Double Eccentric butterfly valve
Double Eccentric butterfly valve
Technical Requirements:
1.Basic Design: DIN3354
2.Face to face: DIN3202
3.Flange connection in accordance: DIN EN1092-1
4.Test standard: DIN3230
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Technical Specification |
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PN Shell test pressure |
MPa |
1.6 |
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2.4 |
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1.75 |
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Seal test pressure working temperature |
℃ |
0-80 |
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Applicable medium |
Sewage, water, gas etc |
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Butterfly valve, also known as flap valve, is a regulating valve with simple structure, Butterfly valve which can be used for switching control of medium in low-pressure pipeline refers to a valve whose closing part (disc or disc) is a disc and rotates around the valve axis to open and close. It is used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal and radioactive media. It mainly plays the role of cut-off and throttling on the pipeline.
characteristic
Butterfly valve has the advantages of small size, light weight, fast switching and certain regulation performance.
Metal hard seal butterfly valve adopts precise J-shaped elastic seal ring and three eccentric multi-level metal hard seal structure. It is widely used in metal treatment, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ for regulating flow and carrying off fluid.
Specification
| SIZE | Pressure | Ø1 | Ø2 | Ø | D | L | L1 | L2 | H1 | H2 | H3 | n-d |
| DN100 | PN16 | 156 | 220 | 180 | 180 | 127 | 52 | 115 | 125 | 180 | 72 | 8-19 |
| DN125 | PN16 | 186 | 245 | 210 | 180 | 140 | 52 | 115 | 139 | 200 | 70 | 8-19 |
| DN150 | PN16 | 211 | 285 | 240 | 180 | 140 | 52 | 115 | 139 | 200 | 72 | 8-23 |
| DN200 | PN16 | 266 | 340 | 295 | 220 | 152 | 80 | 115 | 175 | 300 | 85 | 12-23 |
| DN250 | PN16 | 319 | 405 | 355 | 220 | 165 | 80 | 115 | 210 | 352 | 105 | 12-28 |
| DN300 | PN16 | 370 | 460 | 410 | 320 | 178 | 80 | 115 | 185 | 370 | 105 | 12-28 |
| DN350 | PN16 | 429 | 520 | 470 | 320 | 190 | 80 | 115 | 185 | 395 | 105 | 16-28 |
| DN400 | PN16 | 480 | 580 | 525 | 400 | 216 | 136 | 115 | 312 | 435 | 132 | 16-31 |
| DN450 | PN16 | 548 | 640 | 585 | 500 | 222 | 136 | 115 | 336 | 481 | 132 | 20-31 |
| DN500 | PN16 | 609 | 715 | 650 | 500 | 229 | 136 | 115 | 360 | 512 | 153 | 20-34 |
| DN600 | PN16 | 720 | 840 | 770 | 600 | 267 | 136 | 115 | 420 | 586 | 180 | 30-37 |
| DN700 | PN16 | 794 | 910 | 840 | 600 | 292 | 136 | 115 | 500 | 660 | 180 | 24-37 |
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