日韩欧美亚洲麻豆国产精品_国产 欧美 日韩 另类 小说_国产亚洲精品va在线观看_爆乳邻居肉欲中文字幕_国产精品亚洲综合av_国产免费午夜网站_最近手机2024中文字幕免费看_蜜桃无码成人一区在线视频_av无码专区亚洲_亚洲国产经典三级在线观看

CN | EN

Bellows control valve (pneumatic)

Technical Parameters

Product model:ZJHB(P/M)
Nominal diameter: DN25~300mm
Pressure range: PN1.6~6.4MPa
Operating temperature: -40°C~+350°C
Technical standard: IEC534-1-1976
Flange standard: JB/T79-2015
Valve form: straight through cast ball valve
Body material: cast steel (WCB) stainless steel (CF8)
Sealing packing: bellows seal, V-shaped PTFE

Product Details

Product overview
Pneumatic bellows control valve is composed of multi-spring pneumatic membrane actuator and bellows sealingcontrol valvebody. The bellows regulating valve spool adopts the upper guide structure, compact structure, and has an S streamlined flow channel, so that its pressure drop loss is small, the flow rate is large, the adjustable range is wide, the flow characteristics are high, and the upper valve cover adopts bellows sealing structure to ensure the sealing performance. It is suitable for the adjustment of flammable, explosive, volatile, permeable and rare precious metal media. In addition, pneumatic bellows control valves can also be used in vacuum applications.

Performance characteristics
1. The double sealing structure of bellows packing is adopted to achieve better safety and reliability without leakage; A more reasonable material match can be selected according to the temperature or pressure used on site.
2. It is suitable for the adjustment of flammable, explosive, volatile, permeable and rare precious metal media. The double seal of bellows packing can also be used as a regulation on vacuum pipes.


Main connection size

Nominal diameterDN(mm) 20 25 32 40 50 65 80 100 125 150 200
L PN16/25 181 184 200 222 254 276 298 352 410 451 600
PN40 194 197 200 235 267 292 317 368 425 473 610
PN64 206 200 210 251 286 311 337 394 440 508 650
H PN16/25 52.5 57.5 75 75 85.5 92.5 100 110 142.5 158 170
PN40 52.5 57.5 75 75 82.5 92.5 100 117.5 150 167.5 187.5
PN64 65 40 85 85 90 102.5 107.5 125 172.5 195 207.5
H1 365 365 425 430 445 660 680 690 748 740 780
H2 298 298 298 298 298 380 380 380 510 510 510
H3 180 180 180 180 180 236 236 236 310 310 310
L1 289 289 289 289 289 347 347 347 476 476 476
A 282 282 282 282 282 360 360 360 470 470 470
D 220 220 220 220 220 270 270 270 320 320 320

Home
Products
Application
Tel