MADE IN USA. The EVKeg is a safe, durable polyethylene beer keg (150 PSI capability) that has the unique features of using an ozone sanitized liner that is replaced with every fill eliminating the need for keg cleaning, and a self setting pressure relief valve that prevents the keg from accidental over pressurization.
Orifices are generally used as measuring and hydraulic control devices. Orifice. hydraulics control the function of many submerged inlet - free outlet culverts, primary spillways in detention facilities, manholes in conduit flow, and in storm drain.
Reversing the orifice plate will give an incorrect measurement. The orifice plate is actually a highly machined component. Its dimensions must adhere to certain specifications. If the plate is damaged in any way in or around the hole, it can no longer measure gas rates with any accuracy, and it must be replaced.