Abstract: A method of making a modular valve assembly. A first housing member and a second housing member are provided, and the first housing member is joined to the second housing member to form a unitary housing. A valve component opening is formed in the unitary housing, and the valve component opening is sized to receive a valve component. An inlet passageway is formed in the unitary housing. The inlet passageway communicates that the valve component opening. An outlet passageway is formed in the unitary housing. The outlet passageway communicates with the valve. component opening. A valve component is placed in the valve component opening.

Abstract: A pressure relief valve with a stop disposed thereon to ensure components of the pressure relief valve are properly aligned and tightened properly. This allows the components and pressure relief valve to be properly installed and the pressure relief valve to function properly. The stop feature also reduces the time of installation and amount of labor needed to install pressure relief valves and their components.

Abstract: A manifold that allows replaceable pressure relief components to be installed and replaced without requiring a system shut down. The manifold allows two pressure relief valves to be installed in separate pressure relief ports. The manifold also includes a valve switch that isolates each valve independently, while allowing the system to remain in operation. For example, in a first position, the manifold directs fluid flow to a first pressure relief valve, while a second pressure relief valve is isolated.

Abstract: A manifold that allows replaceable pressure relief components to be installed and replaced without requiring a system shut down. The manifold allows two pressure relief valves to be installed in separate pressure relief ports. The manifold also includes a valve switch that isolates each valve independently, while allowing the system to remain in operation. For example, in a first position, the manifold directs fluid flow to a first pressure relief valve, while a second pressure relief valve is isolated.

Abstract: A pressure relief valve with a stop disposed thereon to ensure components of the pressure relief valve are properly aligned and tightened properly. This allows the components and pressure relief valve to be properly installed and the pressure relief valve to function properly. The stop feature also reduces the time of installation and amount of labor needed to install pressure relief valves and their components.