Abstract: A flow control apparatus and method for operating the apparatus are disclosed. The flow control apparatus comprises a main supply line, a first valve, a first pressure transducer, a rotary meter, a control line, an intermediate valve, a second pressure transducer, a second valve, and a digital controller. The digital controller executes the program for operating the flow control apparatus. The program permits monitoring and regulating the amount of fluid passing through the flow control apparatus. Additionally, leaks in the flow control apparatus can be detected by the program, prompting automatic shut down of the apparatus if desired. Further, the apparatus may terminate flow through predetermined set points, such as volume and time maximums.

Abstract: A flow control apparatus and method for operating the apparatus are disclosed. The flow control apparatus comprises a main supply line, a first valve, a first pressure transducer, a rotary meter, a control line, an intermediate valve, a second pressure transducer, a second valve, and a digital controller. The digital controller executes the program for operating the flow control apparatus. The program permits monitoring and regulating the amount of fluid passing through the flow control apparatus. Additionally, leaks in the flow control apparatus can be detected by the program, prompting automatic shut down of the apparatus if desired. Further, the apparatus may terminate flow through predetermined set points, such as volume and time maximums.

Abstract: A mechanical automatic fluid consumption limiting apparatus for limiting flow through a primary flow line includes an actuating line, a control line, a rotary meter, a control assembly, an actuating valve, a diaphragm valve on the primary line, an eductor and an engagement controller. The actuating valve, initially spring-biased to a non-actuating position, is rotated to an actuating position effecting closure of the diaphragm valve responsive to a predetermined quantity of flow through the rotary meter and mechanical response of the control assembly. An eductor diaphragm is positioned within the eductor responsive to flow through the primary line and pressure from the actuating line. The engagement controller is connected to the eductor diaphragm. The control line by-passes the diaphragm valve to provide pressure within the eductor to re-position the eductor diaphragm after closure of the diaphragm valve.