Blowout butterfly valve (large diameter)-CHINA·GUOGONG HOLDING GROUP-Official website

EN 中

Your location is:Products >> Coal coking industry >> Blowout butterfly valve (large diameter)

Return to superior

Blowout butterfly valve (large diameter)

Product Overview

Blowout butterfly valve (large diameter) is designed by our technicians after absorbing the structure and characteristics of similar foreign products and overcoming the defects existing in the use of the original products, so that its life is more durable and the sealing is more reliable.Eccentric butterfly valve USES the three dimensional design principle of sealing pair is composed of two overlapping cones inclined section, butterfly plate rotation center after the eccentric value of valve body, valve seat, realize the opening and closing of instantaneous contact and separation, and the disc sealing ring metal and graphite layer structure to realize labyrinth seal, can make the small torque of valve butterfly valve sealing performance, and can guarantee two-way pressure butterfly valve adopts reduce eccentric value and enhance the butterfly plate, the strength of the valve spindle, actuators, etc to support zero import and export bidirectional sealing leakage.

Structural characteristics

1. The inclined elliptical butterfly plate radial dynamic balance sealing system is adopted, the force on both sides of the valve inlet and outlet is approximately balanced, the opening torque of the valve is small, the positive and reverse sealing performance is reliable, and the bidirectional pressure bearing capacity is 100%;
2. The sealing surface of the valve is made of integral metal sealing ring, which is machined with high precision. The sealing cross-section is elliptical, which forms a sealing pair with the metal sealing surface of the valve seat. When the valve is opened and closed, the sealing surface of butterfly plate contacts or disengages instantaneously along the 360 ° circle, which can quickly and accurately realize the opening or closing action;
3. Three eccentric structure is adopted, that is, an angle eccentricity is added on the basis of double eccentric butterfly valve.

Execution standard

Design specification: GB/T 12238, JB/T8527
Flange connection: GB/T 9113, JB/T79, HG20592
Structure length: GB/T12221
Tests and inspection: GB/T13927

Performance parameter

Main material: cast steel, stainless steel, chromium-molybdenum steel, alloy steel, duplex steel
Product model: DS343H
Product specification: DN50~2000mm
Pressure class: PN0.6~ 4.0MPa
Applicable medium: air, water, steam, gas, oil, acid, alkali, salt with weakly corrosive medium, etc
Applicable temperature: Carbon steel: -29℃~425℃ Stainless steel: -40℃~600℃
Driving mode: worm drive, pneumatic drive, electric drive, hydraulic drive

Product Dimensions

DN		Structure length (standard)		Boundary dimensions (reference)										Connection dimensions (standard)
		L		H	DS343H			DS643H			DS943H			PN0.25MPa			PN0.6MPa			PN1.0MPa
mm	inches	short	long		H1	A1	B1	H2	A2	B2	H3	A3	B3	D	D1	Z-d	D	D1	Z-d	D	D1	Z-d
40	1 1/2	106	140	107	330	180	200	605	245	72	530	250	255	130	100	4-14	130	100	4-14	150	110	4-18
50	2	108	150	112	350	180	200	625	245	72	530	250	255	140	110	4-14	140	110	4-14	165	125	4-18
65	2 1/2	112	170	115	370	180	200	645	245	72	530	250	255	160	130	4-14	160	130	4-14	185	145	4-18
80	3	114	180	120	380	180	200	675	355	92	565	250	255	190	150	4-18	190	150	4-18	200	160	8-18
100	4	127	190	138	420	180	200	715	355	92	600	250	255	210	170	4-18	210	170	4-18	220	180	8-18
125	5	140	200	164	460	180	200	800	355	92	640	250	255	240	200	8-18	240	200	8-18	250	210	8-18
150	6	140	210	175	555	270	280	850	250	170	705	300	315	265	225	8-18	265	225	8-18	285	240	8-22
200	8	152	230	200	760	400	425	925	250	170	775	300	315	320	280	8-18	320	280	8-18	340	295	8-22
250	10	165	250	243	830	400	425	1035	450	220	945	300	315	375	335	12-18	375	335	12-18	395	350	12-22
300	12	178	270	250	895	450	560	1070	450	220	1070	300	315	440	395	12-22	440	395	12-22	445	400	12-22
350	14	190	290	280	950	450	560	1190	450	280	1140	300	315	490	445	12-22	490	445	12-22	505	460	16-22
400	16	216	310	305	1190	535	580	1250	650	280	1210	300	315	540	495	16-22	540	495	16-22	565	515	16-26
450	18	222	330	350	1255	535	580	1295	650	280	1335	575	714	595	550	16-22	595	550	16-22	615	565	20-26
500	20	229	350	380	1305	535	580	1455	850	380	1415	575	714	645	600	20-22	645	600	20-22	670	620	20-26
600	24	267	390	445	1340	570	660	1585	850	380	1605	656	810	755	705	20-26	755	705	20-26	780	725	20-30
700	28	292	430	480	1520	750	550	1700	1250	380	1844	656	810	860	810	24-26	860	810	24-26	895	840	24-30
800	32	318	470	530	1710	750	550	1865	1250	380	2040	656	810	975	920	24-30	975	920	24-30	1015	950	24-33
900	36	330	510	580	1810	750	550	2015	1500	580	2255	785	863	1075	1020	24-30	1075	1020	24-30	1115	1050	28-33
1000	40	410	550	650	1960	900	750	2226	1500	580	2380	785	863	1175	1120	28-30	1175	1120	28-30	1230	1160	28-36
1200	48	470	630	760	2250	1000	925	-	-	-	2640	785	863	1375	1320	32-30	1405	1340	32-33	1455	1380	32-39
1400	56	530	710	850	2435	1000	925	-	-	-	2886	-	-	1575	1520	36-30	1630	1560	36-36	1675	1590	36-42
1600	64	600	790	1030	2780	1000	925	-	-	-	3156	-	-	1790	1730	40-30	1830	1760	40-36	1915	1820	40-48
1800	72	670	870	1230	3020	1100	980	-	-	-	3421	-	-	1990	1930	44-30	2045	1970	44-39	2115	2020	44-48
2000	80	760	950	1350	3270	1100	980	-	-	-	3685	-	-	2190	2130	48-30	2265	2180	48-42	2325	2230	48-48

DN		Structure length (standard)		Boundary dimensions (reference)										Connection dimensions (standard)
				H	DS343H			DS643H			DS943H			PN1.6MPa			PN2.5MPa
		L
mm	inches	short	long		H1	A1	B1	H2	A2	B2	H3	A3	B3	D	D1	Z-d	D	D1	Z-d
50	2	108	150	112	350	180	200	625	245	72	530	250	255	165	125	4-18	165	125	4-18
65	2 1/2	112	170	115	370	180	200	625	245	72	530	250	255	185	145	4-18	185	145	8-18
80	3	114	180	120	380	180	200	645	245	72	565	250	255	200	160	8-18	200	160	8-18
100	4	127	190	138	420	180	200	675	355	92	600	250	255	220	180	8-18	235	190	8-22
125	5	140	200	164	460	180	200	715	355	92	640	250	255	250	210	8-18	270	220	8-26
150	6	140	210	175	555	270	280	800	355	92	705	300	315	285	240	8-22	300	250	8-26
200	8	152	230	200	760	400	425	850	250	170	775	300	315	340	295	12-22	360	310	12-26
250	10	165	250	243	830	400	425	925	250	170	945	300	315	405	355	12-26	425	370	12-30
300	12	178	270	250	895	450	560	1035	450	220	1070	300	315	460	410	12-26	485	430	16-30
350	14	190	290	280	950	450	560	1070	450	220	1140	300	315	520	470	16-26	555	490	16-33
400	16	216	310	305	1190	535	580	1190	450	220	1210	300	315	580	525	16-30	620	550	16-36
450	18	222	330	350	1255	535	580	1250	650	280	1335	575	714	640	585	20-30	670	600	20-36
500	20	229	350	380	1305	535	580	1290	650	280	1415	575	714	715	650	20-33	730	660	20-36
600	24	267	390	445	1340	570	660	1455	850	380	1605	656	810	840	770	20-36	845	770	20-39
700	28	292	430	480	1520	750	550	1585	850	380	1844	656	810	910	840	24-36	960	875	24-42
800	32	318	470	530	1710	750	550	1700	1250	380	2040	656	810	1025	950	24-39	1085	990	24-48
900	36	330	510	580	1810	750	550	1865	1250	380	2255	785	863	1125	1050	28-39	1185	1090	28-48
1000	40	410	550	650	1960	900	750	2015	1250	380	2380	785	863	1255	1170	28-42	1320	1210	28-56
1200	48	470	630	760	2250	1000	925	2250	1250	380	2640	785	863	1485	1390	32-48	1530	1420	32-56
1400	56	530	710	850	2435	1000	925	-	-	-	2886	-	-	1685	1590	36-48	1755	1640	36-62
1600	64	600	790	1030	2780	1000	925	-	-	-	3156	-	-	1930	1820	40-56	1975	1860	40-62
1800	72	670	870	1230	3020	1100	980	-	-	-	3421	-	-	2130	2020	44-56	2195	2070	44-70
2000	80	760	950	1350	3270	1100	980	-	-	-	3685	-	-	2345	2230	48-62	2425	2300	48-70

DN		Structure length (standard)		Boundary dimensions (reference)										Connection dimensions (standard)
		Structure length (standard)		H	DS343H			DS643H			DS943H			PN4.0MPa
		L			DS343H			DS643H			DS943H			PN4.0MPa
mm	inches	short	long		H1	A1	B1	H2	A2	B2	H3	A3	B3	D	D1	Z-d
50	2	108	150	112	350	180	200	625	250	170	530	250	255	165	125	4-18
65	2 1/2	112	170	115	370	180	200	625	250	170	530	250	255	185	145	8-18
80	3	114	180	120	380	180	200	645	250	170	565	250	255	200	160	8-18
100	4	127	190	138	420	180	200	675	250	170	600	250	255	235	190	8-22
125	5	140	200	164	460	180	200	715	450	220	640	250	255	270	220	8-26
150	6	140	210	175	555	270	280	800	450	220	705	300	315	300	250	8-26
200	8	152	230	200	760	400	425	850	450	220	775	300	315	375	320	12-30
250	10	165	250	243	830	400	425	925	450	280	945	300	315	450	385	12-33
300	12	178	270	250	895	450	560	1035	650	280	1070	300	315	515	450	16-33
350	14	190	290	280	950	450	560	1070	650	280	1140	300	315	580	510	16-36
400	16	216	310	305	1190	535	580	1190	650	280	1210	300	315	660	585	16-39
450	18	222	330	350	1255	535	580	-	-	-	1335	575	714	685	610	20-39
500	20	229	350	380	1305	535	580	-	-	-	1415	575	714	777	670	20-42

Next：Modular three-way ball valve

Previous：Z941H electric gate valve (large diameter)

Privacy policy

This privacy Statement applies to all users of the Site and the services provided by the Site.We solemnly promise to respect and protect users' personal privacy. We will not publish any information related to users without users' authorization, unless required by law or procedure.We will regularly review privacy protection measures, track security technology trends, and update technology and management measures.< br/> 1. Users shall provide necessary personal information, usually including name, gender, contact number and E-mail address, when using the services of leaving messages, consulting and interactive questions on the website of China National Industry Holding Group Co., LTD.We will keep the user information and relevant requirements confidential management.
2. We will adopt technical and management measures to protect users' privacy.When sensitive information is provided to us by users, we will take reasonable steps to protect sensitive information of users, and we will also take reasonable security measures to protect personal information that has been stored.This website will strictly manage and protect the data provided by users, and will use the corresponding technology to prevent the loss, theft or change of users' personal data.
3. The website of China National Engineering Holding Group Co., Ltd. will strictly protect users' personal privacy and promise not to arbitrarily disclose users' personal information without users' consent.However, under the following exceptions, the aforementioned promises will not be warranted to disclose the user's relevant information.These circumstances include, but are not limited to: (1) when the user behavior on this site violates the measures for the administration of international networking of computer information network security protection, the measures for the administration of Internet information service, the "Internet electronic bulletin service management regulations" and "the standing committee of the National People's Congress on maintaining Internet security decision", or may damage or interfere with the rights and interests of other users or cause others to suffer damage, disclosure of personal information is to identify the user, contact, or to take legal action when necessary action.
(2) Personal information that must be disclosed or made public as required by laws and regulations.
(3) When judicial organs or other authorized organs perform official duties according to law and require websites to disclose specific personal data.
4. The website of China National Engineering Holding Group Co., Ltd. has taken complete technical measures to protect the integrity and confidentiality of users' information.However, the website of China National Industry Holding Group Co., Ltd. shall not bear any legal liability for the damage, disclosure and loss of user information caused by force majeure or special external forces such as computer virus infection or hacker attack, but we will take necessary measures to reduce the loss of users.
5. At any time when users think that the website of China National Industry Holding Group Co., Ltd. does not comply with this statement, please inform us by E-mail to GuoGong@GFGFV.com and we will make every effort to take corresponding improvement measures.

Legal notices

I. GUOGONG HOLDING GROUP CO.,LTD. independently owns or co-owns with relevant content providers the copyright of relevant content on this website.Any person who intends to use the text, pictures, video/audio and other information on the Website shall contact the website in advance and obtain explicit written permission.Without permission, any media, websites, business organizations and individuals should not be allowed to copy the contents of this website or work in the countries holding group co., LTD., belongs to a mirror on the server, and may not be all or part of this site page, make commercial links and their content, and shall not distort and tamper with the content on this web site is.
Second, all pages in the official website of creative format framework, animation, interactive design, structure, color, text, ICONS and other appropriate combination, in the form of digital published in digital form and fixed on the computer's hard drive space, contact by the public with the help of a network host, give a person with visual aesthetic feeling, this is not a simple arrangement of facts, has the originality.The above description is protected by this copyright notice.
Iii. We have tried our best to obtain permission from the copyright owner for the information reproduced on this website. If there is any omission, please contact this website.
Iv. The views expressed or implied in the relevant articles and materials reproduced on this website do not represent that of China National Industry Holding Group Co., LTD.
V. This website cannot control or guarantee the accuracy, timeliness and completeness of the information of each website linked to it.
The right to modify and update the website Statement belongs to the website of China National Industry Holding Group Co., LTD.

Copy Right ©CHINA•GUOGONG HOLDING GROUP CO.,LTD. ZheICP19038257 Privacy policy Legal notices Technical support:Fengsheng technology

+86 0578-2626111

guogong@gfgfv.com