Gear box operation DI material U type flange butterfly valve
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
1.Structural & Installation Benefits 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.
2.Flow & Operational Benefits
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.
3.Sealing & Maintenance Benefits
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
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℃ |
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Z |
Plated ductile iron |
B1 |
Stainless steel Carbon steel |
Lubrized bronze PTFE |
NR |
X1 |
-20~+85℃ |
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Q |
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B2 |
Hypalon |
X2 |
-23~+121℃ |
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T |
ZG1Cr18Ni9Ti |
B3 |
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X3 |
-23~+121℃ |
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ZG1Cr13Ni9Ti |
P |
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B4 |
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X4 |
-7~+93℃ |
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CF8M |
R |
CF8M |
B5 |
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X5 |
-23~+100℃ |
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C |
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B6 |
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X6 |
-10~+100℃ |
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CF8 |
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CF8 |
B7 |
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X7 |
-23~+200℃ |
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X9 |
-23~+135℃ |
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F4 |
+10~+150℃ |
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Dimension

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Specification |
A |
B |
C |
ΦD |
ΦE |
ΦG |
f |
H |
J |
ΦK |
L |
n-Φ1 |
Φ2 |
α |
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mm |
inch |
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|
100 |
4 |
200 |
114 |
52.07 |
104 |
70 |
13 |
55 |
25.97 |
90.03 |
90 |
28 |
4-10 |
15.77 |
45 |
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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 |
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500 |
20 |
480 |
361 |
130.28 |
491.6 |
140 |
20 |
100 |
180.66 |
474 |
175 |
57 |
4-18 |
41.15 |
45 |
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600 |
24 |
562 |
459 |
151.36 |
592.5 |
165 |
22 |
130 |
220.57 |
572.84 |
210 |
72 |
4-22 |
50.65 |
45 |
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700 |
28 |
624 |
520 |
163 |
695 |
254 |
30 |
200 |
266 |
675.62 |
300 |
82 |
8-18 |
63.35 |
22.5 |
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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 |
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1200 |
48 |
940 |
864 |
254 |
1160 |
298 |
34 |
230 |
453 |
1131 |
350 |
150 |
8-22 |
105 |
22.5 |
















