Custom Gear box operation DI material U type flange butterfly valve Suppliers, Manufacturers
Product Description
| 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 |
Characteristics
Crafted with a one-piece U-shaped body, this DI U type butterfly valve boasts great rigidity and anti-deformation performance. The built-in flanges at two ends guarantee tight pipeline connection and strong vibration resistance. Its short overall structure helps save installation space. Designed for 90° rotation, it needs little torque and opens/closes swiftly. The streamlined structure also makes installation and daily maintenance a breeze.
Advantages
Made of GGG40 material, the GGG40 U type valve one-piece U-shaped valve body delivers outstanding rigidity and anti-deformation performance. Compact and lightweight, it greatly reduces space requirements for installation. Built-in end flanges ensure secure pipe connection and superior seismic performance. It is simpler to mount than conventional flange butterfly valves and fits diverse piping arrangements.
This DI U type butterfly valve opens and closes via 90° rotation with minimal operating torque and rapid response. Its full-flow design creates low flow resistance and boosts fluid transmission efficiency. Compatible with manual, worm gear, pneumatic and electric actuators, it adapts to both manual operation and automated industrial applications for wide-ranging use.
It U-type bfv is available in soft seal and hard seal configurations. The soft seal version provides bubble-tight shutoff, while the hard seal variant withstands high temperatures, erosion and abrasion. With a simplified component layout, the valve runs reliably with few faults. Routine maintenance is hassle-free, helping cut long-term operational costs.
Packing
Standard export wooden case packaging
Application Scenarios
Widely applied across multiple sectors, this U-type double flange butterfly valve is ideal for municipal water supply and drainage, fire protection, building HVAC and cooling water systems. It also works well in general industrial fields including chemical, papermaking and food processing
Material Specifications
| 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℃ | ||||||
Dimension Parameters
| 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 |
Frequently Asked Questions (FAQ)
The valve is manufactured in strict compliance with major international standards including EN, DIN, and API standards, guaranteeing zero-leakage performance and high system compatibility.
The GGG40 ductile iron U-shaped body structure provides superior rigidity and anti-deformation properties. Its built-in end flanges offer enhanced seismic resistance while saving critical installation space.
The standard operating temperature ranges between -20°C and 120°C. Depending on seat material choices (such as Viton or PTFE), temperature tolerance can reach up to +200°C.
It supports manual handle/lever operation, worm gear handwheels, as well as pneumatic and electric actuators for automated industrial piping control.
Yes, the valve is engineered for bidirectional sealing performance with zero leakage capability under standard working pressures.
It is widely utilized in municipal water supply & drainage, HVAC, fire protection systems, building cooling water, as well as chemical, papermaking, and food processing applications.
