Carrier 330819-401 Service Valve 318973-401 Built with a high-strength aluminum

Built with a high-strength aluminum body and a corrosion-resistant center spider

Key Benefits for Technicians: Optimized Superheat Control: The HC power assembly charge prevents hunting and maintains steady evaporator pressure across variable load conditions

verify the orifice size and secondary regulator settings according to the manufacturer's technical manual

you need a valve that won't fail under pressure

Carrier 330819-401 Service Valve 318973-401 Built with a high-strength aluminumThe Carrier 330819 401 is a genuine OEM Liquid Line Service Valve designed for HVAC refrigeration systems requiring a 3 8 inch connection. Engineered for Carrier, Bryant, and Payne residential and commercial units, this brass body valve facilitates critical maintenance by allowing technicians to isolate the refrigerant charge within the condenser during system evacuations or part replacements. Its robust construction ensures a reliable, leak proof