Lug High Performance Butterfly Valves

Body:  ASTM A536 65-45-12, WCB, CF8M
Disc:  CF8,CF8M,CF3M
Seat:  RPTFE,SS316+RPTFE,SS316
Connection:  Lug
Size:  3″-24″
Pressure: Class150,Class300
Flange standard:    ASME B16.5 Class150,Class300; EN1092 PN16, PN25, PN40







Description

Lug high performance butterfly valve provides a cost-effective solution for a wide range of applications where bubble-tight shut-off is required. Utilizing an eccentric disc and offset shaft, the design incorporates the flexible-lip sealing system into a lightweight, compact body. The result is that in many cases the valve can replace globe valve and gate valve yet easier operating, longer lasting and lower cost.
Significant performance makes the valve widely used in many applications such as Airport refueling, Hydrocarbon processing, HVAC, Air treatment, Chemical processing, Purified gas, Steam and vacuum services, Potable water, Powder and pulp processing, etc.
Lug design makes the valve convenient for connection between flanges and well used in end of pipe.

FEATURES
• One-piece stem design with ISO 5211 square drive
• ISO 5211 direct mounting flange on the valve body
• Easy-adjust gland packing accessible with actuator mounted in place
• Belleville washers on the gland nut offer reliable primary sealing between shaft and packing
• Retaining ring for both equably pressing on packing and stem blowout proof
• Multiply rows of RPTFE chevron for soft seat valve and Graphite chevron for fire safe and metallic seat
• Extended neck for pipe insulation
• Self-energized seat resulting in longer life and reduced maintenance Pin-less shaft to disc connection makes the valve convenient for parts replacement and reliable even under corrosion
• Seat retainer supports the seat and allows for easy changeout
• Double offset disc reducing the valve torque
• Alloy harden disc surface for metal seat increases the sealing life time
• Integral disc stop prevent disc from over travel
• Soft seat, fire safe seat and metallic seat are replaceable each other
• PTFE lined SS316 bearing support stem and increase service life
• Thrust ring for anti-blowout and anti-static

Lug High Performance Butterfly Valves

PARTS LIST AND MATERIAL SPECIFICATION

No. Part name Material
1 Body WCB CF8M
2 Disc CF8* CF8M*
3 Seat RPTFE,SS316+RPTFE,SS316
4 Shaft 17-4 PHSS,1.4462
5 Packing gland CF8
6 Bottom cover Same as body
7 Cover seal Graphite
8 Thrust washer SS316
9 Seat retainer WCB CF8M
10 Gasket RPTFE, Graphite
11 Retaining ring SS304
12 Packing RPTFE, Graphite
13 Packing ring SS316
14 Bearing SS316+PTFE
15 Thrust bearing SS316
16 Key SS316
17 Bolt SS316
18 Bolt SS304
19 Bolt SS304
20 Nut SS304
21 Belleville washer SS304
*Supersonic spray welding of different materials on sealing surface of metal seating valve according to requirements

TECHNICAL DATA

Connection Lug
Size 3″-24″
Pressure Class150,Class300
Flange standard ASME B16.5 Class150,Class300; EN1092 PN16, PN25, PN40
Face to face API 609 Category B valve Wafer
Pressure test API 598
Temperature PTFE seat -29°C to +200°C,metal seat -29°C to +400°C
Operator Lever,Gear box,Pneumatic actuator,Electric actuator

DIMENSIONS (mm)

Lug High Performance Butterfly Valve

CLASS 150LB

SIZE A B C D D1 E Top Flange G L WT(kg)
DN INCH Class150
50 2″ 126 79 13.5 92 123 11 F05 45 43 5
65 2 1/2″ 126 87 13.5 105 150 11 F05 45 46 6
80 3″ 145 100 17.5 130 156 11 F07 72 48 8
100 4″ 170 124 17.5 157 218 14 F07 91 54 10
125 5″ 185 144 17.5 186 241 14 F07 114 57 15
150 6″ 203 150 18.5 216 264 17 F10 145 57 20
200 8″ 239 186 24.5 269 325 22 F10 192 64 23
250 10″ 275 226 24.5 324 394 22 F10 240 71 42
300 12″ 307 251 30 380 471 27 F12 285 81 60
350 14″ 337 294 30 416 520 27 F12 328 92 100
400 16″ 368 320 30 476 585 27 F14 373 102 155
450 18″ 406 341 39 534 625 36 F16 422 114 200
500 20″ 442 383 49 588 693 46 F16 470 127 270
600 24″ 493 442 49 692 807 46 F25 570 154 420

CLASS 300LB

SIZE A B C D D1 E Top Flange G L WT(kg)
DN INCH Class300
50 2″ 126 79 13.5 92 155 11 F05 45 43 6
65 2 1/2″ 126 87 13.5 105 178 11 F05 45 46 7
80 3″ 145 100 17.5 130 199 11 F07 72 48 10
100 4″ 170 124 17.5 157 243 14 F07 91 54 12
125 5″ 185 144 17.5 186 265 14 F07 114 57 18
150 6″ 203 150 18.5 216 312 17 F10 145 57 25
200 8″ 257 204 24.5 269 370 22 F10 192 73 40
250 10″ 288 238 30 324 438 27 F12 240 83 65
300 12″ 330 268 30 380 512 27 F12 285 92 100
350 14″ 337 294 39 416 579 36 F14 320 117 200
400 16″ 368 320 49 476 643 46 F16 363 133 260
450 18″ 406 341 49 534 705 46 F16 400 149 380
500 20″ 442 383 49 588 769 46 F25 450 159 470
600 24″ 500 442 58 692 908 55 F25 550 181 780