Foot one-way valves are devices which allow to come the seamless integration direction. This variety of foot check valves are generally placed at the lower end of suction pipe of pump to avoid the suction pipe from emptying while the pump is stop. Consequently when the pump is first started it simply lacks have to exhaust the air drawn from the suction pipe therefore that prompt starting belonging to the pump is secured. Parent / basic constructed using premium cast iron s. Corrosion-resistant metal, Cast metal, G. Iron type of construction flanged end / screwed end, Lift / swing type disc foot quality guideline is 4038, Is 10805 general fluid application clear chemical etc, Water gas end flange, Air oil standard is With a value of 1538, The figure is 6392, Categorized as bs 10 ansi b 16. 1, Ansi b 16. 5, Bs 4504, Awwa c 207, Or any additional selection relevant specification std. Type of disc single disc swing double disc, And lift swing and lift. Manufacturing range of size nb spanning 25 mm to 450 mm rating pn 2 pieces, Pn, 4 pieces, Pn, 6 items along with pn, A total of 10 straining area at least equal to 2. 5 times of the nominal bore area.