Pneumatic Flange Straight-through Globe Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Pneumatic flange straight-through globe valves
Structural features
Main structural characteristics of J641H pneumatic flange straight-through globe valve are: 1.exquisite selection, in line with domestic and foreign standards, with reasonable structure, and beautiful shape. 2, the disc and seat sealing surface adopt iron-based alloy or Stellite cobalt-based hard alloy build up welding, with wear-resistance, high temperature resistance, corrosive resistance, good anti-abrasion performance, long service life. 3, after tempering and surface nitriding treatment, the stem has a good anti-corrosion and scratch resistance. 4, it can adopt a variety of pipe flange standards and flange sealing surface pattern, to meet the various project needs and user requirements. 5, full range of body materials, packing, gasket can be selected and matched reasonably according to the actual working conditions or the users’ requests, and it can be applied to all kinds of pressure, temperature and medium conditions. 6, inverted sealing adopts Screw connection sealing seat or body austenitic stainless steel welding, with reliable sealing, and the replacement of packing can be processed in non-stop, convenient and not affect system operation. The valve uses double acting cylinder, controls valve remotely by use of upper cavity intake or down cavity intake. It is easy and flexible to operate. The medium of cylinder: compressed air, nitrogen. The valve structure is simple and convenient to maintain; working stroke is small, the open and closed time is short; disc and seat sealing surface use cone sealing, the closed friction is small, resistant to erosion, and the sealing is reliable. The seat can be the replaceable seat, it can combinate arbitarily with the matching of closed part sealing surface material, in order to meet the requirement of various working conditions, and extend the service life.
Dimensions & constructral diagram
Pneumatic flange straight-through globe valve constructral diagram
The materials of main parts
| body/bonnet | disc | sealing ring | Stem | packing | applicable medium | suitable temperature (≤°C) |
| WCB | WCB+D507MO | D577 | 2Crl3 | flexible graphite | water,oil,steam | 425 |
| ZGlCrl8Ni9Ti | 0Crl8Ni9Ti Stellite12 | Stellite6 | lCrl8Ni9Ti | PTFE | nitric acid | 200 |
| ZGlCrl8Ni2Mo2Ti | CF8M Stellite12 | lCrl8Ni2Mo2Ti | lCrl8Ni2Mo2Ti | PTFE | Phosphoric acid, alkali, mixed acid | 200 |
| ZG00Crl7Nil4M02 | CF3M Stellite12 | Stel1ite6 | 316L | PTFE | Phosphoric acid, urea, A ammonium liquid | 200 |
| ZGlCr5MO | ZGlCr5MO Stellite12 | Stel1ite6 | 25Cr2Mo1VA | flexible graphite | water,oil,steam | 550 |
Main external and connection dimensions and weight
| nominal pressure PN(MPa) | nominal diameter DN(mm) | standard value | reference value | ||||||||
| L | D | D1 | n2 | D6 | b | f | f1 | Z-φd | L1 | ||
| 1．6 | 50 | 230 | 160 | 125 | 100 | 16 | 3 | 4-φ18 | 185 | ||
| 65 | 290 | 180 | 145 | 120 | 18 | 3 | 4-φ18 | 232 | |||
| 80 | 310 | 195 | 160 | 135 | 20 | 3 | 8-φ18 | 232 | |||
| 100 | 350 | 215 | 180 | 155 | 20 | 3 | 8-φ18 | 232 | |||
| 125 | 400 | 254 | 210 | 185 | 22 | 3 | 8-φ18 | 283 | |||
| 150 | 480 | 280 | 240 | 210 | 24 | 3 | 8-φ23 | 283 | |||
| 200 | 600 | 335 | 295 | 265 | 26 | 3 | 12-φ23 | 283 | |||
| 250 | 622 | 405 | 355 | 320 | 30 | 3 | 12-φ25 | 283 | |||
| 300 | 698 | 460 | 410 | 375 | 30 | 4 | 12-φ25 | 283 | |||
| 2.5 | 50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-φ18 | 185 | ||
| 65 | 290 | 180 | 145 | 120 | 22 | 3 | 8-φ18 | 232 | |||
| 80 | 310 | 195 | 160 | 135 | 22 | 3 | 8-φ18 | 232 | |||
| 100 | 350 | 230 | 190 | 160 | 24 | 3 | 8-φ23 | 232 | |||
| 125 | 400 | 270 | 220 | 188 | 28 | 3 | 8-φ25 | 283 | |||
| 150 | 480 | 300 | 250 | 218 | 30 | 3 | 8-φ25 | 283 | |||
| 200 | 600 | 360 | 310 | 278 | 34 | 3 | 12-φ25 | 283 | |||
| 250 | 622 | 425 | 370 | 332 | 36 | 3 | 12-φ30 | 283 | |||
| 300 | 698 | 485 | 430 | 390 | 40 | 4 | 16-φ30 | 283 | |||
| 4.0 | 50 | 230 | 160 | 125 | 100 | 88 | 20 | 3 | 4 | 4-φ18 | 185 |
| 65 | 290 | 180 | 145 | 120 | 110 | 22 | 3 | 4 | 8-φ18 | 232 | |
| 80 | 310 | 195 | 160 | 135 | 121 | 22 | 3 | 4 | 8-φ18 | 232 | |
| 100 | 350 | 230 | 190 | 160 | 150 | 24 | 3 | 4．5 | 8-φ23 | 232 | |
| 125 | 400 | 270 | 220 | 188 | 176 | 28 | 3 | 4．5 | 8-φ25 | 283 | |
| 150 | 480 | 300 | 250 | 218 | 204 | 30 | 3 | 4．5 | 8-φ25 | 283 | |
| 200 | 600 | 375 | 320 | 282 | 260 | 38 | 3 | 4．5 | 12-φ30 | 283 | |
