Spirax Sarco RTH-125 1/2" Straight Thermostatic Steam Trap

The Spirax Sarco RTH-125 1/2" Straight Thermostatic Steam Trap is designed for efficient air and condensate removal in low-pressure steam heating systems. Its thermostatic operation automatically vents air and non-condensable gases during startup and closes when steam reaches the trap, helping prevent live steam loss and improve overall system efficiency.

Featuring a straight-body design, the RTH-125 is ideal for inline radiator and steam heating installations requiring a direct connection configuration. Built for dependable performance, this thermostatic steam trap helps maintain balanced heating, reduce energy waste, and provide reliable service in residential, commercial, and institutional steam systems.

Features

• 1/2" NPT threaded connections
• Straight-body design for inline installations
• Thermostatic operation automatically removes air and condensate
• Prevents live steam loss for improved energy efficiency
• Helps maintain consistent radiator heating performance
• Compact design for easy installation
• Reliable operation in low-pressure steam heating applications

Specifications

• Brand: Spirax Sarco
• Model: RTH-125
• Product Type: Steam Trap
• Condition: New
• Trap Type: Thermostatic Radiator Trap
• Connection Size: 1/2"
• Connection Type: NPT Threaded
• Body Pattern: Straight
• Application: Low-pressure steam radiator and heating systems