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.

Main performance specifications

PN		0.6	1.0	1.6	2.0	2.5	4.0	5.0	6.4	10
Shell test pressure		0.9	1.5	2.4	3.0	3.8	6.0	7.5	9.6	15
High pressure sealing test		0.66	1.1	1.8	2.2	2.8	4.4	5.5	7.1	11
Applicable medium and temperature ℃	DYQ40	Water, steam, pulp and other solutions t≤180℃
	DYQ40	Natural gas, coal gas, liquefied gas, crude oil, heavy oil t ≤425℃
	DYQ40	Solution, pulp, alumina powder, coal powder, coal ash, dusty gas, waste residue, etc. t ≤300℃

Material of main parts

Part Name	DYQ40	DYQ40	DYQ40
Body	WCB/CF8	WCB/CF8	WCB/CF8
Stem	2Cr13/304	2Cr13/304	2Cr13/304
Valve core sealing pair	WCB/CF8+Cr	WCB/CF8+ hardened alloy steel	Special hardened alloy steelJK117/17Co alloy
Seat seal pair	PTFE/Molon	WCB/CF8+ hardened alloy steel	Special hardened alloy steelJK117/17Co alloy

PN	DN（mm）	size（mm）
		L	D	K	d	b	z-d0	Hw	Hd
1.0MPa	100	229	220	180	156	22	8-φ18	330	380
	125	254	210	210	184	22	8-φ18	345	405
	150	267	240	240	211	24	8-φ22	370	440
	200	292	295	295	266	24	8-φ22	405	470
	250	330	350	350	319	26	12-φ22	480	540
	300	403	400	400	370	26	12-φ22	520	580
	350	430	460	460	429	26	16-φ22	570	630
	400	530	515	515	480	26	16-φ26	630	710
	450	580	565	565	530	28	20-φ26	690	770
	500	660	620	620	582	28	20-φ26	740	820
	600	840	725	725	682	34	20-φ30	840	940
	700	900	840	840	794	34	24-φ30	960	1040
	800	1000	950	950	901	36	24-φ33	1080	1180
	900	1100	1050	1050	1001	38	28-φ33	1190	1280
	1000	1200	1160	1160	1112	38	28-φ36	1310	1420
	1200	1300	1380	1380	1328	44	32-φ39	1420	1530
	1400	1500	1590	1590	1530	48	36-φ42	1540	1650
1.6MPa	100	229	180	180	156	22	8-φ18	330	380
	125	254	210	210	184	22	8-φ18	345	405
	150	267	240	240	211	24	8-φ22	370	440
	200	292	295	295	266	24	12-φ22	405	470
	250	330	355	355	319	26	12-φ26	480	540
	300	403	410	410	370	28	12-φ26	520	580
	350	430	470	470	429	30	16-φ26	570	630
	400	530	525	525	480	32	16-φ30	630	710
	450	580	650	585	548	40	20-φ30	690	770
	500	660	770	650	609	44	20-φ33	740	820
	600	840	840	770	720	54	20-φ36	840	940
	700	900	950	840	794	40	24-φ36	960	1040
	800	1000	1050	950	901	42	24-φ39	1080	1180
	900	1100	1125	1050	1001	44	28-φ39	1190	1280
	1000	1200	1255	1170	1112	46	28-φ42	1310	1420
	1200	1300	1485	1390	1328	52	32-φ48	1420	1530
	1400	1500	1590	1590	1530	58	36-φ48	1540	1650