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Brief Introduction
The D641X pneumatic flange soft seal butterfly valve has a novel and reasonable design, simple structure, small size, light weight, 90-degree rotation, quick opening and closing, small operating torque, easy operation, labor-saving and dexterous. It can be installed in any position and is easy to maintain. The seal can be replaced, the sealing performance is reliable to achieve two-way sealing and zero leakage, and the sealing material is resistant to aging and corrosion, and has a long service life. When the flange butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical industry, and water treatment, but also in the cooling water system of thermal power plants.
Technical Parameter
Pneumatic Actuator Optional Features | Double acting, single acting |
Pneumatic actuator optional models | AT series, AW series |
Solenoid valve voltage | AC110V,AC220V,AC24V,DC24V |
Air source pressure | 2bar~8bar |
Nominal diameter | DN25mm-DN1200mm |
Nominal pressure | PN1.0MPa-PN1.6MPa |
Applicable temperature | EPDM:-30-+100ºC PTFE:-30-+120ºC |
Connection | Flange |
Valve body material | Ductile iron, carbon steel, stainless steel, nylon |
Valve plate material | Ductile iron, 304, 316, 316L, 2507, 1.4529, copper plate, etc. |
Valve seat lining | NBR, EPDM, PTFE |
Applicable media | Water, gas, slurry, oil, etc. |
Main Dimension Table
DN(mm) | L | D | D1 | D2 | n-φd | b | f |
50 | 108 | 165 | 125 | 99 | 4-Φ18 | 20 | 2 |
65 | 112 | 185 | 145 | 118 | 4-φ18 | 20 | 2 |
80 | 114 | 200 | 160 | 135 | 8-Φ18 | 20 | 2 |
100 | 127 | 220 | 180 | 156 | 8-φ18 | 22 | 2 |
125 | 140 | 250 | 210 | 184 | 8-φ18 | 22 | 2 |
150 | 140 | 285 | 240 | 211 | 8-φ22 | 24 | 2 |
200 | 152 | 340 | 295 | 266 | 12-φ22 | 24 | 2 |
250 | 165 | 405 | 355 | 319 | 12-φ26 | 26 | 2 |
300 | 178 | 460 | 410 | 370 | 12-φ26 | 28 | 2 |
350 | 190 | 520 | 470 | 429 | 16-φ26 | 30 | 2 |
400 | 216 | 580 | 525 | 480 | 16-φ30 | 32 | 2 |
450 | 222 | 640 | 585 | 548 | 20-φ30 | 40 | 2 |
500 | 229 | 715 | 650 | 609 | 20-φ33 | 44 | 2 |
600 | 267 | 840 | 770 | 720 | 20-φ36 | 48 | 2 |
700 | 292 | 910 | 840 | 754 | 24-φ36 | 50 | 5 |
800 | 318 | 1025 | 950 | 901 | 24-φ39 | 52 | 5 |
900 | 330 | 1125 | 1050 | 1001 | 28-φ39 | 54 | 5 |
1000 | 410 | 1255 | 1170 | 1112 | 28-φ42 | 56 | 5 |