Description
Watson McDaniel PTL & PTR Series — Pneumatic Temperature Controllers (Used with Air Pilot)
The PTL & PTR Series are pneumatic temperature controllers designed for use with Watson McDaniel Air Pilots to automatically regulate steam temperature in HD Regulator systems. These controllers provide fast, accurate response and are ideal for hot water or steam temperature applications.
Product Overview
- PTL-E7: Direct-mount version with copper sensing bulb; mounts directly on tank or vessel.
- PTR-E8: Remote-mount version with hydraulically filled bulb and 4-ft capillary for remote sensing.
- Designed for smooth pneumatic modulation through the Air Pilot.
- Fast reaction to temperature change for stable control.
Specifications
- Sensing Bulb: Copper
- Temperature Range (PTL): 50–350 °F
- Temperature Range (PTR): 0–300 °F
Options & Accessories
- Copper Thermowell available for PTL or PTR (sold separately)
Note: These are accessories/options for Air Pilot systems and are not standalone control valves.