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Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
Note that prior to the Fischertechnik "C" line (1976?), the starter sets didn't have as many parts, and neither did their add-on kits (50/1, 50/2, 50/3). Because the older manuals lack copyright dates or official line designations, it is difficult to distinguish sets without in-depth knowledge of what was actually in the box for each line and set.
A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure , temperature , and liquid level.
One example of servo valve use is in blow molding where the servo valve controls the wall thickness of extruded plastic making up the bottle or container by use of a deformable die. [9] The mechanical feedback has been replaced by an electric feedback with a position transducer. Integrated electronics close the position loop for the spool.
Ordinary valves can have many ports and fluid paths. A 2-way valve, for example, has 2 ports; if the valve is open, then the two ports are connected and fluid may flow between the ports; if the valve is closed, then ports are isolated. If the valve is open when the solenoid is not energized, then the valve is termed normally open (N.O.).
Morgan Ortagus, a Donald Trump critic turned supporter, will serve as his deputy special envoy for Middle East peace.
Neither the United States nor China would win a trade war, the Chinese Embassy in Washington said on Monday, after U.S. President-elect Donald Trump threatened to slap an additional 10% tariff on ...
The Moxie AI robot cost $800 and was marketed to parents to help teach children social skills. The company sent customers an email in late November announcing it would be shutting down.
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