Product Overview: The upper mounted bi-directional sealed eccentric hemispherical valve has been successfully developed by absorbing and digesting advanced technology from both domestic and international sources.The new product is to fix the metal ball crown on an eccentric ball. By rotating the eccentric crankshaft 90 degrees, the word gate is opened and closed, and the Jinxian Lake seat in contact with the metal ball crown cover floats in the axial and longitudinal directions to compensate for the fit between the ball device and the lake seat. This adjustment is applied to industries such as petroleum, chemical, power, and metallurgy. The valve structure adopts the principle of small stem tightening, and the purpose of tightening, adjusting, and closing is achieved through the transmission mechanism. The home seal and ball crown are both metal face rings with hard contact seals. When the double eccentric structure valve is opened, the ball body is hidden in the valve chamber, with a large flow cross-section, and the valve is not flushed, resulting in low flow resistance. When closed, the valve core is not flushed, and when closed, the spherical surface of the valve core gradually moves along the valve seat, with shear function, effectively removing scaling obstacles and achieving reliable sealing. It is particularly effective for conveying media that are prone to scaling. The hemisphere of this valve is fixed with a metal ball crown on an eccentric ball, and different alloy ball crowns are installed on the ball. The valve seat is also made of corresponding alloy and treated with special treatment. The home cover is combined into various categories such as anti-corrosion, magic resistant, and high-temperature resistant. Meet the needs of different occasions. The valve seat and ball crown have a compensation amount, and when the valve seat is worn out, it can still be reliably sealed and its service life can be extended by turning a little more when closed. The biggest feature of this valve is that after the operating device system is depressurized, the valve can be inspected and repaired online. During maintenance, only the valve cover needs to be opened to lift out the ball crown and support body without having to remove the entire valve from the pipeline.
Item NO.:
XUVAL33-279Lead Time:
50 DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
silveryMOQ:
5Suitable for systems with strict requirements such as clean water, raw water (including mud and sand), sewage, seawater, distilled water, oil, alumina, coal ash, coal gas, natural gas, urban heating, etc.
Product Performance Specification:
PN(MPa)Nominal pressure | 1.0 | 1.6 | 2.5 | 4.0 |
(MPa) Room temperature max.working pressure |
1.0 | 1.6 | 2.5 | 4.0 |
(MPa) Shell strength test pressure |
/ | / | / | 4.0 |
1.5 | 2.4 | 3.8 | ||
(MPa Gas seal test pressure |
0.6 | 0.6 | 0.6 | 0.6 |
(MPa) High pressure seal test |
1.1 | 1.76 | 2.75 | 4.4 |
Leakage rate | <0.1×DNmm³/s(API598 Comply with the standard of API 598) | |||
(℃ Applicable temperature |
Soft seal:-40℃~+200℃;Hard seal;-50℃~+600℃ | |||
Applicable medium |
Natural gas,steam,oll,acid,alkali,pulverized coal fly ash,slag,mud,containing granular,fiber and other kinds of medium |
|||
Operation type |
Gear,Electric actuator,Pneumatic actuator,Hydraulic actuator |
Main External and Connecting Dimensions:
DN | L | D | D1 | D2 | b | f | Z-d0 | Hw | Hd |
50 | 178 | 165 | 125 | 100 | 18 | 2 | 4-18 | 270 | 310 |
65 | 190 | 185 | 145 | 120 | 18 | 2 | 4-18 | 280 | 320 |
80 | 203 | 200 | 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 | 630 | 670 | 620 | 582 | / | 20-26 | 740 | 820 | |
28 | 2 | ||||||||
600 | 800 | 780 | 725 | 682 | 34 | 2 | 20-30 | 840 | 940 |
700 | 900 | 895 | 840 | 794 | 34 | 5 | 24-30 | 960 | 1040 |
800 | 1000 | 1015 | 950 | 901 | 36 | 5 | 24-33 | 1080 | 1180 |
900 | 1100 | 1115 | 1050 | 1001 | 38 | 5 | 28-33 | 1190 | 1280 |
1000 | 1200 | 1230 | 1160 | 1112 | 38 | 5 | 28-36 | 1310 | 1420 |
1100 | 1250 | 1345 | 1270 | 1222 | 42 | 5 | 28-36 | 1390 | 1480 |
1200 | 1300 | 1455 | 1380 | 1328 | 44 | 5 | 32-39 | 1420 | 1530 |
1400 | 1500 | 1675 | 1590 | 1530 | 48 | 5 | 36-42 | 1540 | 1650 |
1600 | 1800 | 1915 | 1820 | 1750 | 52 | 5 | 40-48 | 1660 | 1750 |
Product Execution Standard:
Desian Standard | Face-to-Face | Flange Standard | Test and Inspection |
GB/T12237-2007 | GB/T12221-2005 | GB/T9113-2000 | GB/T13927-2008 |
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