Resilient material construction resists compression set and environmental degradation over long-term operation

The Multi-Function Technology allows the actuator to be programmed using the Belimo PC-Tool or ZTH US hand-held device to match specific 4-20mA or PWM control requirements

verifying the minimum 1 PSI pressure differential is critical to ensuring the piloted diaphragm actuates correctly without sticking or chatter

provided the bore size and belt profile match

Using a 24-inch fan blade with an incorrect pitch can overload the condenser motor (higher amp draw) or provide insufficient airflow

Hydrotherm BM-3318 Pilot Tube 321142-301 Resilient material construction resists compressionThe Hydrotherm BM 3318 Pilot Tube is a mission critical OEM replacement part designed for standing pilot assemblies in high efficiency Hydrotherm boilers and commercial heating units. Constructed from heavy duty brass or stainless steel, this 12 inch gas pilot line ensures a steady, regulated fuel flow to the pilot burner, maintaining the precise pilot flame signal required for reliable main burner ignition. Engineered to withstand high pressure