butt welded hard seal butterfly valve
nominal pass: dn100 ~ 1000mm, nps4 "~ 48"
nominal pressure: strength test (1.5 × pn) sealed test (1.1 × pn)
suitable temperature: carbon steel: -29 ℃ ~ 425 ℃, stainless steel : -40 ℃ ~ 650 ℃
suitable medium: water, hot water, steam, oil
drive type: worm gear, electric, pneumatic, hydraulic
welding standards: gb12224, ansi b16.25, din2559
nominal pressure: strength test (1.5 × pn) sealed test (1.1 × pn)
suitable temperature: carbon steel: -29 ℃ ~ 425 ℃, stainless steel : -40 ℃ ~ 650 ℃
suitable medium: water, hot water, steam, oil
drive type: worm gear, electric, pneumatic, hydraulic
welding standards: gb12224, ansi b16.25, din2559
on the characteristics of hard-sealing butterfly valve
1, the use of three eccentric butterfly valve can be called the top process valve, the design of the valve for high temperature, high pressure, fire-resistant foam sealing ideal sealing valve.
2, due to the use of welding structure, so that the valve and the pipeline plane to achieve a permanent zero leakage.
3, the valve can not be flanged, bringing great convenience and beautiful appearance to the pipe and insulation bandaging.
on the hard-sealed butterfly valve main technical parameters
| nominal diameter dn (mm) | dn (100 ~ 400) mm, in4 ~ 48 |
| nominal pressure pn (mpa) | strength test (1.5 × pn) seal test (1.1 × pn) |
| proper temperature | carbon steel: -29 ℃ ~ 425 ℃, stainless steel: -40 ℃ ~ 650 ℃ |
| suitable media | water, steam, hot water, oil |
| drive mode | worm gear, electric, pneumatic, hydraulic |
| pressure level | ansi 150lb / pn25 |
| welding standards | gb12224, ansi b16,25, din2559 |
the main components of the material
| part name | material |
| body | carbon steel, stainless steel, chrome-aluminum steel |
| butterfly plate | carbon steel, alloy steel, stainless steel |
| seat | 3 stainless steel, cobalt-based cemented carbide |
| sleeve | stainless steel |
| valve stem | stainless steel, special materials |
| filler | flexible graphite |
d363h / 663h / 963h / -10 / 16/25/40 / c, p, r on the hard seal butterfly valve connection size
|
nominal diameter |
main dimensions | nominal diameter | main dimensions | ||||||
| in | dn (mm) | l | h1 | h | in | dn (mm) | l | h1 | h |
| 4 | 100 | 190 | 270 | 370 | 18 | 450 | 330 | 535 | 820 |
| 5 | 125 | 200 | 295 | 390 | 20 | 500 | 350 | 560 | 900 |
| 6 | 150 | 210 | 308 | 416 | 24 | 600 | 390 | 630 | 980 |
| 8 | 200 | 230 | 370 | 530 | 28 | 700 | 430 | 670 | 1100 |
| 10 | 250 | 250 | 450 | 580 | 32 | 800 | 470 | 800 | 1300 |
| 12 | 300 | 270 | 465 | 630 | 36 | 900 | 510 | 850 | 1370 |
| 14 | 350 | 290 | 475 | 595 | 40 | 1000 | 550 | 880 | 1480 |
| 16 | 400 | 310 | 505 | 755 | 48 | 1200 | 630 | 1000 | 1690 |
the previous： electric metal hard sealing butterfly valve