Description
Lined flange pneumatic butterfly valve
The Lined Flange Pneumatic Butterfly Valve, a cutting-edge solution for precise and secure flow control in aggressive environments. This advanced valve is designed with a sturdy stainless steel body that is fully lined with a high-quality, chemically resistant material to safeguard against corrosive substances like acids, alkalis, and other aggressive chemicals. The disc is also lined, ensuring compatibility with a wide range of applications. The pneumatic actuator delivers fast, accurate, and efficient control of the valve’s position, making it ideal for high-pressure and high-temperature systems. The triple-offset design guarantees a bubble-tight seal while reducing friction between the disc and seal, ultimately extending the lined butterfly valve service life. Featuring easy installation and low maintenance requirements, the Lined pfa Butterfly Valve is an excellent choice for industries such as chemical processing, water treatment, pharmaceuticals, and more, where dependable flow control and corrosion resistance are critical. Experience unparalleled performance, durability, and reliability even in the most demanding conditions with this innovative valve.
Lined butterfly valves 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.
Lug design makes the valve convenient for disassembling between flanges and work well for dead end service with short 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
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 | Lug |
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)
SIZE | A | B | C | D | D1 | E | F | d | G | H | L | WT(kg) | |
DN | INCH | ||||||||||||
50 | 2″ | 126 | 65 | 13.5 | 117 | 147 | 11 | 50 | 8 | 65 | 25 | 43 | 2 |
65 | 2 1/2″ | 138 | 79 | 13.5 | 131 | 161 | 11 | 50 | 8 | 65 | 59 | 46 | 3 |
80 | 3″ | 138 | 79 | 13.5 | 176 | 206 | 11 | 50 | 8 | 65 | 59 | 46 | 3 |
100 | 4″ | 167 | 97 | 17.5 | 206 | 236 | 14 | 70 | 10 | 90 | 86 | 52 | 5 |
125 | 5″ | 180 | 129 | 17.5 | 236 | 272 | 14 | 70 | 10 | 90 | 112 | 56 | 7 |
150 | 6″ | 203 | 142 | 18.5 | 258 | 294 | 17 | 70 | 10 | 90 | 140 | 56 | 8 |
200 | 8″ | 228 | 172 | 18.5 | 321 | 363 | 17 | 102 | 12 | 125 | 191 | 60 | 13 |
250 | 10″ | 266 | 213 | 24.5 | 395 | 437 | 22 | 102 | 12 | 125 | 241 | 58 | 22 |
300 | 12″ | 291 | 242 | 24.5 | 461 | 509 | 22 | 102 | 12 | 125 | 290 | 78 | 31 |
350 | 14″ | 332 | 262 | 30 | 511 | 571 | 27 | 125 | 14 | 150 | 331 | 78 | 44 |
400 | 16″ | 363 | 303.5 | 30 | 580 | 640 | 27 | 125 | 14 | 150 | 377 | 102 | 64 |
450 | 18″ | 397 | 324.5 | 39 | 630 | 702 | 36 | 140 | 18 | 175 | 425 | 114 | 86 |
500 | 20″ | 425 | 357 | 39 | 700 | 772 | 36 | 140 | 18 | 175 | 474 | 127 | 116 |
600 | 24″ | 498 | 419 | 49 | 823 | 913 | 46 | 165 | 22 | 210 | 570 | 154 | 179 |