A valve includes a body having a first end, a second end opposite the first end, and a throughbore extending from the first end to the second end along a central axis, a valve element positioned within the throughbore for selectably isolating fluid flow through the throughbore, a seal end cap including a flange and a neck, wherein the neck is inserted into the throughbore from the second end of the body to engage with the valve element, and a hub end cap including a mounting flange engaged with the flange of the seal end cap, wherein the flange of the seal end cap is engaged with the second end of the body whereby the flange of the seal end cap is compressed between the second end of the body and the mounting flange of seal end cap.

A ball valve adaptor assembly for connection to a ball valve cartridge and for connection to a valve actuator, wherein the adaptor comprises: an outlet connector, the outlet connector comprising an outlet connector plate and an outlet pipe, the outlet connector plate configured to connect to a housing outlet of the ball valve cartridge with the outlet pipe extending away from the housing outlet, and an inlet connector, the inlet connector comprising an inlet connector plate and an inlet pipe, the inlet connector plate configured to connect to a housing inlet of the ball valve cartridge with the inlet pipe extending away from the housing inlet, an actuator connector configured to reversibly connect to the outlet and inlet connector plates and configured to reversibly connect to the valve actuator, and wherein in use, when the outlet plate, inlet plate and actuator connector are connected, a cartridge cavity is formed between the outlet plate, inlet plate and the actuator connector, and wherein the cartridge cavity is configured to reversibly receive the ball valve cartridge.