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 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 | |
Add: No. 175, Lane 250, Fangde Road, Jiading District, Shanghai
Tel: +86-21-51863336
Fax: +86-21-34677003
E-mail: shldv@139.com
Web: Http://www.shldv.com
Fujian plant site：2233 Maosheng Road, Nan 'an City, Fujian Province
Factory telephone：+86-21-31007333
Shanghai Public Network Anbei: 31011402004337Sitemap
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