This suction line valve utilizes a 5/8" x 5/8" connection

Where should the 87N53 be installed

this thermoplastic-insulated wire delivers the flexibility and environmental resistance necessary for professional-grade results

general-purpose liquid flow switch designed for HVAC and industrial hydronic systems

though flow direction must follow the arrows indicated on the valve body for equal percentage flow accuracy

Utica-Dunkirk 550004160 Control Module 320735-701 This suction line valve utilizesThe Utica Dunkirk 550004160 Hydrolevel Control Module is a critical OEM boiler replacement part engineered for precise low water cut off (LWCO) and temperature management in hydronic heating systems. As a technician, you know that maintaining proper water levels is non negotiable for heat exchanger integrity; this module utilizes Hydrolevel technology to provide active monitoring and prevent dry fire conditions. Designed specifically for compatibility