Definition: An industrial valve designed with an eccentric structure (the valve body and the center axis of the sphere are offset), which drives the sphere to rotate around the axis through the valve stem to achieve opening and closing actions. It is suitable for harsh working conditions containing particles and corrosive media.
Core features:
Eccentric design: The ball is detached from the valve seat and rotates, reducing the wear of the sealing surface. The opening and closing torque is small, and it automatically centers when closed to form a tighter and tighter sealing effect.
Top mounted structure: The top is detachable and supports online maintenance (such as replacing valve seats and sealing rings) without the need to disassemble the entire valve.
Reliable sealing: The metal sealing pair (welded alloy) or non-metallic elastic material is embedded in the valve seat, which is wear-resistant and has self compensating ability.
Low flow resistance: When fully open, the flow cross-section is large, and the fluid resistance is close to that of a straight pipe section, reducing pressure loss.
Typical applications: Steel, aluminum, petroleum, chemical, sewage treatment and other scenarios that require treatment of fibers, pulp, gas, corrosive media or frequent maintenance.





name | Material | |||
valve body | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
back cover | Q235A | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 25Cr2Mo1V |
bushing | SF_1 | FB090 | FB316 | FB090 |
Lower valve stem | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
sphere | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
pressure plate | Q235A | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 25Cr2Mo1V |
valve seat | Q235A+PTFE | 1Cr18Ni9Ti/PTFE | 0Cr18Ni12Mo2Ti/PTFE | 25Cr2Mo1V/PTFE |
spherical crown | 1Cr18Ni9Ti special treatment | 1Cr18Ni9Ti special treatment | 0Cr18Ni12Mo2Ti special treatment | 1Cr18Ni9Ti special treatment |
bushing | SF-1 | FB090 | FB316 | FB090 |
Upper Stem | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
Packing tray | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
valve cover | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
bolt | 35 | 0Cr18Ni9 | 0Cr18Ni9 | 15Cr1Mo1V |
nut | 35 | 0Cr18Ni9 | 0Cr18Ni9 | 20CrMo |
Fill Sea Science | flexible graphite | flexible graphite | flexible graphite | flexible graphite |
cover pressing | WCB | ZG1Cr18Ni9Ti | ZG0Cr18Ni12Mo2Ti | ZG15Cr1Mo1V |
support | WCB | WCB | WCB | WCB |
Electric Actuator | assembly | |||

Nominal Diameter | PN1.0MPa | ||||||||
L | D | D1 | D2 | b | f | Z-Φd0 | Hw | Hd | |
50 | 178 | 165 | 125 | 100 | 18 | 2 | 4-18 | 270 | 310 |
65 | 190 | 180 | 145 | 120 | 18 | 2 | 4-18 | 280 | 320 |
80 | 203 | 195 | 160 | 135 | 20 | 2 | 4-18 | 290 | 330 |
100 | 229 | 220 | 180 | 156 | 22 | 2 | 8-18 | 330 | 380 |
125 | 254 | 250 | 210 | 184 | 22 | 2 | 8-18 | 345 | 405 |
150 | 267 | 285 | 240 | 211 | 24 | 2 | 8-22 | 370 | 440 |
200 | 292 | 340 | 295 | 266 | 24 | 2 | 8-22 | 405 | 470 |
250 | 330 | 395 | 350 | 319 | 26 | 2 | 12-22 | 480 | 540 |
300 | 356 | 445 | 400 | 370 | 26 | 2 | 12-22 | 520 | 580 |
350 | 430 | 505 | 460 | 429 | 26 | 2 | 16-22 | 570 | 630 |
400 | 530 | 565 | 515 | 480 | 26 | 2 | 16-26 | 630 | 710 |
450 | 580 | 615 | 565 | 530 | 28 | 2 | 20-26 | 690 | 770 |
500 | 660 | 670 | 620 | 582 | 28 | 2 | 20-26 | 740 | 820 |
600 | 840 | 780 | 725 | 682 | 34 | 2 | 20-30 | 840 | 940 |
700 | 900 | 895 | 840 | 794 | 34 | 2 | 24-30 | 960 | 1040 |
800 | 1000 | 1015 | 950 | 901 | 36 | 5 | 24-33 | 1080 | 1180 |
Note: The above data is for reference only. For details, please consult the company's sales department.
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