Lift check valve refers to the valve that automatically opens and closes the valve disc depending on the flow of the medium itself to prevent the backflow of the medium. It is also known as check valve, one-way valve, reverse flow valve and back pressure valve. The check valve belongs to an automatic valve, which is mainly used to prevent medium backflow, reverse rotation of pump and driving motor, and discharge of container medium. The check valve can also be used on the pipeline to supply the auxiliary system in which the pressure may rise above the system pressure.
Body material | WCB/ 20#/Steel /DIN17245GS |
Disc | WCB/ 20#/Steel /DIN17245GS C25-CR13 |
Design and manufacture | DIN 3840 BS EN1868 |
Face to Face | DIN 3202, BS EN 558-1 |
Flange End | DIN 2543, BS EN1092-1 |
Inspection | DIN 3230, BSEN 12569 |
Nominal pressure | 1.0/1.6/2.5/4.0/6.3 mpa |
Stengh Testing | 1.5/2.4/3.8/6.15/9.75 mpa |
Seal Test | 1.1/1.8/2.8/4.51/7.15 |
PN16(DIN3202-F1) | PN25(DIN 3202-F1) | PN40(DIN 3202-F1) | PN63(DIN3202-F1) | ||||||||
DN | L-RF | H | DN | L-RF | H | DN | L-RF | H | DN | L-RF | H |
mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm |
15 | 130 | 77 | 15 | 130 | 100 | 15 | 130 | 100 | 15 | 210 | 100 |
20 | 150 | 77 | 20 | 150 | 105 | 20 | 150 | 105 | 20 | 230 | 110 |
25 | 160 | 80 | 25 | 160 | 120 | 25 | 160 | 120 | 25 | 230 | 125 |
32 | 180 | 85 | 3 | 180 | 130 | 32 | 180 | 130 | 32 | 260 | 140 |
40 | 200 | 95 | 40 | 200 | 135 | 40 | 200 | 135 | 40 | 260 | 168 |
50 | 230 | 105 | 50 | 230 | 149 | 50 | 230 | 149 | 50 | 300 | 170 |
65 | 290 | 120 | 65 | 290 | 160 | 65 | 290 | 160 | 65 | 340 | 188 |
80 | 310 | 130 | 80 | 310 | 169 | 80 | 310 | 169 | 80 | 380 | 205 |
100 | 350 | 140 | 100 | 350 | 194 | 100 | 350 | 194 | 100 | 430 | 230 |
125 | 400 | 155 | 125 | 400 | 222 | 125 | 400 | 225 | 125 | 500 | 240 |
150 | 480 | 180 | 150 | 480 | 255 | 150 | 480 | 255 | 150 | 550 | 265 |
200 | 600 | 215 | 200 | 600 | 305 | 300 | 600 | 305 | 200 | 650 | 310 |
250 | 730 | 260 | 250 | 730 | 355 | 250 | 730 | 360 | 250 | 775 | |
300 | 850 | 315 | 300 | 850 | 410 | 300 | 850 | 415 | 300 | 900 | |
350 | 980 | 350 | 980 | ||||||||
400 | 1100 | 400 | 1100 |