Lined butterfly valve

Body:  GGG40
Disc:  CF8M,1.4462,CF8M FEP lined,CF8 EPDM lined
Seat:  PTFE,FPM,EPDM,PU,NBR
Body style:  wafer
Nominal diameter:  2″ – 24″ (DN50mm – DN600mm)
Top flange:  ISO5211
Operating pressure:  16bar for DN50-DN200, 10bar for DN250-DN600
Flange accommodation:  EN 1092 PN 6/PN10/PN16,ASME Class 150,JIS 5K/10K







Description

Lined wafer butterfly valve is split body designed for a wide variety of liners such as PTFE, EPDM, NBR, FPM, PU to fit a wide range of applications.

PTFE is the preferred material for corrosive applications in chemical industry.
PU is the preferred material for abrasive applications.
EPDM is the preferred rubber for water industries.
NBR is the preferred rubber for oil transportation.
FPM is the preferred rubber for wide range of medium composition and temperature.
Wafer design makes the valve convenient for connection between flanges and save length in pipe line.

FEATURES

  • ISO5211 direct mounting pad for easy automation
  • Isolation height according to plant prescription
  • Dirtscraper prevents moisture penetrating into the shaft area
  • Three PTFE impregnated SS316L bearings are provided for precision alignment of the disc-shaft
  • 3 layers sealing system ensures environment protection
  • PTFE seat and rubber seat version interchangeable each other• PTFE-liner for chemically toxic and highly corrosive media, rubber liner for various of industry applications
  • Silicon rubber energized back behind PTFE seat makes the sealing between liner and disc stable and offer a wide range of temperature
  • One-piece disc-shaft design reduces the valve torque and increases Kv
  • PTFE or rubber lined disc design option avoids high cost by expensive metal in corrosive applications
  • Bubble-tight shut of at full pressure rating
  • Can be disassembled, material-specific recycling possible
  • Wave shape flange face design ensures the flange sealing of seat face not damaged by flange pressing, also avoids shrink of seat inside diameter because of flange pressing

Lined wafer butterfly valve Explosion

PARTS LIST AND MATERIAL SPECIFICATION

No.Part nameMaterial
1BodyGGG40
2Disc/shaft one pieceCF8M1.4462CF8M FEP linedCF8 EPDM lined
3SeatPTFE,FPM,EPDM,PU,NBRPTFEEPDM
4Seat EnergizerSR
5Weather sealNBR
6BearingPTFE impregnated SS316L
7GlandPTFE
8ScrewSS304
9Belleville washerSS304
10Stuffing collarSS316
11O ringFPM
12V ringPTFE

TECHNICAL DATA

Body stylewafer
Nominal diameter2″ – 24″ (DN50mm – DN600mm)
Top flangeISO5211
Operating pressure16bar for DN50-DN200, 10bar for DN250-DN600
Temperature range-20 °C to + 180 °C (depending on pressure, medium and material)
Flange accommodationEN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16
JIS 5K/10K
OperationHand lever, gear box, pneumatic actuator, electric actuator

DIMENSIONS (mm)

Lined wafer butterfly valve size

SIZEABCDEFdGHLWT(kg)
DNINCH
502″1266513.5116115086525432
652 1/2″1387913.5136115086559463
803″1387913.5136115086559463
1004″1679717.51701470109086525
1255″18012917.519614701090112567
1506″20314218.522717701090140568
2008″22817218.527917102121251916013
25010″26621324.533622102121252415822
30012″29124224.539222102121252907831
35014″3322623044527125141503317844
40016″363303.530503271251415037710264
45018″397324.539553361401817542511486
50020″425357396083614018175474127116
60024″498419497174616522210570154179