1. Nominal working pressure:PN16 2. backwash function 3. with high quality valve and ... is an indispensably auxiliary device. Main technical performance 1. Working pressure (MPa): 0.6, 1.0, 1.6, 2.5, 4 ... . Screw standard of limber hole:type Y filter: M27×1.5(M30×2.5 for high pressure)type U filter M16×2, welding ...