Manual Seal Flange Butterfly Valves are a type of quarter-turn valve used to control the flow of various fluids in industrial applications. They are known for their simplicity, reliability, and ease of operation.
Manual Seal Flange Butterfly Valves are a type of quarter-turn valve used to control the flow of various fluids in industrial applications. They are known for their simplicity, reliability, and ease of operation.
Durability and Longevity
Sturdy Construction: Manual Seal Flange Butterfly Valves are known for their robust construction, which is essential in industrial settings where the valve may be subjected to continuous use and harsh conditions. The use of high-quality materials ensures that the valve can withstand the test of time without compromising its performance.
Corrosion Resistance: These valves are often made from materials like stainless steel, which are highly resistant to corrosion. This resistance is crucial in environments where the valve may be exposed to corrosive chemicals or aggressive fluids, thereby extending the valve's service life.
Ease of Operation
Manual Operation: The manual operation feature of the Seal Flange Butterfly Valve allows for precise control over the flow of fluids. This manual control is beneficial in situations where automated systems may not be feasible or where manual override is necessary for safety or process control.
Lightweight Design: Despite their robustness, these valves are designed to be lightweight, which makes them easier to handle and install. This feature is particularly advantageous in environments where valves need to be frequently moved or replaced.
Flow Control and Efficiency
Precise Flow Control: The butterfly valve's design allows for a high degree of flow control, with the ability to regulate the flow from fully open to fully closed positions. This precision is crucial in processes where fluid flow needs to be tightly controlled.
Low Flow Resistance: The streamlined design of the butterfly valve reduces the resistance to flow, which can lead to energy savings and improved efficiency in fluid transport systems.
Sealing and Leakage Prevention
Seal Flange Design: The Seal Flange Butterfly Valve is designed with a flange that provides a secure seal, preventing leakage and ensuring that the valve can operate under pressure without compromising its integrity.
Versatile Sealing Options: These valves often come with a variety of sealing options, such as rubber, EPDM, or PTFE, which can be chosen based on the specific fluid being handled. This versatility allows the valve to be used in a wide range of applications without the risk of chemical incompatibility.
Maintenance and Reliability
Low Maintenance: The simplicity of the butterfly valve design means that it requires less maintenance. There are fewer moving parts compared to other types of valves, which reduces the likelihood of mechanical failure and the need for frequent repairs.
Reliable Performance: The Manual Seal Flange Butterfly Valve is known for its reliable performance, even in demanding conditions. Its ability to maintain a tight seal and withstand high pressures makes it a dependable choice for critical applications.
Cost-Effectiveness
Cost-Efficient: Despite their high-quality construction, these valves are often more cost-effective than other types of valves due to their lower maintenance requirements and longer service life.
Energy Savings: The reduced flow resistance and efficient operation of the butterfly valve can lead to significant energy savings, particularly in large-scale industrial processes where fluid flow is a significant factor in energy consumption.
In summary, the Manual Seal Flange Butterfly Valve offers a combination of durability, ease of operation, precise flow control, sealing reliability, low maintenance, cost-effectiveness, safety, and versatility that makes it an attractive choice for a wide range of industrial applications. Its design and construction ensure that it can meet the demands of modern industry while providing a reliable and efficient solution for fluid control.
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 |
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