Thechnical data: Size 6 8 10 12 16 20 25 30 40 Working pressure (Mpa) 35 35 35 35 35 35 35 35 35 Flow rate (L/min.) 16 24 35 45 60 100 150 210 375 DV , DRV (Inch) G1/8" G1/4" G3/8" G1/2" G3/4" G1" G1 1 /2" G1 1 /4" G2" DV, DRV (Metric) M10 X 1 M14 X 1.5 M18 X 1.5 M22X1.5 M27 X 2 M33 X 2 M42 X 2 M48 X 2 M60 X 2 Opening pressure for check valve 0.05MPa Pipeline type panel connection M16 X 1.5 M18 X 1.5 M18 X 1.5 M22X1.5 M22X1.5 M33 X 2 M33 X 2 M33 X 2 M33 X 2