Lug butterfly valve

Body:         ASTM A536 65-45-12, WCB, CF8M
Disc:          ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
Seat:          EPDM, NBR, FPM
Stem:         SS420, SS431
Body style:       FLug
Nominal diameter:            2″ – 80″ (DN50mm – DN2000mm)
Top flange:                          ISO5211
Operating pressure:          16bar for DN50-DN300, 10bar for DN350-DN2200
Flange accommodation:   EN 1092 PN 6/PN10/PN16,ASME Class,JIS 5K/10K







Description

Llug concentric butterfly valve features a cartridge type seat, streamlined disc and strong stem-to-disc connection for easy use in many industrial applications such as food and beverage, pulp and paper, chemical, mining, water treatment, power plants, etc. Full rated unidirectional dead-end service is achieved by a lip designed in the lug body.

FEATURES

1,ISO5211 top flange together with stem square suitable for direct mounting of actuators
2,Stem anti-blowout design keep safety in field use
3,Dirtscraper prevents moisture penetrating into the shaft area
4,Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
5,Full rated unidirectional dead-end service is achieved by a lip designed in the lug body
6,No exposed pins or bolts for stem-to-disc connection
7,No need for flange gaskets
8,No risk of damage to the valve during installation in closed position
9,Bubble-tight shut of at full pressure rating
10,Large flow capacity and enough strength because of streamline disc design
11,Plug with O-ring sealing eliminates any leakage from the stem

lug butterfly valve Parts

PARTS LIST AND MATERIAL SPECIFICATION

NO. Part name Material
1 Body ASTM A536 65-45-12, WCB, CF8M
2 Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
3 Seat EPDM, NBR, FPM
4 Stem SS420, SS431
5 Lower Stem SS420, SS431
6 Retainer Nylon for DN50-DN300, SS304 for DN350-DN2000
7 Bearing RPTFE with Graphite on I.D.
8 Weather seal NBR
9 Weather seal NBR
10 Plug Steel galvanized for DN50-DN300, Cover plate for
DN350-DN2000 material same as body with SS304 bolts
11 Screw SS304

TECHNICAL DATA

Body style FLug
Nominal diameter 2″ – 80″ (DN50mm – DN2000mm)
Top flange ISO5211
Operating pressure 16bar for DN50-DN300, 10bar for DN350-DN2200
Temperature range -20 °C to + 140 °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
Applications Potable Water, Wastewater, Seawater, HVAC
Operation Hand lever, gear box, pneumatic actuator, electric actuator

DIMENSIONS (mm)

lug butterfly valve size

SIZE A B C D E F d G H J L WT(kg)
DN INCH
50 2″ 126 78 13.5 117 9 50 8 70 31 34 43 2.8
65 2 1/2″ 134 84 13.5 131 9 50 8 70 45 36 46 3.7
80 3″ 138 92 13.5 176 9 50 8 70 64 36 46 5.1
100 4″ 167 114 13.5 206 11 70 10 90 91 40 52 6.9
125 5″ 180 129 17.5 236 14 70 10 90 110 44 56 9.3
150 6″ 203 144 17.5 258 14 70 10 90 146 44 56 10.5
200 8″ 228 179 24.5 321 17 102 12 125 193 50 60 17.4
250 10″ 266 216 25 395 22 102 12 125 241 57 68 28.1
300 12″ 291 247 25 461 22 102 12 125 292 66 78 40
350 14″ 332 273 30 511 27 125 14 150 329 62 78 55
400 16″ 363 317 30 580 27 125 14 150 376 84 102 85
450 18″ 397 348 39 630 36 140 18 175 425 94 114 114
500 20″ 425 393 39 700 36 140 18 175 475 110 127 144
600 24″ 498 453 49 823 46 165 22 210 573 120 154 227
700 28″ 626 531 90 928 63.1 254 18 300 674 54 165 342
750 30″ 660 564 90 984 63.1 254 18 300 727 54 165 400
800 32″ 666 601 90 1061 63.1 254 18 300 771 60 190 485
900 36″ 722 660 110 1170 74.7 254 18 300 839 60 203 605
1000 40″ 806 728 120 1290 83.7 298 22 350 939 60 216 776
1100 44″ 826 771 140 1404 94.7 298 22 350 1036 50 255 985
1200 48″ 941 874 150 1511 104.7 298 22 350 1137 62 276 1190
1400 56″ 1000 940 175 1685 139.9 356 32 415 1351 62 279 1380
1600 64″ 1155 1085 195 1930 160 356 32 415 1548 65 318 2054
1800 72″ 1200 1170 195 2170 174.5 406 39 475 1703 70 356 3075
2000 80″ 1363 1360 245 2345 199 406 39 475 1938 75 406 4500