Q & A > Question Details
Why is the non return valve fitted on the horizontal pipe line rather than the vertical one?
24/01/2009 A: Ravi shankar, HPCL, prskreddy@hpcl.co.in
Because the flapper of normal NRV may get struck in open position.
16/11/2008 A: Muhammad Muzaffar Malik Sarfaraz Ahmed Malik, BPPL, muzaffar_malik1@yahoo.com
There is only one type of NRV that is installed on the vertical pipe line i.e spring loaded.