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It is a stop valve placed on an auxiliary piece of equipment. Or it could be placed at the steam main to feed an auxiliary steam system (heating, auxiliary pumping. etc.). It is not the Main steam stop for the boiler or the prime mover (engine, turbine, process), it is for a secondary service.
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What is the application of boiler stop valve?
Stop Boiler Valve (or Crown Valve) is installed on an outlet line of a boiler. It's purpose is isolation of a boiler from a downstream steam line. Its position may be either open or close, it cannot be used for throttling of steam.
What is throttle pressure regulator of a steam turbine?
Essentially its the pressure prior to entering the turbine chamber via the MSV (main stop valve)
How do you disassemble a stop valve?
With a wrench carefully holding back on the valve body
Curb box, curb-stop box, curb-valve box, Buffalo box?
The "curb stop" is the valve that is on the service from the main into your house. i.e. The 8" main in the street has a saddle tap with your 3/4" service line on it. Within 8 ft of the connection between your service and the main is your curb stop. The curb stop is a valve buried underground. In order to open/close the valve a curb box is placed over the valve. It is essentially a metal tube that lets you open and close the curb stop.
What is a curb stop box?
A curb stop is the valve which the city or municipality has installed to turn the water service off and on to a building . Some private systems also have curb stops installed if there are multiple buildings on a common well or water service a curb stop box refers to the enclosure which houses the actual valve most curb stop boxes are not boxes at all but cast iron housings with a pipe that extends to the ground level with a removable cover the valve is accessed with a special wrench which is slid down the pipe and turns the valve off and on.
