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 ...

The four valves of the heart allow blood to flow through the heart in the right direction. The valves open or close each time the heart beats. Problems with the heart valves can lead to palpitations, ...

Motion-control valves solve troublesome equipment-instability problems. • Overcenter, or motion-control valves, are well suited for load holding and control. • Standard overcenter valves can solve the ...