An inspection of input voltage vs flow rate properties of a hydraulic servo valve Im impressing a triangular wave (frequency 0.01Hz amplitude +-10v) and plotting voltage and flow on an X Y graph.

A full bore (or full port) valve is one where the hole in the ball is equal in diameter to the hole in the pipe.

Explain the usage of the adjustable port valves? By adjusting the port size, we can change the valve capacity, To restrict the flow (when fully open) to a very low level, do we need a restrict orifice

A trim 12 valve cannot by nature meet that spec, and therefore they should have ordered something else.

Expanding conduit Gate Valves for the well section and some vendors quoted metal seats some quoted r-ptfe seats.

I am wondering if it is accepted practice to cut a RTJ into a RF flange. I have 2 only 6 inch 1500 ANSI RF pipeline valves for NACE 0175 applicable service.

I have a double acting valve that would increase effective port area by about 50% in a stationary biogas engine.

We have a bit of a pet project. We are looking for a high cycle valve. Right now we can only really hink of a cam driven full rotation valve.