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Lug-style Butterfly Valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.
Lug-style Butterfly Valves used in dead end service generally has a reduced pressure rating. For example, a lug-style butterfly valve mounted between two flanges has a 1,000 kPa (150 psi) pressure rating. The same valve mounted with one flange, in dead end service, has a 520 kPa (75 psi) rating. Lugged valves are extremely resistant to chemicals and solvents and can handle temperatures up to 200 °C, which makes it a versatile solution.
Main Specification
| Size | PN | Meduim | Temperature | Body material | Disc material | Seat |
| DN25-DN900 | PN10-PN16 | Freshwater | -20℃-140℃ | Cast iron | SS304 | NBR |
| Seawater | Ductile iron | SS316 | EPDM | |||
| Air | WCB | PTFE | ||||
| oil | SS304/316 |
Main Dimension
| L | PN(10/16) | φB | H | H1 | G*f/K | J | H2 | φE | Z-φ | φD | φD1 | φD2 | ||
| DN | φA | N-M | ||||||||||||
| 25 | 33 | 85 | 4-12 | 55/65 | 140 | 46 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 69 | 59 | 34 |
| 32 | 33 | 100 | 4-16 | 55/65 | 140 | 46 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 69 | 59 | 34 |
| 40 | 33 | 110 | 4-16 | 55/65 | 147 | 53 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 80 | 68 | 44 |
| 50 | 42 | 125 | 4-16 | 65/90 | 195 | 55 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 95 | 82 | 55 |
| 65 | 44 | 145 | 4-16 | 65/90 | 217 | 64 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 114 | 97 | 69 |
| 80 | 44 | 160 | 8-16 | 65/90 | 232 | 73 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 126 | 113 | 81 |
| 100 | 50 | 180 | 8-16 | 90 | 270 | 88 | 16*11/11 | 1-5 | 20/27 | 70 | 4-10 | 154 | 139 | 108 |
| 125 | 56 | 210 | 8-16 | 90 | 292 | 102 | 19*13/14 | 1-5 | 20/27 | 70 | 4-10 | 180 | 163 | 135 |
| 150 | 56 | 240 | 8-20 | 90 | 318 | 115 | 19*13/14 | 1-5 | 20/27 | 70 | 4-10 | 206 | 195 | 154 |
| 200 | 60 | 295 | 8-20/12-20 | 120/150 | 390 | 149 | 22*16/17 | 1-5 | 25/40 | 102 | 4-12 | 264 | 250 | 205 |
| 250 | 68 | 350/355 | 12-20/12-24 | 120/150 | 457 | 184 | 30*22/22 | 1-8 | 30/45 | 102 | 4-12 | 320 | 305 | 255 |
| 300 | 78 | 400/410 | 12-20/12-24 | 150 | 518 | 207 | 30*22/22 | 1-8 | 30/50 | 102/125 | 4-12/14 | 370 | 352 | 302 |
| 350 | 78 | 460/470 | 1620/16-24 | 150 | 610 | 247 | 35/27 | 1-8 | 35/55 | 102/125 | 4-12/14 | 430 | 405 | 345 |
| 400 | 102 | 515/525 | 16-24/16-27 | 150/200 | 650 | 275 | 40/27 | 1-10 | 35/64 | 125/140 | 4-14/18 | 480 | 455 | 395 |
| 450 | 114 | 565/585 | 20-24/20-27 | 210 | 713 | 307 | 50/36 | 1-12 | 50/80 | 140/165 | 4-18/22 | 550 | 515 | 450 |
| 500 | 127 | 620/650 | 20-24/20-30 | 210 | 768 | 330 | 50/36 | 1-12 | 50/80 | 165 | 4-22 | 590 | 565 | 500 |
| 600 | 151 | 725/770 | 20-24/20-33 | 210 | 919 | 400 | 60/46 | 2-16 | 50/80 | 165 | 4-22 | 695 | 674 | 585 |
| 700 | 163 | 840 | 24-27/24-33 | 300 | 1144 | 520 | 60/46 | 2-18 | 55/82 | 254 | 8-18 | 787 | 760 | 705 |
| 800 | 190 | 950 | 24-30/24-36 | 300 | 1263 | 591 | 60/46 | 2-20 | 55/82 | 254 | 8-18 | 905 | 878 | 810 |
| 900 | 203 | 1050 | 28-30/28-36 | 300 | 1376 | 656 | 75/55 | 2-22 | 55/118 | 254 | 8-18 | 970 | 955 | 885 |
Lug-style Butterfly Valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.
Lug-style Butterfly Valves used in dead end service generally has a reduced pressure rating. For example, a lug-style butterfly valve mounted between two flanges has a 1,000 kPa (150 psi) pressure rating. The same valve mounted with one flange, in dead end service, has a 520 kPa (75 psi) rating. Lugged valves are extremely resistant to chemicals and solvents and can handle temperatures up to 200 °C, which makes it a versatile solution.
Main Specification
| Size | PN | Meduim | Temperature | Body material | Disc material | Seat |
| DN25-DN900 | PN10-PN16 | Freshwater | -20℃-140℃ | Cast iron | SS304 | NBR |
| Seawater | Ductile iron | SS316 | EPDM | |||
| Air | WCB | PTFE | ||||
| oil | SS304/316 |
Main Dimension
| L | PN(10/16) | φB | H | H1 | G*f/K | J | H2 | φE | Z-φ | φD | φD1 | φD2 | ||
| DN | φA | N-M | ||||||||||||
| 25 | 33 | 85 | 4-12 | 55/65 | 140 | 46 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 69 | 59 | 34 |
| 32 | 33 | 100 | 4-16 | 55/65 | 140 | 46 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 69 | 59 | 34 |
| 40 | 33 | 110 | 4-16 | 55/65 | 147 | 53 | 9.5*7/11 | / | 15/27 | 45/50 | 4-5.2/7.5 | 80 | 68 | 44 |
| 50 | 42 | 125 | 4-16 | 65/90 | 195 | 55 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 95 | 82 | 55 |
| 65 | 44 | 145 | 4-16 | 65/90 | 217 | 64 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 114 | 97 | 69 |
| 80 | 44 | 160 | 8-16 | 65/90 | 232 | 73 | 14*10/11 | 1-3 | 15/27 | 50/70 | 4-7.5/10 | 126 | 113 | 81 |
| 100 | 50 | 180 | 8-16 | 90 | 270 | 88 | 16*11/11 | 1-5 | 20/27 | 70 | 4-10 | 154 | 139 | 108 |
| 125 | 56 | 210 | 8-16 | 90 | 292 | 102 | 19*13/14 | 1-5 | 20/27 | 70 | 4-10 | 180 | 163 | 135 |
| 150 | 56 | 240 | 8-20 | 90 | 318 | 115 | 19*13/14 | 1-5 | 20/27 | 70 | 4-10 | 206 | 195 | 154 |
| 200 | 60 | 295 | 8-20/12-20 | 120/150 | 390 | 149 | 22*16/17 | 1-5 | 25/40 | 102 | 4-12 | 264 | 250 | 205 |
| 250 | 68 | 350/355 | 12-20/12-24 | 120/150 | 457 | 184 | 30*22/22 | 1-8 | 30/45 | 102 | 4-12 | 320 | 305 | 255 |
| 300 | 78 | 400/410 | 12-20/12-24 | 150 | 518 | 207 | 30*22/22 | 1-8 | 30/50 | 102/125 | 4-12/14 | 370 | 352 | 302 |
| 350 | 78 | 460/470 | 1620/16-24 | 150 | 610 | 247 | 35/27 | 1-8 | 35/55 | 102/125 | 4-12/14 | 430 | 405 | 345 |
| 400 | 102 | 515/525 | 16-24/16-27 | 150/200 | 650 | 275 | 40/27 | 1-10 | 35/64 | 125/140 | 4-14/18 | 480 | 455 | 395 |
| 450 | 114 | 565/585 | 20-24/20-27 | 210 | 713 | 307 | 50/36 | 1-12 | 50/80 | 140/165 | 4-18/22 | 550 | 515 | 450 |
| 500 | 127 | 620/650 | 20-24/20-30 | 210 | 768 | 330 | 50/36 | 1-12 | 50/80 | 165 | 4-22 | 590 | 565 | 500 |
| 600 | 151 | 725/770 | 20-24/20-33 | 210 | 919 | 400 | 60/46 | 2-16 | 50/80 | 165 | 4-22 | 695 | 674 | 585 |
| 700 | 163 | 840 | 24-27/24-33 | 300 | 1144 | 520 | 60/46 | 2-18 | 55/82 | 254 | 8-18 | 787 | 760 | 705 |
| 800 | 190 | 950 | 24-30/24-36 | 300 | 1263 | 591 | 60/46 | 2-20 | 55/82 | 254 | 8-18 | 905 | 878 | 810 |
| 900 | 203 | 1050 | 28-30/28-36 | 300 | 1376 | 656 | 75/55 | 2-22 | 55/118 | 254 | 8-18 | 970 | 955 | 885 |
