### How do you calculate pressure drop across a filter?

· Herein, how do you calculate pressure drop across a strainer? The pressure loss across a strainer can be calculated using the system's flow rate and the Cv factor for that example, a 1" Model 72 simplex strainer with a perforated basket has a Cv factor of In water service with a 30 gpm flow rate, it will have a psi pressure drop (30 ÷ )2 =