Siemens Building Technology 141-388 Ring Kit 321042-401 Superior Material Construction: Features a

Superior Material Construction: Features a stainless steel disc and cast iron body for enhanced corrosion resistance in water-cooled systems

this 1/8" NPT straight-pattern vent maintains system efficiency by continuously purging trapped air from radiators

This ASME Section IV certified safety device features an iron body construction and is factory-set at a 65 PSI relief setpoint to prevent catastrophic overpressure conditions in commercial and residential hydronic systems

is a heavy-duty LV-4 Direct Valve Mounted Thermostatic Operator engineered for precise hydronic temperature control

Siemens Building Technology 141-388 Ring Kit 321042-401 Superior Material Construction: Features aFor commercial service technicians and mechanical contractors maintaining HVACR pneumatic systems, the Siemens Building Technology 141 388 Ring Kit is the industry standard for securing 5 32 inch tubing. This Compression Ring Kit 100 PK provides a high volume solution for ensuring leak free connections in pneumatic thermostat installations and broader HVAC control systems. Engineered for a precise 5 32 inch fit, these Siemens 141 388 compression rings