This valve is designed to handle fluid temperatures ranging from 35°F to 284°F (2°C to 140°C)

making it ideal for new construction

delivering a linear torque output across the full 90-degree rotation

Precision Refrigerant Flow: Utilizes scroll technology to ensure reliable refrigerant compression and peak thermal exchange

Manual Override Capability: The manual operator (MO suffix) provides critical control during electrical maintenance or emergency power loss

Mepco (Dunham Bush) S3654 Low Water Cut Off 320788-703 This valve is designed toThe Mepco (Dunham Bush) S3654 is a critical safety component designed for steam and hydronic boiler systems. This Low Water Cut Off (LWCO) utilizes a high precision float switch assembly to provide definitive protection against dry firing conditions. As a mechanical boiler safety control, the S3654 monitors the internal water line and serves as a primary limit control, interrupting the burner circuit immediately if levels drop below the safe