk to our experts for custom solutions and tailored guidance.



Our expandable enclosures install in stages or fully pre-assembled, eliminating schedule delays and reducing total installation cost by 30%.
ThermaGuard technology maintains over 75°F inside enclosures even in -60°F environments, safeguarding instruments in arctic conditions.
Patent-pending heated liner with a 30-year cable life expectancy outperforms traditional finned heaters rated for just 5 years, cutting maintenance costs significantly.
Submit your requirements and a Terrapin Industrial expert will respond promptly with tailored recommendations and pricing.
For immediate assistance, feel free to give us a direct call at (281)-615-1429 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at (281)-615-1429 You can also send us a quick email at