PRODUCT OVERVIEW
German standard lifting check valve is widely used in pipelines under various working conditions such as petroleum, chemical industry and thermal power station with nominal pressure of pn16-pn40 and working temperature of - 29 ~ 550 ℃. The applicable medium is water, oil, steam, etc. Its main function is to prevent medium backflow, reverse rotation of pump and its driving motor, and discharge of medium in container.
PRODUCT FEATURES
1. German standard lifting check valve is an automatic sealing valve. The valve automatically opens and closes the valve disc by relying on the flow of the medium itself, effectively preventing the backflow of the medium.
2. The valve disc is equipped with stainless steel spring device, and the valve can be installed horizontally and vertically.
3. The sealing surface is wear-resistant, corrosion-resistant, friction resistant and has long service life.
4. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.
MATERIAL OF MAIN PARTS
Part name | Valve body and bonnet | Hoist | Sealing surface | Bolt |
Texture of material | GS-C25 | 2Cr13 | 2Cr13、STL | carbon steel |
1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti、STL | 1Cr18Ni9Ti |
CF3、CF8
CF3、CF8 | SS316 | 304L、304、316L、316、STL | 1Cr18Ni9Ti |
MAIN TECHNICAL PARAMETERS
Nominal pressure | 1.6MPa | 2.5MPa | 4.0MPa |
Shell strength | 2.4MPa | 3.8MPa | 6.0MPa |
Sealing test | 1.8MPa | 2.8MPa | 4.4MPa |
Applicable temperature | -20～350℃ |
Applicable media | Water, steam, oil, etc |
MAIN CONNECTION SIZE AND WEIGHT
DN | L | H | Kv | Weight(Kg) |
PN16 | PN25 | PN40 |
15 | 130 | 70 | 5.7 | 2.4 | 3.5 | 3.8 |
20 | 150 | 70 | 7.8 | 3.0 | 4.4 | 4.9 |
25 | 160 | 80 | 11.8 | 3.8 | 5.0 | 5.9 |
32 | 180 | 80 | 17.9 | 5.7 | 6.0 | 7.1 |
40 | 200 | 85 | 27.5 | 7.4 | 8.0 | 10.4 |
50 | 230 | 95 | 48.0 | 10.3 | 11.0 | 12.3 |
65 | 290 | 110 | 77.6 | 15.2 | 16.0 | 22.7 |
80 | 310 | 130 | 109.0 | 20.4 | 21.0 | 28.5 |
100 | 350 | 155 | 168.0 | 31.0 | 32.0 | 40.0 |
125 | 400 | 165 | 251.0 | 49.0 | 51.0 | 64.0 |
150 | 480 | 215 | 389.0 | 69.0 | 70.0 | 90.0 |
200 | 600 | 285 | 664.0 | 132.0 | 136.0 | 170.0 |
250 | 730 | 325 | 1017.0 | 198.0 | 218.0 | 240.0 |
300 | 850 | 365 | 1446.0 | 278.0 | 330.0 | 370.0 |
