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US 11,898,643 B1Granted
Dual union ball drain valve with T-flow adjustability
AssigneeNIBCO Inc.
InventorChristopher W. Mason
Life of this patent
Estimating the term…
Abstract
A dual union drain valve has union couplings to permit a variety of fitting ends. The dual union drain valve has a T-valve member at the intersection of the tee-shaped valve body that can be rotated within the fluid passageway to provide a variety of options for selectively closing sections of the fluid passageway.
Claims20
A dual union drain valve, comprising:
- a tee-shaped valve body having a fluid passageway between a first port, a second port disposed opposite said first port, and a third port, said third port disposed perpendicular to said first and second ports;
- a first valve assembly disposed at the intersection in said tee-shaped valve body, said first valve assembly including a ball with three openings that can be positioned within the fluid passageway, said ball coupled to a stem having a T symbol that corresponds to the three openings such that the side of the ball that has no fluid passageway opening is in alignment with the flat top of the T symbol;
- a removable handle coupled to said stem;
- at least one handle stop located on said valve body;
- a second valve assembly disposed adjacent to said third port;
- a first fitting with a first union coupling having an internal threaded surface that couples with an external threaded surface on said first port;
- and
- a second fitting with a second union coupling having an internal threaded surface that couples with an external threaded surface on said second port.
5 more elements
A dual union valve, comprising:
- a tee-shaped valve body having a fluid passageway between a first port, a second port disposed opposite said first port, and a third port, said third port disposed perpendicular to said first and second ports;
- a first valve assembly disposed at the intersection in said tee-shaped valve body, said first valve assembly including a ball with three openings that can be positioned within the fluid passageway, said ball coupled to a stem having a T symbol that corresponds to the three openings such that the side of the ball that has no fluid passageway opening is in alignment with the flat top of the T symbol;
- a removable handle coupled to said stem;
- at least one handle stop located on said valve body, permitting the handle to rotate within a 90 degree range;
- a first fitting with a first union coupling having an internal threaded surface that couples with an external threaded surface on said first port;
- and
- a second fitting with a second union coupling having an internal threaded surface that couples with an external threaded surface on said second port.
4 more elements
A dual union drain valve, comprising:
- a tee-shaped valve body having a fluid passageway between a first port, a second port disposed opposite said first port, and a third port, said third port with a threaded external surface disposed perpendicular to said first and second ports;
- a first valve assembly disposed at the intersection in said tee-shaped valve body, said first valve assembly including a ball with three openings that can be positioned within the fluid passageway, said ball coupled to a stem having a T symbol that corresponds to the three openings such that the side of the ball that has no fluid passageway opening is in alignment with the flat top of the T symbol;
- a removable handle coupled to said ball, said removable handle permitting the rotation of said ball and said stem within said intersection when said handle is removed;
- a second valve assembly disposed adjacent to said third port;
- a first fitting with a first union coupling having an internal threaded surface that couples with an external threaded surface on said first port;
- and
- a second fitting with a second union coupling having an internal threaded surface that couples with an external threaded surface on said second port.
4 more elements
Dependencies are inferred from the claim text.