Series D643Y Hard Seal Pneumatic Butterfly Valve
D643Y硬密封气动蝶阀
D643Y气动法兰式硬密封蝶阀是一种通过高强度合金钢板焊接而成的蝶板,绕其圆形阀杆旋转90°以实现流体的开启、关闭和流量调节的阀门。其阀杆轴线位于管道中心线位置,属于中线型结构,密封副由金属材料对金属材料构成。阀门采用法兰式连接,即阀体两端带有与管道法兰标准相匹配的连接法兰,通过螺栓螺母与管道法兰直接紧固连接。密封结构采用多层次金属硬密封技术,利用多层不锈钢片与石墨等材料复合而成的密封圈,在弹性力与介质压力的作用下实现可靠密封,具备耐高温、耐磨损、抗腐蚀等特点。该阀门通过气动装置驱动阀杆旋转90°,可实现对管道流体的快速切断与精确调节,并可选配电磁阀、限位开关等附件,实现远程自动化控制。
特点
1、Compact Structure, High Pressure Resistance: Featuring a flanged connection structure, the valve body possesses high rigidity, enabling it to withstand significant pipeline stress and medium pressure, making it suitable for medium to high-pressure conditions. The overall design is compact and relatively lightweight.
2、Quick Opening and Closing, Low Operating Torque: Employing a 90° rotary operation, the valve opens and closes rapidly and smoothly. The metal sealing pair, enhanced by a multi-layer sealing structure design, reduces friction between the disc and the seat, effectively lowering the operating torque.
3、Low Fluid Resistance, Significant Energy Saving: When the valve is fully open, the thickness direction of the disc aligns parallel to the flow direction of the medium, creating minimal obstruction to the fluid. The pressure loss approaches zero, offering excellent energy-saving benefits.
4、Reliable Sealing Performance, High Temperature and Wear Resistance: Utilizing a multi-layer metal hard seal structure, the sealing pair consists of stainless steel and temperature-resistant alloy materials. Zero-leakage sealing is achieved through elastic deformation. This structure is resistant to high temperatures, wear, and erosion, ensuring a long service life.
5、Easy Maintenance, Low Inspection and Repair Costs: The valve body features an integral or split design, facilitating easy inspection and replacement of internal sealing components. The seal ring is designed to be replaceable, allowing for on-site maintenance without needing to disassemble the entire valve, effectively reducing maintenance costs.
6、Wide Applicability: The valve body can be made from materials like carbon steel or stainless steel. The sealing surface can be overlaid with hard alloy or sprayed with wear-resistant materials. This allows the valve to be suitable for demanding conditions involving high temperatures, high pressures, and corrosive media. It is widely used in pipeline systems across industries such as petroleum, chemical, metallurgy, and power.
性能规范表
| 性能规范表Performance Specification Table | ||
|---|---|---|
| 公称压力Nominal Pressure | 1.0/1.6/2.5 | MPa |
| 强度试验压力Strength Test Pressure | 1.5/2.4/3.75 | |
| 密封试验压力Seal Test Pressure | 1.1/1.76/2.75 | |
| 适用温度Applicable Temperature | ≤550 | ℃ |
结构图
零部件名称材料表
| 名称name | 材料Materials |
|---|---|
| 阀体body | 铸钢、不锈钢、双相不锈钢Cast steel, stainless steel, duplex stainless steel |
| 蝶板disc | WCB 碳钢 / 合金钢 / 不锈钢WCB Carbon Steel / Alloy Steel / Stainless Steel |
| 阀杆stem | 2Cr13 不锈钢 / 合金钢2Cr13 Stainless Steel / Alloy Steel |
| 密封圈Sealing Ring | 不锈钢圈Stainless Steel Ring |
| 填料packing | 柔性石墨Flexible Graphite |
| 螺栓Bolt | 碳钢Carbon Steel |
| 气动执行器Pneumamic actuator | 铝合金+ 碳钢Aluminum Alloy + Carbon Steel |
外形安装尺寸表
| 公称通径Nominal Diameter (DN) | 主 要 尺 寸Main Dimensions | 法兰尺寸和螺栓规格Flange Dimensions and Bolt Specifications | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.0 MPa | 1.6 MPa | 2.5 MPa | ||||||||||
| L | H1 | H | D | D1 | n-Φd | D | D1 | n-Φd | D | D1 | n-Φd | |
| 50 | 108 | 350 | 112 | 165 | 125 | 4-18 | 165 | 125 | 4-18 | 165 | 125 | 4-18 |
| 65 | 112 | 370 | 115 | 185 | 145 | 4-18 | 185 | 145 | 4-18 | 185 | 145 | 8-18 |
| 80 | 114 | 380 | 120 | 200 | 160 | 4-18 | 200 | 160 | 8-18 | 200 | 160 | 8-18 |
| 100 | 127 | 420 | 138 | 220 | 180 | 8-18 | 220 | 180 | 8-18 | 235 | 190 | 8-22 |
| 125 | 140 | 460 | 164 | 250 | 210 | 8-18 | 250 | 210 | 8-18 | 270 | 220 | 8-26 |
| 150 | 140 | 555 | 175 | 285 | 240 | 8-22 | 285 | 240 | 8-22 | 300 | 250 | 8-26 |
| 200 | 152 | 760 | 200 | 340 | 295 | 8-22 | 340 | 295 | 12-22 | 360 | 310 | 12-26 |
| 250 | 165 | 830 | 243 | 395 | 350 | 12-22 | 405 | 355 | 12-26 | 425 | 370 | 12-30 |
| 300 | 178 | 895 | 250 | 445 | 400 | 12-22 | 460 | 410 | 12-26 | 485 | 430 | 16-30 |
| 350 | 190 | 950 | 280 | 505 | 460 | 16-22 | 520 | 470 | 16-26 | 555 | 490 | 16-33 |
| 400 | 216 | 1190 | 305 | 565 | 515 | 16-26 | 580 | 525 | 16-30 | 620 | 550 | 16-36 |
| 450 | 222 | 1255 | 350 | 615 | 565 | 20-26 | 640 | 585 | 20-30 | 670 | 600 | 20-36 |
| 500 | 229 | 1305 | 380 | 670 | 620 | 20-26 | 715 | 650 | 20-33 | 730 | 660 | 20-36 |
| 600 | 267 | 1340 | 445 | 780 | 725 | 20-30 | 840 | 770 | 20-36 | 845 | 770 | 20-39 |
| 700 | 292 | 1520 | 480 | 895 | 840 | 24-30 | 910 | 840 | 24-36 | 960 | 875 | 24-42 |
| 800 | 318 | 1710 | 530 | 1015 | 950 | 24-33 | 1025 | 950 | 24-39 | 1085 | 990 | 24-48 |
| 900 | 330 | 1810 | 580 | 1115 | 1050 | 28-33 | 1125 | 1050 | 28-39 | 1185 | 1090 | 28-48 |
| 1000 | 410 | 1960 | 650 | 1230 | 1160 | 28-36 | 1255 | 1170 | 24-42 | 1320 | 1210 | 28-58 |
| 1200 | 470 | 2250 | 760 | 1455 | 1380 | 32-39 | 1485 | 1390 | 32-48 | 1530 | 1420 | 32-56 |
