Durability and Longevity
Sturdy Construction: Metal Hard Sealed Flange Butterfly Valves are designed with a robust construction that can withstand the rigors of industrial applications. The use of high-quality metals ensures that the valve can endure high pressures and temperatures without compromising its structural integrity.
Corrosion Resistance: These valves are often made from stainless steel or other corrosion-resistant materials, making them suitable for use in environments where corrosive fluids are present. This resistance to corrosion extends the valve's lifespan and reduces the need for frequent replacements.
Ease of Operation
Manual Operation: The manual operation of these valves allows for precise control over the flow of fluids. This is particularly beneficial in situations where automated control is not required or where a more hands-on approach is like.
Low Friction: The hard seal design reduces friction within the valve, making it easier to open and close. This feature is especially important in applications where the valve may need to be operated frequently.
Sealing Performance
Tight Shut-Off: Metal Hard Sealed Flange Butterfly Valves are known for their good sealing performance. The hard seal, often made from materials like tungsten carbide or other hard metals, ensures a tight seal even under high pressure, preventing leaks and maintaining fluid integrity.
Versatility in Sealing: These valves can be customized with different sealing materials to suit a variety of fluids, including those that are abrasive or corrosive. This versatility makes them a popular choice in diverse industries.
Flow Control
Precise Flow Regulation: The quarter-turn operation of the valve allows for precise control over the flow rate. This is particularly important in processes where the flow must be carefully regulated to ensure good performance.
Low Flow Resistance: The streamlined design of butterfly valves results in low flow resistance, which can help to reduce energy costs and improve the efficiency of fluid transfer systems.
Maintenance and Reliability
Low Maintenance: Metal Hard Sealed Flange Butterfly Valves are designed for low maintenance, which can save time and resources in the long run. Their hard seal design reduces wear and tear, thus fewer maintenance issues.
Reliability: The reliability of these valves is a key selling point. They are designed to perform consistently over time, even in demanding conditions. This reliability is crucial in industries where downtime can be costly.
Cost-Effectiveness
Cost-Efficiency: While the initial cost of these valves may be higher than some other types of valves, their long-term cost-effectiveness is a significant advantage. Their durability, low maintenance, and reliability mean that they can provide a better return on investment over time.
Energy Savings: The low flow resistance of butterfly valves can contribute to energy savings, as less power is needed to push fluids through the system. This can be a significant advantage in large-scale industrial operations where energy costs are a major concern.
In summary, Metal Hard Sealed Flange Butterfly Valves offer a combination of durability, ease of operation, sealing performance, flow control, maintenance efficiency, cost-effectiveness, safety, compliance, and customization that make them a valuable asset in many industrial settings. Their ability to provide reliable performance in a variety of conditions, along with their long service life, makes them an good choice for applications where fluid control is critical.
Main Parts Materials
Part name |
Material name |
Valve plate |
WCB、Stainless Steel |
Sealing ring |
Stainless steel Rubber asbestos sheet (flexible graphite) |
Valve stem |
Stainless Steel |
Performance Specifications
Nominal pressure PN (MPa) |
1.0 |
1.6 |
Strength test PN (MPa) |
1.5 |
2.4 |
Sealing test PN (MPa) |
1.1 |
1.76 |
Applicable temperature PN (℃) |
-30~+400(600) |
Applicable medium |
Water, steam, oil |
Drive mode |
Manual, electric, pneumatic |
Structural form
Stacked sealing ring, triple eccentric structure, inclined cone table seal.
Flange butterfly valve dimensions and connection dimensions
Nominal diameter(mm) |
Size(mm) |
Weight(kg) |
L |
D |
D1 |
D2 |
a |
b |
n-d0 |
4-M |
H |
H2 |
L3 |
L4 |
50 |
108 |
102 |
125 |
165 |
3 |
20 |
418 |
M16 |
70 |
260 |
147 |
40 |
14 |
65 |
112 |
122 |
145 |
185 |
3 |
20 |
418 |
M16 |
80 |
280 |
147 |
40 |
17 |
80 |
114 |
133 |
160 |
200 |
3 |
20 |
818 |
M16 |
110 |
380 |
147 |
40 |
23.5 |
100 |
127 |
158 |
180 |
220 |
3 |
22 |
818 |
M16 |
123 |
413 |
147 |
40 |
28.5 |
125 |
140 |
184 |
210 |
250 |
3 |
22 |
818 |
M16 |
144 |
453 |
172 |
69 |
33 |
150 |
140 |
212 |
240 |
285 |
3 |
24 |
823 |
M20 |
158 |
500 |
172 |
69 |
37 |
200 |
152 |
268 |
295 |
340 |
3 |
24 |
1223 |
M20 |
193 |
560 |
172 |
69 |
57 |
250 |
165 |
320 |
355 |
405 |
3 |
26 |
1227 |
M24 |
255 |
750 |
242 |
85 |
75 |
300 |
178 |
372 |
410 |
460 |
4 |
28 |
1227 |
M24 |
295 |
860 |
336 |
95 |
117.5 |
350 |
190 |
430 |
470 |
520 |
4 |
30 |
1627 |
M24 |
320 |
960 |
290 |
105 |
154 |
400 |
216 |
482 |
525 |
580 |
4 |
32 |
1630 |
M27 |
327 |
1000 |
290 |
105 |
216 |
450 |
222 |
545 |
585 |
640 |
4 |
34 |
2030 |
M27 |
366 |
1100 |
290 |
105 |
272 |
500 |
229 |
609 |
650 |
715 |
4 |
36 |
2034 |
M30 |
406 |
1235 |
345 |
203 |
339 |
600 |
267 |
720 |
770 |
840 |
5 |
38 |
2037 |
M33 |
475 |
1460 |
420 |
238 |
474 |
700 |
292 |
800 |
840 |
910 |
5 |
40 |
2437 |
M33 |
550 |
1700 |
567 |
268 |
690 |
800 |
318 |
905 |
950 |
1025 |
5 |
42 |
2440 |
M36 |
580 |
1900 |
567 |
268 |
868 |
900 |
330 |
1005 |
1050 |
1125 |
5 |
44 |
2840 |
M36 |
640 |
2150 |
740 |
400 |
1134 |
1000 |
410 |
1110 |
1170 |
1255 |
5 |
46 |
2844 |
M39 |
720 |
2300 |
830 |
460 |
1341 |
1200 |
470 |
1330 |
1390 |
1485 |
5 |
52 |
3250 |
M45 |
815 |
2800 |
920 |
520 |
2552 |