if the knob is in line with the pipe it is on. if it is perpendicular to the pipe it is off. if the knob is made like the one on a water spigot with no indicator then all the way out is on and all the way in is closed.
Need to replace diaphragm an piston under large chrome cap on top. Repair kit can be purchased at most any plumbing supply house, you will need to tell them if it is for a urinal or a water closet . Be sure to turn off water supply before repairing, screwdriver stop slot located under small cap on right or left of main valve
The position of the handle indicates the direction of the opening through the ball, IE. handle in line with pipe, valve is open, tangent to pipe, valve is closed.
This can very greatly from computer to computer. You will have to open the case of your computer to tell.
You can tell a bad valve by doing a compression test.
no you cant
Modulating Valve ???? If you can tell me what system this valve would be in I can tell you the correct name for it and its location. example IPR valve in the high pressure oil system.
The intake valve is bigger.
The intake valve is bigger.
Noisy valve train. Remove the valve cover and inspect the valve train.
You tell me that is why I'm asking
You can tell when a manifold tuning valve is bad when oil is leaking through it. You also can tell by inserting the dipstick into the valve and seeing if oil comes out through the dipstick.
A tell tale on a relief valve is a small opening or connection that allows excess fluid to escape when the relief valve opens. It is used to visually indicate when the relief valve is relieving pressure and discharging fluid. Tell tales are important for monitoring the performance and functionality of relief valves in a system.