The orifice meter is a device used for measuring the discharge of the liquid flowing through pipe. It works on the same principle as that of venturi meter.
What is Orifice ?
Orifice is a small opening in the wall or base of vessel through which the fluid flows. a mouthpiece is an attachment in the form of a small tube or pipe fixed to the orifice . Its length is usually two to three times the diameter of orifice. It is used to increase the amount of discharge.