Product Structure Features：

1、More reasonable structure designAdopting 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 lossFully 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 sealingUsing 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 lifeNo 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 easierSelf-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.

Material Of Main Parts

NO	Part Name	Material name
1	Body/bonnet	WCB	ZG1Cr18Ni9Ti	ZG0Cr18Ni12Mo2Ti	ZG15Cr1Mo1V
2	Spheroid	WCB+Hard Chrome	1Cr18Ni9Ti Special surface treatment	0Cr18Ni12Mo2Ti Special surface treatment	25Cr2Mo1V Special surface treatment
3	Stem	20Cr13	1Cr18Ni9Ti	0Cr18Ni12Mo2Ti	25Cr2Mo1V
4	Valve seat	Q235A+PTFE/堆焊	1Cr18Ni9Ti/PTFE	0Cr18Ni12Mo2Ti/PTFE	25Cr2Mo1V/PTFE
5	Filler	Flexible graphite	Flexible graphite	Flexible graphite	Flexible graphite
6	Bolt	35CrmoA	0Cr18Ni9	0Cr18Ni9	15Cr1Mo1V
7	Nut	45	0Cr18Ni9	0Cr18Ni9	20CrMo

 Main External Connection Dimensions

PN(MPa)	DN		Size(mm)
			L	DSeries 1/Series 2	D1	D2	D6	b	f	Z-φd
	mm	in	Flange
1.0	40	-	125	145	110	85	-	16	3	4-18
	50	-	140	160	125	100	-	16	3	4-18
	65	-	190	180	145	120	-	18	3	4-18
	80	-	178	195	160	135	-	20	3	4-18
	100	-	200	215	180	155	-	20	3	8-18
	125	-	254	245	210	185	-	22	3	8-18
	150	-	267	280	240	210	-	24	3	8-23
	200	-	292	335	295	265	-	24	3	8-23
	250	-	330	390	350	320	-	26	3	12-23
	300	-	390	440	400	368	-	26	4	12-23
	350	-	430	500	460	428	-	28	4	16-23
	400	-	530	565	515	482	-	28	4	16-25
	450	-	580	615	565	532	-	30	4	20-25
	500	-	630	670	620	585	-	30	4	20-25
	600	-	800	480	725	685	-	34	5	20-30
	700	-	900	895	840	800	-	38	5	24-30
	800	-	1000	1010	950	905	-	42	5	24-34