Success hydroparts manufacturesoffers direct operated check valves, type nrd. These check valves are available in different sizes 6, 8, 10, 15, 20, 25 and 30; pressure315 bar; and flow450 lpm [max]. Some of the general features it hasgeneral features: line mounted check valve with bsp connection; allows the flow in one direction, reverse flow is leak free closed; and cracking pressure from 0 bar to 5 bar as per model. A list of functions of the check valve is as followsfunctional description: type nrd valve is normally closed valve, as puppet is seating on valve seat, flow b to a is checked and restricted however flow from a to b is open.Springless valve, with 0 [zero] cracking pressure has to be vertically mounted, keeping a at the bottom and b at the top. The thread size bsp [a/f] is: ¼ [19], 3/8 [24], ½ [30] ¾ [36], 1 [46], 1-1/4 [60] and 1-1/2 [65].
