Flexible Seat Sealing Eccentric Plug Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Handle-model
PLVS driving-cap model
PLVP pneumatic model
PLVE Worm Gear model
PLVE motor model
Dimensions & constructral diagram
DN50-200 structure Flexible seat sealing eccentric plug valve constructral diagram(pic1)
Flexible seat sealing eccentric plug valve constructral diagram(pic2)
Flexible seat sealing eccentric plug valve constructral diagram(pic3)
Summary of Products
The flexible seat sealing eccentric plug valve, on which the company has introduced the design concept of latest international technology, to develop and produce new cock.
The flexible seat sealing structure overcomes traditional plug valve’s poor sealing performance and easily corrosive, unique eccentric-seal design, contrasted with traditional eccentric sealing plug valve, the flexible seat sealing eccentric plug valve greatly reduce operating torque, and minimize the wear of the sealing surface and prolong the useful life of the valve. Rectangle direct port, the flexible seat sealing eccentric plug valve, has low water head loss and excellent flow adjustmental linear. Its excellent sealing and corrosion-resistance, the ideal operation performance and long service life, is suitable for being river closure and adjust devices in the working environment as urban wastewater treatment, industrial wastewater and mud and clear water
2.Technical Parameter
Nominal diameter DN:50～800mm
Nominal pressure PN:1.0MPa
working temperature :0～70℃
intensity test pressure : 1.5MPa
sealing test pressure : 1.1MPa
Applicable medium: wastewater, raw water, clear water, air, oil(MBR)
Drive model:handle-model, worm gear-model, motor-model, pneumatic-model
Flow rate features
When it is used as the adjustmental valve, it is linear relationship between the open open degree percentage of valve and the largest flow rate percentage,you can control the flow rate by the open degree indicator.
Material of Main parts
| Valve body, cover, and gland | plug | valve seat | bearing | V-shaped sealing ring |
| Ductile Iron | Ductile Iron outsourcing NBR or EPON | pure nickle,stainless steel, or special material | bronze or brass | NBR |
Main outline connective dimension
| DN | D1 | D2 | D3 | C | n-d | m-MXn | L | H1 | H2 | ||||
| PLVL model | PLVS model | PLVG model | PLVE model | PLVP model | |||||||||
| 50 | 165 | 125 | 99 | 19 | 4-φ19 | - | 178 | 84 | 143 | 225 | 265 | 315 | 265 |
| 65 | 185 | 145 | 118 | 19 | 4-φ19 | - | 190 | 93 | 143 | 225 | 265 | 315 | 265 |
| 80 | 200 | 160 | 132 | 19 | 4-φ19 | 4-M16 viahole | 203 | 109 | 174 | 225 | 312 | 373 | 340 |
| 100 | 220 | 180 | 156 | 19 | 8-φl9 | - | 229 | 128 | 174 | 225 | 312 | 373 | 340 |
| 125 | 250 | 210 | 184 | 19 | 8-φl9 | - | 254 | 128 | 174 | 225 | 312 | 373 | 340 |
| 150 | 285 | 240 | 211 | 21 | 4-φ23 | 4-M20 viahole | 267 | 165 | - | - | 444 | 481 | 488 |
| 200 | 340 | 295 | 266 | 21 | 4-φ23 | 4-M20 viahole | 292 | 198 | - | - | 464 | 508 | 558 |
| 250 | 395 | 350 | 319 | 24 | 8-φ23 | 4-M20 depth 30 | 330 | 249 | - | - | 527 | 630 | 728 |
| 300 | 445 | 400 | 370 | 25 | 8-φ23 | 4-M20 depth 30 | 356 | 290 | - | - | 710 | 666 | 798 |
| 350 | 505 | 460 | 429 | 26 | 12-φ23 | 4-M20 depth 30 | 432 | 330 | - | - | 723 | 767 | - |
| 400 | 565 | 515 | 480 | 28 | 12-φ29 | 4-M24 depth 36 | 450 | 355 | - | - | 749 | 881 | - |
| 450 | 615 | 565 | 530 | 28 | 16-φ28 | 4-M24 depth 36 | 450 | 355 | - | - | 749 | 881 | - |
| 500 | 670 | 620 | 582 | 29 | 12-φ28 | 8-M24 depth 36 | 660 | 427 | - | - | 903 | 1015 | - |
| 600 | 780 | 725 | 682 | 30 | 12-φ31 | 8-M27 depth 40 | 762 | 567 | - | - | 1015 | 1202 | - |
| 700 | 895 | 840 | 794 | 32.5 | 16-φ31 | 8-M27 depth 40 | 865 | 633 | - | - | 1393 | 1351 | - |
| 800 | 1015 | 950 | 901 | 35 | 16-φ34 | 8-M30 depth 45 | 965 | 633 | - | - | 1393 | 1351 | - |
2,The structural length L refers to series three of GB - 12221-89 standard to manufacture.
3 The different working height of the valve is decided by different operating machine., the worm handwheel can be matched and replaced by drive-cap.
4 The above is our company standard product. If you have any special requirement. Please negotiate with the business departments or agencies
