| Valve Type: | Concentric butterfly valve | Structure: | Concentric |
| Standard: | EN/DIN/API | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -20°C<T<120°C | Operation: | Handle/Lever |
This U-type flange butterfly valve features an integrated U-shaped valve body with high rigidity and deformation resistance. Equipped with integral flanges on both ends, it ensures firm pipeline connection and excellent vibration resistance. With a compact overall length, it saves installation space effectively. The valve operates via 90-degree rotary movement, requiring low operating torque and enabling fast opening and closing. Its simplified structure also facilitates easy on-site assembly and routine maintenance.
The GGG40 U type valve body is designed with an integrated U-shaped design, which has strong rigidity and is not easily deformed. The overall size is small and lightweight, greatly saving installation space. Equipped with flanges at both ends, the pipeline is firmly connected and has good seismic resistance. Compared with traditional flange butterfly valves, it is easier to install and suitable for various pipeline layouts.
Adopting a 90 ° rotary opening and closing, with low operating torque and fast switching speed; Smooth flow channels, low flow resistance, and high medium transport efficiency. The bf U type can be paired with various driving modes such as manual, worm gear, pneumatic, electric, etc., to meet the needs of manual control and automation working conditions, and is widely applicable in various scenarios.
There are two types of structures: soft seal and hard seal. Soft seal achieves zero leakage, while hard seal is resistant to high temperature, erosion, and wear. The overall components are streamlined, with stable operation and low failure rate. Daily maintenance and upkeep are convenient, and long-term usage costs are lower.
Standard export wooden case packaging
This U type double flange butterfly valve is widely used in municipal water supply and drainage, fire protection systems, building HVAC and cooling water pipelines. It also serves general industries like chemical, papermaking and food processing.
| Body | Disc | Stem | Bushing | Seat | ||||
|---|---|---|---|---|---|---|---|---|
| Name | Code | Name | Code | Name | Name | Name | Code | Working temp (°C) |
| Cast iron | Z | Plated ductile iron | B1 | Stainless steel Carbon steel |
Lubrized bronze PTFE |
NR | X1 | -20 ~ +85℃ |
| Ductile iron | Q | Aluminum bronze | B2 | Hypalon | X2 | -23 ~ +121℃ | ||
| Aluminum bronze | T | ZG1Cr18Ni9Ti Stainless steel | B3 | EPDM | X3 | -23 ~ +121℃ | ||
| ZG1Cr13Ni9Ti Stainless steel | P | Titanium steel | B4 | Neoprene | X4 | -7 ~ +93℃ | ||
| CF8M Stainless steel | R | CF8M Stainless steel | B5 | NBR | X5 | -23 ~ +100℃ | ||
| Carbon steel | C | Carbon steel | B6 | Wear-resistant rubber | X6 | -10 ~ +100℃ | ||
| CF8 Stainless steel | - | CF8 Stainless steel | B7 | VITON | X7 | -23 ~ +200℃ | ||
| - | - | - | - | Hear-resistant rubber | X9 | -23 ~ +135℃ | ||
| - | - | - | - | PTFE | F4 | +10 ~ +150℃ | ||
| Specification | A | B | C | ΦD | ΦE | ΦG | f | H | J | ΦK | L | n-Φ1 | Φ2 | α | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | inch | ||||||||||||||
| 100 | 4 | 200 | 114 | 52.07 | 104 | 70 | 13 | 55 | 25.97 | 90.03 | 90 | 28 | 4-10 | 15.77 | 45 |
| 125 | 5 | 213 | 127 | 55.5 | 123.3 | 70 | 13 | 55 | 33.9 | 110.1 | 90 | 28 | 4-10 | 18.92 | 45 |
| 150 | 6 | 226 | 139 | 55.75 | 155.6 | 70 | 13 | 55 | 49.93 | 145.27 | 90 | 28 | 4-10 | 18.92 | 45 |
| 200 | 8 | 260 | 175 | 60.58 | 202.5 | 102 | 13 | 70 | 70.96 | 193.23 | 125 | 45 | 4-12 | 22.1 | 45 |
| 250 | 10 | 292 | 203 | 68 | 250.5 | 102 | 13 | 70 | 91.25 | 241 | 125 | 45 | 4-12 | 28.45 | 45 |
| 300 | 12 | 337 | 242 | 76.9 | 301.6 | 102 | 20 | 70 | 112.35 | 291.63 | 125 | 45 | 4-12 | 31.6 | 45 |
| 350 | 14 | 368 | 267 | 76.17 | 333.3 | 125 | 20 | 85 | 128.57 | 324.48 | 150 | 45 | 4-14 | 31.6 | 45 |
| 400 | 16 | 400 | 309 | 85.7 | 389.6 | 140 | 20 | 100 | 151.95 | 380 | 175 | 51 | 4-18 | 33.15 | 45 |
| 450 | 18 | 422 | 328 | 104.6 | 440.51 | 140 | 20 | 100 | 167.96 | 427.91 | 175 | 51 | 4-18 | 38 | 45 |
| 500 | 20 | 480 | 361 | 130.28 | 491.6 | 140 | 20 | 100 | 180.66 | 474 | 175 | 57 | 4-18 | 41.15 | 45 |
| 600 | 24 | 562 | 459 | 151.36 | 592.5 | 165 | 22 | 130 | 220.57 | 572.84 | 210 | 72 | 4-22 | 50.65 | 45 |
| 700 | 28 | 624 | 520 | 163 | 695 | 254 | 30 | 200 | 266 | 675.62 | 300 | 82 | 8-18 | 63.35 | 22.5 |
| 800 | 32 | 672 | 591 | 188 | 794.7 | 254 | 30 | 200 | 303.35 | 772.14 | 300 | 82 | 8-18 | 63.35 | 22.5 |
| 900 | 36 | 720 | 656 | 203 | 864.7 | 254 | 30 | 200 | 330.85 | 840.53 | 300 | 110 | 8-18 | 75 | 22.5 |
| 1000 | 40 | 800 | 721 | 216 | 965 | 254 | 30 | 200 | 374.5 | 940.52 | 300 | 142 | 8-18 | 85 | 22.5 |
| 1200 | 48 | 940 | 864 | 254 | 1160 | 298 | 34 | 230 | 453 | 1131 | 350 | 150 | 8-22 | 105 | 22.5 |