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US 2011/0214748 A1Published application
Systems and Methods for Purging a Valve in a Liquid Flow Line
OwnerKurt Sebbeninventor
Life of this patent
Estimating the term…
Abstract
A ball valve with a purging mechanism is used in a method that provides a fluid purge of the valve. The fluid purge may be accomplished by introducing fluid into a housing of the valve and allowing the fluid to pass through the valve and out through an outlet port. The fluid purge eliminates any residual matter from a liquid flow line. The fluid used for the purge is typically nitrogen or clean dry air (CDA).
Claims20
A valve comprising:
- a housing;
- a main body enclosed in the housing, and movable between a first position in which a throughway in the main body aligns with a liquid flow line in which the valve is installed, and a second position in which the main body blocks the liquid flow line;
- a handle that moves the main body between the first position and the second position;
- a purge inlet port;
- and
- a purge outlet port, the purge inlet port and the purge outlet port being in fluid communication with an interior of the housing.
3 more elements
A system for purging a valve in a liquid flow line, the system comprising:
- a valve that controls a flow rate through the liquid flow line;
- a purge inlet port;
- and
- a purge outlet port, wherein during a purging operation, a fluid is introduced into the purge inlet port, the fluid flowing through an interior of the valve and out through the purge outlet port to remove residual matter from the interior of the valve.
1 more element
A method for purging a valve in a liquid flow line, the method comprising:
- selecting a valve and installing the valve in the liquid flow line;
- operating the liquid flow line;
- and
- introducing a fluid into a purge inlet port, the fluid flowing through the purge inlet port into an interior of a valve housing, the fluid then flowing out through a purge outlet port, thereby removing residual matter from an interior of the valve.
1 more element
Dependencies are inferred from the claim text.