flanged butterfly valve

Body:   ASTM A536 65-45-12, WCB, CF8M
Bonded with NBR or EPDM
Disc:  ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
Stem:  SS420,SS431
Body style:   Flange
Nominal diameter:   2″ – 88″ (DN50mm – DN2000mm)
Top flange:  ISO5211
Operating pressure:  16bar for DN50-DN300, 10bar for DN350-DN2200







Description

Double flanged butterfly valve features a bonded liner extending over the flanges. The double flange design is suitable for high pressure loading and for use in heavy industry, shipbuilding, severe vacuum applications and water treatment industry like potable water, water treatment and wastewater applications.

FEATURES
1,ISO5211 top flange together with stem heat suitable for direct mounting of actuators
2,Stem anti-blowout design keep safety in field use
3,Bonded seat protects the body and shaft out of contact with medium
4,No exposed pins or bolts for stem-to-disc connection
5,Single flange mounting is possible
6,Can be installed in any desired position
7,Bubble-tight shut off at full pressure rating
8,Large flow capacity and enough strength

specification

PARTS LIST AND MATERIAL SPECIFICATION

NO. Part name Material
1 Body ASTM A536 65-45-12, WCB, CF8M
Bonded with NBR or EPDM
2 Disc ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
3 Stem SS420,SS431
4 Screw SS304
5 Retainer SS201
6 Weather seal NBR
7 Bearing RPTFE with Graphite on I.D.
8 Lower Stem SS420, SS431
9 Bottom cover Same as body
10 Bolt SS304
11 Screw SS304

TECHNICAL DATA

Body style Flange
Nominal diameter 2″ – 88″ (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 150AS 4087
PN10/ PN16JIS 5K/10K
Applications Potable Water, Wastewater, Seawater, HVAC
Operation Hand lever, gear box, pneumatic actuator, electric actuator

DIMENSIONS (mm)

flange butterfly valve

 

SIZE A B C D E F n d G J L WT(kg)
DN INCH
50 2″ 142 80 13.5 165 9 50 4 8 70 15 108 9
65 2 1/2″ 155 89 13.5 185 9 50 4 8 70 15 112 10
80 3″ 161 95 13.5 200 9 50 4 8 70 17 114 12
100 4″ 180 114 13.5 229 11 70 4 10 90 17 127 16
125 5″ 193 127 17.5 254 14 70 4 10 90 19 140 24
150 6″ 205 139 17.5 285 14 70 4 10 90 19 140 29
200 8″ 250 175 24.5 343 17 102 4 12 125 21 152 39
250 10″ 282 203 25 406 22 102 4 12 125 23 165 60
300 12″ 326 242 25 483 22 102 4 12 125 24 178 82
350 14″ 358 267 30 533 27 125 4 14 150 24 190 108
400 16″ 380 301 30 597 27 125 4 14 150 28 216 145
450 18″ 422 381 39 640 36 140 4 18 175 33 222 183
500 20″ 479 387 39 710 36 140 4 18 175 40 229 230
600 24″ 562 457 49 840 46 165 4 22 210 40 267 303
700 28″ 560 465 95 910 63.35 254 8 18 300 40 292 410
750 30″ 610 508 95 984 63.35 254 8 18 300 43 308 552
800 32″ 620 519 95 1025 63.35 254 8 18 300 43 318 610
900 36″ 692 576 130 1125 75 254 8 18 300 46 330 750
1000 40″ 735 640 130 1255 85 254 8 22 300 50 410 945
1100 44″ 813 735 150 1355 85 254 8 22 300 53 450 1120
1200 48″ 917 783 150 1485 105 298 8 22 350 57 470 1350
1400 56″ 1000 925 200 1685 120 356 8 32 415 60 530 1700
1500 60″ 1050 950 200 1820 140 356 8 32 415 78 570 2000
1600 64″ 1150 1045 200 1930 140 356 8 32 415 65 600 2500
1800 72″ 1260 1156 280 2130 160 406 8 40 475 70 670 3500
2000 80″ 1363 1350 280 2345 160 406 8 40 475 75 760 4000
2200 88″ 1500 1430 300 2555 180 483 12 40 560 85 636 4500

 

Soft sealing butterfly valve selection

PTFE butterfly valve

Butterfly Valve Seat Seal Selection

Material Temperature Use Description NBR -23℃ ~ 82℃ Shot time-23℃ ~120℃ Buna-NBR:(Nitrile Butadiene Rubber ) has good tensile strength and resistance to abrasion.It is also resistant to hydrocarbon products.It is a good general-service material for use in water,vacuum,acid,salts,alkalines,fats,oils,greases,hydraulic oils and ethylene glycol. Buna-N can not use for acetone,ketones and nitrated or chlorinated hydrocarbons. Cold-resisting NBR -40℃ ~ 100℃ Shot time-45℃ ...
Read More
butterfly valve

Butterfly valve body material selection

Material Working condition Main medium Type Standard PN / MPa t / ℃ Grey iron HT200 ≤1.6 ≤200 Water, steam, oil Ductile iron QT450 ≤4.0 ≤350 Fine steel casting iron WCB ≤16 ≤450 Acid resisting steel with nickle, chromium, titanium 304 ≤6.4 ≤200 For caustic substance like nitric acid —100 ~ —196 Ethylene etc, low temperature medium ≤600 High temperature steam, ...
Read More
motorised carbon steel butterfly valve

Butterfly valve disc material selection

Butterfly valve disc material selection Caustic substance Material selection Ⅰ Ⅱ Low pressure steam WCB Stainless steel Petroleum Cast Iron WCB Crude petroleum Cast Iron Bronze Gasoline WCB Bronze Compressed air Bronze Cast Iron Coal gas Cast Iron Bronze Nitric acid Stainless steel Oil of vitriol WCB High silicon cast iron ...
Read More
Butterfly valve Selection method

Butterfly valve Selection method

The selection of butterfly valve mainly refers to the valve body material, valve plate material, valve seat material, valve diameter and other parameters. Body material Disc material Seat material Body style Flange  accommodation Size Operator type Cast iron Ductile iron Stainless steel WCB ASTM A536 65-45-12 Nylon coated, CF8 CF8M 2507 1.4462 EPDM NBR FRM PTFE Wafer Lug Flange EN ...
Read More