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Home > Products > Butterfly valve > Electric flange type hard sealing butterfly valve

Description Material Performance Product Size Specifications

The introduction of foreign advanced technology can be based on the J elastic precision ring and three eccentric multi-level metal seal structure, is widely used in medium temperature less than 425 DEG C, petroleum chemical industry, metallurgy, electric power and water supply and drainage and municipal construction and other industrial pipelines, for adjusting the flow and set off fluid. The three eccentric valve structure, valve seat and disc sealing surface are made of stainless steel with different hardness, good corrosion resistance, long service life, the two-way valve seal military postal function, valve product line with national GB/T13927-92 pressure test standard

Part name	Material Science
valve body	WCB、Alloy steel、Stainless steel、QT450-10
Disc	WCB、Alloy steel、Stainless steel、QT450-10
Valve shaft	2Cr13Stainless steel, alloy steel
Seal ring	Stainless steel ring
filler	Flexible graphite

This valve adopts three eccentric sealing structure, the seat and butterfly plate almost no wear, with more view more tight sealing function。
2、The sealing ring is made of stainless steel, has the dual advantages of ametal sealandsealthe, both in low and high temperature conditions, both with excellent sealing performance, corrosion resistant, long service life etc..
3、Disc sealing surface using hardfacing cobalt base carbide, sealing surface wear resistance, long service life．
4、Large formatdiscusinglatticestructure, high strength, large flow area, flow resistance is small。
5、The valve has a two-way sealing function, installation is not limited by the flow of media, also not affected by the location of space, can be installed in any direction。
6、The driving device can be installed in multiple positions (90 DEG or 180 DEG), which is convenient for users to use.。

五、Electric flange type hard seal butterfly valve D943H-10/16/25/ electric hard seal butterfly valve main shape connection size(Company:mm)：

Nominal(DN)	Main dimension			Flange dimensions and bolt size
Nominal(DN)	Main dimension			1.0MPa			1.6MPa			2.5MPa
	L	H1	H	D	D1	n-Фd	D	D1	n-Фd	D	D1	n-Фd
50	108	530	112	165	125	4-18	165	125	4-18	165	125	4-18
65	112	530	115	185	145	4-18	185	145	4-18	185	145	8-18
80	114	565	120	200	160	4-18	200	160	8-18	200	160	8-18
100	127	600	138	220	180	8-18	220	180	8-18	235	190	8-22
125	140	640	164	250	210	8-18	250	210	8-18	270	220	8-26
150	140	705	175	285	240	8-22	285	240	8-22	300	250	8-26
200	152	775	200	340	295	8-22	340	295	12-22	360	310	12-26
250	165	945	243	395	350	12-22	405	355	12-26	425	370	12-30
300	178	1070	250	445	400	12-22	460	410	12-26	485	430	16-30
350	190	1140	280	505	460	16-22	520	470	12-26	555	490	16-33
400	216	1210	305	565	515	16-26	580	525	16-26	620	550	16-36
450	222	1335	350	615	565	20-26	640	585	16-30	670	600	20-36
500	229	1415	380	670	620	20-26	715	650	20-30	730	660	20-36
600	267	1605	445	780	725	20-30	840	770	20-33	845	770	20-39
700	292	1844	480	895	840	24-30	910	840	24-36	960	875	24-42
800	318	2040	530	1015	950	24-33	1025	950	24-39	1085	990	24-48
900	330	2255	580	1115	1050	28-33	1125	1050	28-39	1185	1090	28-48
1000	410	2380	650	1230	1160	28-36	1255	1170	28-42	1320	1210	28-56
1200	470	2640	760	1455	1380	32-39	1485	1390	32-48	1530	1420	32-56
1400	530	2886	850	1675	1590	36-42	1685	1590	36-48	1755	1640	36-62
1600	600	3156	1030	1915	1820	40-48	1930	1820	40-56	1975	1860	40-62
1800	670	3421	1230	2115	2020	44-48	2130	2020	44-56	2195	2070	44-70
2000	760	3685	1350	2325	2230	48-48	2345	2230	48-62	2425	2300	48-70

Nominal DN（mm)	50～2000
Nominal pharmacology PN（MPa)	0.6	1.0	1.6	2.5
Seal test(MPa)	0.66	1.1	1.76	2.75
strength test(MPa)	0.9	1.5	2.4	3.75
Applicable temperature	carbon steel：-29℃～425℃ Stainless steel：-40℃～650℃
Applicable medium	Water, air, natural gas, oil and weak corrosive fluid
Leakage rate	accord withGB/T13927-92standard
Driving mode	Worm drive, electric, pneumatic, hydraulic