Top entry eccentric semi ball valve-Large diameter valve series-大口径阀厂家-上海冠环阀门制造有限公司

Product Structure Features

1、More reasonable structure design

Adopting the eccentric deed principle achieves the purpose of the brake tightly, regulation by transmission mechanism. The sealing ring surface is metal with hard faced contact seal. Double eccentric structure is in the open when the valve core is located in the ball room.large flow area and zero water loss, can save a lot of resources, and the valve is not washed. close the valve core will not be washed,and open the valve core sphere can effectively move along the seat, so as to easily remove fouling obstacles, achieve reliable seal,and the two-phase mixed flow easily scale solid precipitation mixed flow convey particularly effectively.

2、Lower pressure loss

Fully open when the water loss is zero, the flow channel is completely smooth; chest automatic cleaning.,The valve core is can rotate in 90 angle,automatically flush valve chest and clean up the debris of the medium.) Also, the debris will not be deposited in the valve chest . The ball is hemispherical. Circulation with the highest Cv value enhanced the system efficiency of the pump and the abrasion is reduced to the lowest degree.

3、Better quality assurance of sealing

Using eccentric principle, the ball and valve seat are closed tightly under the positive pressure, so as to obtain good sealing; floating seat under the anti pressure, will push the ball towards valve seat. The higher the pressure, the closer between valve seat and the ball, So that the sealing can get a good automatic seal function.

4、Longer service life

No wearing parts. Due to the eccentric effect, in the process of opening and closing, the valve body completely separated from the sealing of valve seat, and make the seat surface and the spherical cap shift without friction between spherical rotation. At the same time it can reduce operating torque effectively and operate easily. Automatic compensation functions of the valve, can greatly improve the service life of the valve.

5、Maintenance easier

Self-cleaning function. When the ball roll away from the valve seat, fluid in the pipeline flow along the sealing surface of the sphere into 360 degree, not only eliminates the high-speed fluid scour to seat local, sediment is washed away from the sealing face. The spherical cap edge with hard seal eccentric semi ball valve adopts edge shape, not only can scrape the dirt on the valve seat, also can cut sundries, to achieve self cleaning purposes.

Main connection dimensions PN10

DN	L	D	D1	D2	b	f	Z -d0	Hw	Hd
50	178	160	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	215	180	156	22	2	8-18	330	380
125	254	245	210	184	22	2	8-18	345	405
150	267	280	240	211	24	2	8-22	370	440
200	292	335	295	266	24	2	8-22	405	470
250	330	390	350	319	26	2	12-22	480	540
300	356	440	400	370	26	2	12-22	520	580
350	400	500	460	429	26	2	16-22	570	630
400	405	565	515	480	26	2	16-26	630	710
450	480	615	565	530	28	2	20-26	690	770
500	533	670	620	582	28	2	20-26	740	820
600	680	780	725	682	34	2	20-30	840	940
700	740	895	840	794	34	5	24-30	960	1040
800	850	1015	950	901	36	5	24-33	1080	1180
900	1100	1115	1050	1001	38	5	28-33	1190	1280
1000	1200	1220	1160	1112	38	5	28-36	1310	1420
1100	1250	1340	1270	1222	42	5	28-36	1390	1480
1200	1300	1450	1380	1328	44	5	32-39	1420	1530
1400	1500	1670	1590	1530	48	5	36-42	1540	1650
1600	1800	1910	1820	1750	52	5	40-48	1660	1750
1800	2000	2110	2020	1950	56	5	44-48	1790	1860
2000	2200	2320	2230	2150	60	5	48-48	1920	1990

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