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Globe Valve > Products >Pneumatic Flange Straight-through Globe Valve

Pneumatic Flange Straight-through Globe Valve

Manufacturer: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

Pneumatic flange straight-through globe valves
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
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
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