Butterfly Valve Series

• Cast Iron Butterfly Valves
• Ductile Iron Butterfly Valves
• Stainless Steel Butterfly Valves
• Triple Offset Butterfly Valves
• AWWA C504 Butterfly Valves
• Large Diameter Butterfly Valves
• Sanitary Butterfly Valves
• Flanged Butterfly Valves
• Lug Butterfly Valves
• Wafer Butterfly Valves
• High Vacuum Butterfly Valves

Product drawing»

Structural drawing»

Electric Serrate Regulate Butterfly Valve

The introduction

Ds942X electric serrate regulate butterfly valve is a new regulate butterfly valve, which is developed based on our company’s technical staff research many users’ running reports, summarizing many years of experience, and according to hydrodynamic characteristics. It has been widely used in power plants, water diversion, water supply, heating and other fields, and gets the universal acceptance and praise from pur customers. Electric serrate regulate butterfly valve is mainly used in water systems, and regulate the medium pipe flow, flow pattern, and the pipe pressure balance. The valve has shown excellent regulating performance especially for low pressure (≤ 0.6MPa) pipe. The main features are: 1, advanced disc serrate structure design makes the output flow and pressure more precise. The regulating flow characteristic increases remarkablely, compared with general valves. The regulate scope is wider. 2, a reasonable selection of materials prolong the service life remarkablely. 3, the scientific design approach allows a significant reduction in the machine weight. Not only save the material, but also easy to install. 4, The adoption of self-lubricating bearings greatly reduces the operating torque. 5, the simple and convenient end adjusting actuator effectively ensures the position of the disc, reduces the abrasion of sealing face. 6, operation is flexible and convenient, it can be realized electric, automatic operation, and manual operation. 7, it can be installed horizontally, or vertically.

Dimensions & constructral diagram

Main technical parameter

nominal pressure（MPa）		0.25	0.6	1.0	1.6
nominal diameter（mm）		400～2000	400～2000	200～2000	200～2000
test pressure （MPa）	intensity test	0.375	0.9	1.5	2.4
	sealing test	0.275	0.66	1.1	1.76
applicable medium		water
suitable temperature		≤80℃

Implement standard

design and manufacture	flange connection dimensions	face to face dimensions	pressure test
GB12238	GB4216.2～4216.5、GB/T17241.6、GB2555～2556	GB12221	GB/T13927

The materials of main parts

part name	materials	remarks	part name	materials	remarks
body, disc, gland	HT200、HT250、QT450-10		disc sealing ring	NBR
shaft, pin	2Cr13、1Cr18Ni9Ti		bearing	SF-1, SF-2	structure with lubrication
body sealing ring	1Cr18Ni9Ti		packing	NBR

The main external and connection dimensions of Ds942X

PN	DN	L	D0	H	H1	H2	B1	B2	B3	B4	L1	L2	L3	∮
0.25MPa	400	216	160	997	352		116	489	215	515
	450	222	200	1022	370		116	489	215	515
	500	229	200	1178	414		162	548	186	662
	600	267	250	1379	510		162	548	186	662
	700	292	250	1472	542		230	60	186	662
	800	318	250	1527	595		232	60	186	662
	900	330	250	1713	660		232	60	186	662
	1000	410	320	1881	740	705	232	60	186	662	320	400	920	27
	1200	470	320	2380	882	810	210	728	305	760	380	460	1120	27
	1400	530	320	2564	1013	910	303	782	194	827	440	520	1320	27
	1600	600	320	2753	1185	1010	335	926	223	1008	510	590	1520	30

The main external and connection dimensions of Ds942X

PN	DN	L	D0	H	H1	H2	B1	B2	B3	B4	L1	L2	L3	∮
0.25MPa	1800	670	400	2930	1270	1112	335	926	223	1008	580	660	1720	30
	2000	760	400	3322	1406	1215	450	1006	173	1093	670	750	1920	30
	2200	840	400	3958	1551	1315	450	1006	173	1093	890	990	2120	30
	2400	910	400	4237	1721	1415	430	1155	670	1167	980	1080	2320	33
	2600	990	400	4509	1876	1520	430	1155	670	1167	1080	1180	2520	33
	2800	1070	400	4780	2051	1620	430	1155	670	1167	1180	1280	2720	36
	3000	1150	400	5086	2076	1720	430	1155	670	1167	1280	1380	2920	36
0.6MPa	400	216	200	997	352		116	489	215	515
	450	222	200	1022	370		162	548	186	662
	500	229	250	1178	414		162	548	186	662
	600	267	250	1379	510		230	630	186	662
	700	292	250	1472	542		232	630	186	662
	800	318	250	1527	595		232	630	186	662
	900	330	320	1713	660		232	630	186	662
	1000	410	320	1881	740	705	303	782	194	827	320	400	920	27
	1200	170	320	2291	882	810	303	782	194	827	380	460	1120	27
	1400	530	320	2565	1013	910	335	926	223	1008	440	520	1320	27
	1600	600	400	2753	1185	1010	335	926	223	1008	510	590	1520	30
	1800	670	400	2930	1270	1112	450	1006	173	1093	580	660	1720	30
	2000	760	400	3641	1406	1215	450	1006	173	1093	670	750	1920	30
	2200	840	400	3909	1151	1315	430	1103	540	995	890	990	2120	30
	2400	910	400	4285	1721	1415	430	1155	670	1167	980	1080	2320	33
	2600	990	400	4673	1876	1520	430	1155	670	1167	1080	1180	2520	33
	2800	1070	400	4860	2051	1620	430	1155	670	1167	1180	1280	2720	36
	3000	1150	400	5706	2076	1720	430	1155	670	1167	1280	1380	2920	36
1.0MPa	200	152	160	655	186		116	489	215	515
	250	165	160	752	263		116	489	215	515
	300	178	160	805	296		116	489	215	515
	350	190	160	853	307		116	489	215	515
	400	216	200	997	352		162	548	186	662
	450	222	200	1022	370		162	548	186	662
	500	229	250	1178	414		230	630	186	662
	600	267	250	1379	510		232	630	186	662
	700	292	250	1472	542		232	630	186	662
	800	318	250	1527	595		232	630	186	662
	900	330	320	1713	660		303	782	194	827
	1000	410	320	1881	740	705	303	782	194	827	320	400	920	27
	1200	470	320	2297	840	810	335	926	223	1008	380	460	1120	27
	1400	530	320	2564	1013	910	335	926	223	1008	440	520	1320	27
	1600	600	400	2753	1185	1010	450	1006	173	1093	510	590	1520	30
	1800	670	400	3130	1270	1112	450	1006	173	1093	580	660	1720	30
	2000	760	400	3849	1406	1215	430	1103	540	995	670	750	1920	30
	2200	840	400	4329	1551	1315	430	1103	540	995	890	990	2120	30
	2400	910	400	4705	1721	1415	430	1103	540	995	980	1080	2320	33
1.6MPa	200	152	160	655	186	705	116	489	215	515	320	400	920	27
	250	165	160	752	263	810	116	489	215	515	380	460	1120	27
	300	178	200	805	308	910	116	489	215	515	440	520	1320	27
	350	190	200	853	327	1010	162	548	186	662	510	590	1520	30
	400	216	250	997	367	1112	162	548	186	662	580	660	1720	30
	450	222	250	1022	385	1215	230	630	186	662	670	750	1920	30
	500	229	250	1178	445		232	630	186	662
	600	267	250	1379	546		232	630	186	662
	700	292	320	1472	590		232	630	186	662
	800	318	320	1527	640		303	782	194	827
	900	330	320	1713	695		303	782	194	827
	1000	410	320	1881	745		335	926	223	1008
	1200	470	400	2297	984		335	926	223	1008
	1400	530	400	2564	1033		450	1006	173	1093
	1600	600	400	2753	1218		450	1006	173	1093
	1800	670	400	3150	1307		430	1103	540	995
	2000	760	400	3869	1420		430	1103	540	995

Note: it can produce DN250-3000(GB12221-89) long series according to customers’ requirements,from DN1200-3000 with bottom foot must be marked.

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