The Danfoss HS3B28 28 mm 3‑Port Motorised Valve (part no. 087N6651) is a premium mid‑position motorised valve with a 28 mm external compression connection, dedicated actuator and paddle mechanism. Ideal for two‑zone heating setups or complex system balancing, it supports up to 0.7 bar differential pressure and is engineered for smooth integration and efficient control.