The Bell & Gossett® snap zone valve is a compact four-wire thermoelectrically operated on-off zone valve designed for heating and cooling systems. Featuring an innovative compact design and an adapter ...

Heart valves help ensure that blood flows steadily in the right direction without backward leakage. If a person has a heart valve disorder, their valves do not work as they should. This may be due to ...

In hydronic heating, to control where heated water goes to various sections of a building, the system might rely on two or more zone valves. A zone valve opens or closes based on demand from a ...