Butterfly Valve Manufacturer



Feature & Benefits :

  • Longer Life : The strength of the vulcanised liner as well as its strong bonding with the body ensure that it doesn’t get deformed and torn by the disc during valve operations. Further, friction during operations is minimized owing to the smooth liner surface. The strong seat and reduced friction greatly enhance service life of the valve.
  • Tight Sealing and Consistent Low Torque : Bubble-tight sealing is obtained by the tight interference fit between liner and disc. The insitu moulded seat does not deform with age, and hence the operating torque stays low and consistent during the entire life cycle of the valve. High reliability and consistent torque make Aquaseal the ideal valve for actuated systems.
  • Assured Shaft Sealing : The flat profiles on the top and bottom of Aquaseal Plus disc engage with matching profiles on the body liner, and the large area of contact prevents leakage to atmosphere. Integrally molded O-Ring that compresses around the blowout-proof shaft provide a secondary seal.
  • Actuator Mounting Platform : The integral ISO 5211 platform facilitates direct mounting of actuators and gear units, thereby improving system reliability and efficiency.
  • Enhanced Reliability : The rugged body is designed to withstand pipeline stresses and vibrations. Further, enhanced liner thickness assures reliable performance over an extended service. Reinforcements are provided on Aquaseal disc also.
  • Lower Torque, Longer Life : The Aquaseal disc is profiled for smoother flow. Further the coating/ encapsulation of Nylon and EPDM on the disc helps to reduce torque and prevent disc damage.
  • Reliable Drive : In Aquaseal a two-piece shaft is employed for closer control and smooth operation. The shaft is Xylan-coated to reduce friction and improve wear resistance. While the square shaft provides positive drive, the bottom shaft acts as a pivot for operational ease.


Accessories :

  • Extension spindle
  • Street covers
  • Handwheel
  • Stem cap for rod
  • Adaptor gearside
  • Post indicator
  • Dismantling joint
  • Combi-flange
  • Adaptors different types of gearboxes and electric actuators
  • Double eccentric butterfly valve, for water to max. 70° C, designed according to EN 593,
  • Face to face according to EN 558 table 2 basic series 14.
  • Standard flange drilling to EN1092-2 (ISO 7005-2)
  • Hydraulic test according to EN 1074-1 and 2 / EN 12266.


Double eccentric design : The double eccentric design gives minimal wear of the disc seal, as the disc swings open/close like a door relieving the stress on the seal just after a few degrees of opening. The seal is fully compressed in closed position which gives 100% drip-tight closure. The disc and seat are designed to give the lowest possible operating torque in opening and closing direction at full differential pressure.

Shaft sealing : Encapsulated O-rings, self-lubricating bearings and bronze bushings protect against galvanic corrosion.

Disc and seat design : The slim and streamlined disc design ensures low pressure loss across the valve, and the disc enables bi-directional flow. The seat is casted in the valve body, which is epoxy coated to avoid corrosion. The disc seals are mounted in a stainless steel retainer ring, and are exchangeable independent of flow direction. The disc is fixed by means of a keyway and set screws protecting against flutter between shaft and disc.


Specifications

Material Stainless Steel
Pressure 520 Kpa
Port Size 6cm - 20 Cm,21cm - 50 Cm
Condition New


Graphical Images

Graphical Images

Butterfly Valve Exploded View

Butterfly Valve Exploded View

Technical Data

Valve Size A B D C E H G Y
NPS DN Flow Control Lever Standard Gear Unit Heavy Duty Gear Unit Wafer Flangeless Water Lugged Flow Control Lever Standard Gear Unit Heavy Duty Gear Unit Flow Control Lever Standard Gear Unit Heavy Duty Gear Unit
2 50 43 99 129 277 65 96 158 176 181 216 242 24
65 46 110 140 288 78 105 180 176 181 216 242 46
3 80 46 116 146 294 85 123 190 176 181 216 242 62
4 100 52 134 164 312 105 157 216 268 181 308 242 82
5 125 56 164 194 342 118 180 255 268 181 308 242 107
6 150 56 177 207 355 144 212 280 268 181 308 242 135
8 200 60 235 300 428 450 169 262 345 405 217 255 470 290 375 184
10 250 68 259 332 452 476 214 322 405 513 217 255 610 290 375 234
12 300 78 284 357 477 501 249 373 485 516 217 255 612 290 375 279
14 350 92 318 510 535 304 430 530 217 255 290 375 324
16 400 102 370 587 340 481 600 255 375 374
18 450 114 409 790 408 524 650 437 552 423
20 500 127 441 828 430 583 710 437 552 475
24 600 154 501 889 500 685 820 437 552 573

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