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 name Material
1 Body GGG40
2 Disc/shaft one piece CF8M 1.4462 CF8M FEP lined CF8 EPDM lined
3 Seat PTFE,FPM,EPDM,PU,NBR PTFE EPDM
4 Seat Energizer SR
5 Weather seal NBR
6 Bearing PTFE impregnated SS316L
7 Gland PTFE
8 Screw SS304
9 Belleville washer SS304
10 Stuffing collar SS316
11 O ring FPM
12 V ring PTFE

TECHNICAL DATA

Body style wafer
Nominal diameter 2″ – 24″ (DN50mm – DN600mm)
Top flange ISO5211
Operating pressure 16bar for DN50-DN200, 10bar for DN250-DN600
Temperature range -20 °C to + 180 °C (depending on pressure, medium and material)
Flange accommodation EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16
JIS 5K/10K
Operation Hand lever, gear box, pneumatic actuator, electric actuator

DIMENSIONS (mm)

Lined wafer butterfly valve size

SIZE A B C D E F d G H L WT(kg)
DN INCH
50 2″ 126 65 13.5 116 11 50 8 65 25 43 2
65 2 1/2″ 138 79 13.5 136 11 50 8 65 59 46 3
80 3″ 138 79 13.5 136 11 50 8 65 59 46 3
100 4″ 167 97 17.5 170 14 70 10 90 86 52 5
125 5″ 180 129 17.5 196 14 70 10 90 112 56 7
150 6″ 203 142 18.5 227 17 70 10 90 140 56 8
200 8″ 228 172 18.5 279 17 102 12 125 191 60 13
250 10″ 266 213 24.5 336 22 102 12 125 241 58 22
300 12″ 291 242 24.5 392 22 102 12 125 290 78 31
350 14″ 332 262 30 445 27 125 14 150 331 78 44
400 16″ 363 303.5 30 503 27 125 14 150 377 102 64
450 18″ 397 324.5 39 553 36 140 18 175 425 114 86
500 20″ 425 357 39 608 36 140 18 175 474 127 116
600 24″ 498 419 49 717 46 165 22 210 570 154 179