Abstract: An elbow fitting including an elbow body having an inlet, an outlet and an internal flow path formed therein. The inlet is in fluid communication with the outlet via the flow path. The elbow body, the inlet and the outlet together form a unitary workpiece. The unitary workpiece has a dead weight in a range between about 350 lbs and about 1,400 lbs. The inlet and the outlet each have an internal diameter of not less than about 7 inches. The elbow body is further capable of retaining an internal pressure of at least about 10,000 psi. The flow path may further include an enlarged chamber also formed within the elbow body. The enlarged chamber may be generally spherically shaped. An enclosed portion may be in fluid communication with the enlarged chamber.

Abstract: A flow valve assembly includes a valve operable between an open position and a closed position and a controller operatively coupled to the valve to operate the valve between the open position and the closed position. A mechanically or electrically operated assembly is provided to determine an amount of fluid flow through the valve when the valve is in the open position. A mechanically or electrically operated mechanism moves the valve from the open position to the closed position when the amount of fluid flow exceeds a predetermined value. A method of operating the valve is also provided.

Abstract: A flow valve assembly includes a valve operable between an open position and a closed position and a controller operatively coupled to the valve to operate the valve between the open position and the closed position. A mechanically or electrically operated assembly is provided to determine an amount of fluid flow through the valve when the valve is in the open position. A mechanically or electrically operated mechanism moves the valve from the open position to the closed position when the amount of fluid flow exceeds a predetermined value. A method of operating the valve is also provided.