US 12,605,579 B2 · Test and drain valve with integrated relief valve

Abstract

A test valve including a body, a test assembly, a relief assembly, and a drain assembly. The body includes an inlet, an outlet, an internal wall isolating the inlet from the outlet, and a drain opening, a relief opening, and a test opening defined by the internal wall and structured to facilitate fluid communication between the inlet and the outlet. The test assembly is structured to seal and unseal the test opening to selectively fluidly couple the inlet and the outlet. The relief assembly is structured to seal and unseal the relief opening to selectively fluidly couple the inlet and the outlet. The drain assembly is structure to seal and unseal the drain opening to selectively fluidly couple the inlet and the outlet.

Claims20

Dependent claims

A test valve, comprising:

a body comprising:
an inlet;
an outlet;
an interior wall isolating the inlet from the outlet;
and
a drain opening, a relief opening, and a test opening each defined by the interior wall to facilitate fluid communication between the inlet and the outlet;
a test assembly having an unactuated position to seal the test opening to block the inlet from the outlet and an actuated position to unseal the test opening to selectively fluidly couple the inlet with the outlet;
a relief assembly to seal and unseal the relief opening to selectively fluidly couple the inlet and the outlet;
and
a drain assembly to seal and unseal the drain opening to selectively fluidly couple the inlet and the outlet.

7 more elements

A fire suppression system comprising:

a pipe;
and
a test valve coupled with the pipe, comprising:
a body comprising an inlet, an outlet, an interior wall separating the inlet from the outlet, and at least one of a drain opening, a relief opening, and a test opening each defined by the interior wall to facilitate fluid communication between the inlet and the outlet;
a test assembly having an unactuated position to seal the test opening to block the inlet from the outlet and an actuated position to unseal the test opening to selectively fluidly couple the inlet and the outlet;
a relief assembly to seal and unseal the relief opening to selectively fluidly couple the inlet and the outlet;
and
a drain assembly to seal and unseal the drain opening to selectively fluidly couple the inlet and the outlet.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/921,032Filed 16 Jul 2021 · us provisional application

Priority

17 Jul 2020

Published

US 2023/0166145 A11 Jun 2023

Granted

21 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

A62C 35/68
Pipe-line systems: details, e.g. of pipes or valve systems
A62C 35/62
Pipe-line systems: dry, i.e. empty of extinguishing material when not in use
A62C 37/50
Control of fire-fighting equipment: testing or indicating devices for determining the state of readiness of the equipment
F16K 17/048
Spring-loaded: combined with other safety valves, or with pressure control devices

Test and drain valve with integrated relief valve

Life of this patent

Test and drain valve with integrated relief valve

Life of this patent

Abstract

Claims20