Illinois 0036047 Thermostatic Trap

The Illinois 0036047 is a heavy-duty 3/4" thermostatic radiator steam trap engineered for high-efficiency condensate and air removal in low to medium pressure steam systems. Designed for Series G, GH, MG, and MGH applications, this trap utilizes a duplex phosphor bronze diaphragm that is highly sensitive to temperature changes within 3°F, ensuring rapid air venting and positive shut-off against live steam. The rugged brass construction features a hardened stainless steel valve and seat, providing superior resistance to erosion and wire-drawing. This thermostatic trap is a direct replacement for Illinois 3GHSW configurations and is compatible with angle, straightway, and corner body patterns. Technicians prefer this model for its ability to operate uniformly across wide pressure ranges and maintain performance under high vacuum conditions. By preventing steam loss while effectively discharging non-condensable gases, the 0036047 optimizes heat transfer in residential and commercial radiator circuits.

Key Benefits for Contractors

• Precision Air Venting: The sensitive phosphor bronze diaphragm ensures air is purged quickly, preventing cold spots in the radiator.
• High Durability: Standardized with a stainless steel valve and seat to extend the service life of the internal components compared to inferior alloys.
• Ease of Maintenance: Features a replaceable diaphragm and seat assembly, allowing for fast field repairs without removing the entire trap body from the piping.
• Versatile Application: Ideal for vapor heating systems and vacuum return lines requiring a reliable 3/4" NPT connection.

Common Questions

What is the maximum operating pressure for the Illinois 0036047?
This 3/4" radiator trap is specifically designed for standard low-pressure steam heating applications, typically operating effectively up to 25 PSI, though it maintains exceptional responsiveness in vacuum systems.

Can I use this trap to replace older Series G or MG Illinois traps?
Yes, the 0036047 is the designated replacement thermostatic element and assembly for the Illinois Series G, GH, MG, and MGH 3/4" traps, ensuring dimensional and functional compatibility.

Does this trap require a specific orientation?
While the internal thermostatic element is highly reliable, the trap body must be installed according to the specific configuration (Angle, Straightway, etc.) to ensure proper condensate drainage by gravity.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.