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Giffard steam water injector (B-needle valve).A needle valve.
A needle valve is a type of valve with a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only capable of relatively low flow rates.
A needlevalve is a type of valve with a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally...
flow. Such valves have been called by various names such as regulating, throttling, metering, or needlevalves. For example, needlevalves have elongated...
leak-tight seal when shut. Ball valve Butterfly valve Control valve Diaphragm valve Gate valveNeedlevalve Pinch valve McGraw-Hill Dictionary of Scientific...
A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration...
Needle valve Dave Needle (1947–2016), American engineer Sharon Needles (born 1981), American drag queen Needle Rocks, Tasmania, Australia The Needle, Orkney...
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to...
ensure the needlevalve is fully closed. The main valve on the cylinder is then opened, followed by the regulator valve. Next, the needlevalve is opened...
A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise...
to a needlevalve which regulates the fuel entering the chamber. As the flowrate of the air in the chamber (controlled by the throttling valve/butterfly...
Increasing the amount of fuel gas flow through the tube by opening the needlevalve will increase the size of the flame. However, unless the airflow is adjusted...
A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is different...
pressure constant. The valve is often described as a needlevalve, although this is a misnomer. A true needlevalve uses a tapered needle in a tapered seat...
carburetor float that is not closing the fuel inlet needlevalve, or debris caught in the needlevalve preventing it from sealing. Liquids inside an internal...
pressure. A memristor is a needlevalve operated by a flow meter. As water flows through in the forward direction, the needlevalve restricts flow more; as...
fluid pressure from forcing open the valve. If no brake is installed, the actuator gets activated to reclose the valve, which is slowly forced open again...
medical instruments. It consists of a connection to a gas source, a needlevalve opened and closed by turning an attached dial for control of flow rate...
identifiers), including: Valves and their types and identifications (e.g. isolation, shutoff, relief and safety valves, valve interlocks) Control inputs...
throttling is not required they have a simple venturi with a spraybar and needlevalve. The carburetor can either be sliding or rotary. On a rotary carburetor...
(the flush valve seat) by water pressure. The user pushes a lever to flush the toilet, which lifts the flush valve from the valve seat. The valve then floats...
surrounding environment. Fixed cone valves are able to handle heads up to 300 m. Hollow jet valves are a type of needlevalve used for floodgate discharge....
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