Fluorine Lined Lift Check Valve Cast Steel Piston Check Valve DN300
Fluorine Lined Lift Check Valve
Product Introduction
Product overviewLift line gas check valve and check valve, the valve internal flow channel four gas sealing adopts full lining, has the features of high strength and good corrosion resistance. Its applicable in - 50 ℃ ~ 150 ℃ aqua regia, various concentration of sulfuric acid, hydrochloric acid, hydrochloric acid and various organic acid, strong acid, strong oxidizer, FEP also apply to all kinds of organic solvent concentration of alkali and other corrosive gas and liquid medium in the pipeline, used to prevent the backflow medium.
standard
Design and Manufacture :GB12235
Structure length :GB12221
Flange connection size :GB4216
material
Body: cast steel, cast iron, stainless steel
Lining: rubber, fluorine plastic
Valve cover: cast steel, cast iron, stainless steel
Disc: Carbon steel completely coated with rubber
Product structure reference drawing
Principle of Operation
In use, the medium follows the direction of the arrow shown. When the flow direction of the medium is adjusted, the valve is opened due to the force of the medium; When the medium countercurrent, due to the weight of the disc and the disc, the reaction force is closed by the medium and the sealing surface of the valve seat, to prevent the purpose of the medium countercurrent.
Main shape and connection dimensions
| Nominal diameter | Standard value | Reference value | |||||||||
| DN (mm) |
NPS (in) |
L | D | D1 | D2 | f | b | z-Φd | Do | H | W(kg) |
| PN1.0(MPa) | |||||||||||
| 15 | ½ | 130 | 95 | 65 | 45 | 2 | 14 | 4-14 | 105 | 55 | 5 |
| 20 | ¾ | 150 | 105 | 75 | 55 | 2 | 16 | 4-14 | 115 | 58 | 7 |
| 25 | 1 | 160 | 115 | 85 | 65 | 2 | 16 | 4-14 | 128 | 60 | 9 |
| 32 | 1¼ | 180 | 135 | 100 | 78 | 2 | 18 | 4-18 | 145 | 75 | 11 |
| 40 | 1½ | 200 | 145 | 110 | 85 | 3 | 18 | 4-18 | 160 | 82 | 13.5 |
| 50 | 2 | 230 | 160 | 125 | 100 | 3 | 20 | 4-18 | 178 | 95 | 18 |
| 65 | 2½ | 290 | 180 | 145 | 120 | 3 | 20 | 4-18 | 205 | 105 | 22 |
| 80 | 3 | 310 | 195 | 160 | 135 | 3 | 22 | 8-18 | 230 | 120 | 28 |
| 100 | 4 | 350 | 215 | 180 | 155 | 3 | 22 | 8-18 | 255 | 135 | 34 |
| 125 | 5 | 400 | 245 | 210 | 185 | 3 | 24 | 8-18 | 305 | 158 | 58 |
| 150 | 6 | 480 | 280 | 240 | 210 | 3 | 24 | 8-23 | 345 | 180 | 72 |
| 200 | 8 | 495 | 335 | 295 | 265 | 3 | 26 | 8-23 | 415 | 215 | 150 |
| 250 | 10 | 622 | 390 | 350 | 320 | 3 | 28 | 12-23 | 490 | 240 | 165 |
| 300 | 12 | ©98 | 440 | 400 | 368 | 4 | 28 | 12-23 | 540 | 265 | 190 |
| 260 | 14 | 787 | 500 | 460 | 428 | 4 | 30 | 16-23 | 585 | 300 | 225 |
Purpose of the Product
The valve is dedicated to control the general corrosive medium, the valve body cavity surface is covered with a variety of optional rubber, with high strength, good corrosion resistance; Suitable for different working temperature and fluid pipeline, to prevent all kinds of pipeline or equipment on the medium countercurrent one-way opening and closing.
Applicable temperature :≤85℃, ≤100℃, ≤120℃(according to the lining material)
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