Hi,
I came across statement for small size (1") piping in vendor catalog that 'Use of Tubing for needle valve helps to keep the value of the needle valve '.Trying to search, if anybody knows reference , please share.
Thanks.
My country side relative has 3 phase borewell pumps (5 hp, borewell depth 700 ft) in country side place in maharashtra, India, which gets burned often.
This causes huge problem for water supply/maintenance execution etc . There not good facilty to take out pump(heavy manual work) & check, hence...