Human Immunodeficiency Virus, commonly known as HIV, is a virus that affects the immune system by destroying white blood cells known as CD4 cells. These cells are responsible for fighting disease.
Servovalve, Hydraulic-Description. A hydraulic servovalve is a servo (see Servo, Hydraulic â Description) with a device (either flapper nozzle or jet pipe) used to position the servo. The term electrohydraulic servovalve is often used because servovalves are controlled through an electrical signal.
The butterfly valve BVH is designed to adjust volumes of gas, cold and hot air, and flue gas on various appliances and flue gas lines. The butterfly valve BVH is used for processes that require very precise adjustment of the flow rate or low leakage.