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Product Classification

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Three eccentric flanged butterfly valve (electric)

Technical Specifications

Product model: D943H/W/Y
Nominal diameter: DN50 - 3000mm
Pressure range: 0.6 - 6.4 MPa
Operating temperature: Carbon steel: -29℃ to 400℃, Stainless steel: -40℃ to 600℃
Applicable media: air, water, sewage, steam, gas, oil products, etc.
License standard: JB/T8527-1997
European standard: GB/T9113-200
Length standard: GB/T12221-1989
Testing standard: GB/T13927-1992

Sales Hotline：

0086-21-59110018

Product Details

Product structural characteristics

The three eccentric butterfly valve changes the positive cone angle by rotating it by an angle to a slanted cone angle. This reduces the eccentricity between the valve stem and the valve body center, and consequently the opening torque also decreases. It is widely used in industrial pipelines such as metallurgy, power, petrochemicals, water supply and drainage, and municipal construction, for regulating flow and interrupting fluids.

Its main structural features are :

1. The butterfly plate and the sealing surface have no friction during opening and closing, and it is a forced seal.
2. Can be installed at any position;
3. Zero-leakage structural design;
4. You can choose between metal and non-metal, as well as metal and metal sealing methods.
5. Customers can choose from one-way valves and two-way valves.
6. Optional dynamic load type packing;
7. Optional low-leakage packing to meet the requirements of ISO 15848;
8. The valve stem can be designed to be longer.
9. We can design low-temperature valves or ultra-low temperature valves according to customer requirements.

Main external connection dimensions

DN	Main dimensions			Flange size
	L	H	H1	1.0MPa			1.6MPa			2.5MPa
	L	H	H1	D	D1	n-Фd	D	D1	n-Фd	D	D1	n-Фd
50	108	112	530	165	125	4-18	165	125	4-18	165	125	4-18
65	112	115	530	185	145	4-18	185	145	4-18	185	145	8-18
80	114	120	565	200	160	4-18	200	160	8-18	200	160	8-18
100	127	138	600	220	180	8-18	220	180	8-18	235	190	8-22
125	140	164	640	250	210	8-18	250	210	8-18	270	220	8-26
150	140	175	705	285	240	8-22	285	240	8-22	300	250	8-26
200	152	200	775	340	295	8-22	340	295	12-22	360	310	12-26
250	165	243	945	395	350	12-22	405	355	12-26	425	370	12-30
300	178	250	1070	445	400	12-22	460	410	12-26	485	430	16-30
350	190	280	1140	505	460	16-22	520	470	12-26	555	490	16-33
400	216	305	1210	565	515	16-26	580	525	16-26	620	550	16-36
450	222	350	1335	615	565	20-26	640	585	16-30	670	600	20-36
500	229	380	1415	670	620	20-26	715	650	20-30	730	660	20-36
600	267	445	1605	780	725	20-30	840	770	20-33	845	770	20-39
700	292	480	1844	895	840	24-30	910	840	24-36	960	875	24-42
800	318	530	2040	1015	950	24-33	1025	950	24-39	1085	990	24-48
900	330	580	2255	1115	1050	28-33	1125	1050	28-39	1185	1090	28-48
1000	410	650	2380	1230	1160	28-36	1255	1170	28-42	1320	1210	28-56
1200	470	760	2640	1455	1380	32-39	1485	1390	32-48	1530	1420	32-56