pneumatic lug centerline butterfly valve
technical parameter
item model number: d67l1x
nominal diameter: dn50-600mm
pressure class: pn0.6-1.6mpa
body material: ductile iron, 304, 316
applicable medium: water, liquid, gas, oil, powder, steam, viscous, particles, etc.
design and manufacture: gb/t12238
connection standard: jb/t 79.1, asme b16.10
structure length: gb/t12221, asme b16.5
pressure test: gb/t13927
product overview
pneumatic lug type midline butterfly valve is composed of lug type butterfly valve and pneumatic actuator. the air source drives the valve stem to drive the circular butterfly plate as an opening and closing part and rotates with the valve stem to open, close and adjust the fluid, so as to realize on-site operation. and remote centralized control requirements. it is widely used in chemical, petroleum, papermaking, fire pipeline, drainage, sewage, food, heating, gas, shipbuilding, hydropower, metallurgy, energy system and light textile industries.
features
1. the valve is small and light, easy to disassemble and maintain, and can be installed in any position.
2. the structure is simple and compact, and the 90° rotation can be opened quickly.
3. small operating torque, labor-saving and lightweight.
4. the flow characteristics of the valve tend to be straight, and the adjustment performance is good.
5. the number of opening and closing tests is up to tens of thousands, and the service life is long.
6. the seals can be replaced, the sealing can be reliably achieved in two directions, and the gas test leakage is zero.
7. the sealing material is resistant to aging and corrosion, and can be applied to a variety of media.
main technical parameters and performance
technical parameters of gtd/da pneumatic actuator | body parameters | ||
type | double acting piston, spring return | nominal diameter | dn50～600mm |
air pressure | double acting: 2-8bar/single acting: 4-8bar | nominal pressure | pn1.0、1.6mpa |
output torque | double acting: 4n·m～10560n·m | valve shaft material | carbon steel, 304/316/316l stainless steel |
single acting: 7n·m～2668n·m | body material | ductile iron, carbon steel, stainless steel | |
operating temperature | normal temperature type: -20℃～80℃ (nbr o-ring) | disc material | ductile iron, 304/316/316l stainless steel, nylon |
high temperature type: -20℃～160℃ (fluoroelastomer o-ring) | seat seal | epdm, nbr, wear-resistant rubber | |
range of motion | 0～90°±5° | structure type | lug center line type, no pin type |
interface thread | gtd40～gtd83/atd50～atd88 g1/8″ | proper temperature | epdm≤80℃；nbr≤68℃ |
gtd110～gtd350/atd100～200 g1/4″ | applicable media | water, air, natural gas | |
valve position signal | positioner: 4～20ma/returner: fully open and fully closed signal | features | wide range of uses, low overall cost, large flow and small flow resistance |
main external connection dimensions
nominal diameter dn | in | main dimensions（mm） pn10/pn16 | actuator size | ||||||
l | d2 | h1 | h2 | n-φd | a | p | b | ||
50 | 2 | 43 | 125 | 193 | 80 | 4-16 | 163 | 96 | 76 |
65 | 2-1/2 | 46 | 145 | 212 | 89 | 4-16 | 195 | 115 | 91 |
80 | 3 | 46 | 160 | 232 | 95 | 8-16 | 195 | 115 | 91 |
100 | 4 | 52 | 180 | 280 | 114 | 8-16 | 217 | 137 | 11 |
125 | 5 | 56 | 210 | 302 | 127 | 8-16 | 258 | 147 | 122 |
150 | 6 | 56 | 240 | 330 | 139 | 8-20 | 299 | 165 | 136 |
200 | 8 | 60 | 295 | 419 | 175 | 8-20/12-20 | 349 | 182 | 153 |
250 | 10 | 68 | 350/355 | 482 | 203 | 12-20/12-24 | 397 | 199 | 173 |
300 | 12 | 78 | 400/410 | 553 | 242 | 12-20/12-24 | 473 | 221 | 192 |
350 | 14 | 78 | 460/470 | 635 | 267 | 16-20/16-24 | 560 | 249 | 213 |
400 | 16 | 102 | 515/525 | 709 | 301 | 16-24/16-27 | 601 | 280 | 243 |
450 | 18 | 114 | 565/585 | 750 | 381 | 20-24/20-27 | 738 | 383 | 356 |
500 | 20 | 131 | 620/650 | 840 | 387 | 20-24/20-30 | 738 | 383 | 356 |
600 | 24 | 154 | 725/770 | 1021 | 457 | 20-27/20-33 | 940 | 434 | 415 |