Surgery is usually the best fix for a severe heart valve disease. Different types of heart valve blockages can happen, and surgery is necessary to fix these problems. Your heart is split into four ...

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 ...

A leaky heart valve means blood isn’t moving correctly through one of the heart’s four valves. This can cause complications like heart rhythm disturbances and heart failure. But treatment is usually ...

Valvular heart disease, also called heart valve disease, occurs when you have a diseased or damaged heart valve. When your heart pumps blood, your valves open and close to keep blood flowing in the ...

Equipment for gas chromatography, liquid chromatography and mass spectrometry is complex, with multiple subsystems that control the flow of sample analyte, carrier gas and solvent fluids. The ...

The mitral valve is a flap of tissue that sits in the left side of the heart, between the left atrium and the left ventricle. It keeps blood flowing in the forward direction, from the atrium into the ...

Women can be more prone than men are to certain types of heart valve problems. The human heart has many different valves that ...

Not all valves are the same. For PEX piping systems, whether plumbing or hydronic heating and cooling, the type of valve you specify and install can actually impact system quality and performance.

Like so many of the core technologies integral to automated industrial operations—such as motors, drives, and I/O—valves don’t always receive the attention they deserve in the automation arena.