Modular valve assembly

A modular valve assembly comprising:

• a bonnetless main core comprising a main core housing having a main core inlet and a main core outlet, a first releasable connection proximate the main core inlet and a second releasable connection proximate the main core outlet;
• a first inlet end connection comprising a first inlet end connection housing and a first inlet end flow passage through the first inlet end connection housing, the first inlet end flow passage including a curved portion that changes a direction of the first inlet end flow passage between 30 and 120 degrees;
• a second inlet end connection comprising a second inlet end connection housing and a second inlet end flow passage through the second inlet end connection housing, the second inlet end flow passage being substantially straight, changing direction by less than 10 degrees;
• a first outlet end connection comprising a first outlet end connection housing and a first outlet end flow passage through the first outlet end connection housing, the first outlet end flow passage including an angled portion;
• a second outlet end connection comprising a second outlet end connection housing and a second outlet end flow passage through the second outlet end connection housing, the second outlet end passage being substantially straight, changing direction by less than 10 degrees,
• wherein when the first inlet end connection is releasably connected to the first releasable connection and the first outlet end connection is releasably connected to the second releasable connection, the first inlet end connection, the bonnetless main core, and the first outlet end connection form an in-line valve configuration, where a flow direction at an inlet of the first inlet end connection and a flow direction at an outlet of the first outlet end connection change direction by less than 10 degrees, and
• wherein when the second inlet end connection is releasably connected to the first releasable connection and the second outlet end connection is releasably connected to the second releasable connection, the second inlet end connection, the bonnetless main core, and the second outlet and connection form an angled valve configuration, wherein a flow direction at an inlet of the second inlet end connection and a flow direction at an outlet of the second end connection change by more than 45 degrees, and
• further comprising an auxiliary core, the auxiliary core comprising an auxiliary core housing having an auxiliary core inlet, a first auxiliary core outlet and a second auxiliary core outlet, the second auxiliary core outlet being releasably connected to the bonnetless main core inlet at the first releasable connection, thereby forming a 3-way valve configuration.