A measure of the flow rate of a fluid through a calibrated funnel. A Marsh funnel is typically used to measure drilling fluid and slurry viscosity, in seconds per quart (sec/qt) of fluid. The Marsh funnel viscosity of water is 26 seconds per quart.
See Casing PusherThe front section of a boring machine that distributes the thrusting force of the hydraulic cylinders to the casing and forms the outside of the spoil ejector system..
The rear most track section.
The largest jacking force that can be applied to the jacked pipe, allowing for an appropriate factor of safety.
The highest working pressure expected and designed for during the service-life of the main.