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D343H Butterfly valve

Product Overview

D343H butterfly valve is of long life and energy saving type.
Its structure adopts the principle of three-dimensional braided design, the valve seat USES the hard and soft seal compatible multi-level structure, the technology is advanced, the processing is exquisite.
This product is composed of valve body, butterfly plate, multi-level seat, stem, transmission mechanism and other main components

Structural characteristics

Because this product butterfly valve is designed on the principle of three-dimensional eccentricity, the space movement track of the sealing surface reaches the ideal, the sealing surface has no friction between each other, no interference, together with the optimal configuration of the sealing material, so that the sealing, corrosion resistance, high temperature resistance and wear resistance of the butterfly valve have been guaranteed reliably.
Its main features are as follows:
1. Small opening torque, easy to operate and energy saving.
2. Three-dimensional core-weave structure makes the butterfly root more and more tightly closed. Its sealing performance is reliable and no leakage is achieved.
3. High pressure resistance, corrosion resistance, wear resistance, long service life, etc.

Execution standard

Design and Manufacture: GB/T 12238
Flange connection: GB/T9113.1, GB/T9113.2, GB/T 9115.1, GB/T 9115.2, HG20592
Test and inspection: GB/T13927, JB/T9092, API6D, ISO5208
Structure length: GB/T 12221
Test and inspection: GB/T 13927

Performance parameter

Nominal diameter: DN40~2000mm
Nominal pressure: PN0.6~ 4.0mpa
Applicable temperature: carbon steel -29℃~425℃, stainless steel -40℃~600℃
Main material: cast steel, stainless steel, chrome key steel, alloy steel, duplex steel
Applicable medium: air, water, steam, gas, oil, acid, alkali, salt with weakly corrosive medium, etc

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

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