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Home > Products > Butterfly valve > D3/7/43H-10KDay standard butterfly valve

Description Material Performance Product Size Specifications

Item name: butterfly valve

Product features: D3/7/43H-10K series day mark on the folder type, flange type three eccentric hard seal butterfly valve, the eccentric hard seal butterfly valve three

Day mark butterfly valve details: D3/7/43H-10K series day mark on the folder type, flange type three eccentric hard seal butterfly valve, three eccentric hard seal butterfly valve

Part name	Material Science
valve body	WCB、304、316、316SS、CF8M
Disc	WCB、304、316、316SS、CF8M
The stem	316、2Cr13、1Cr18Ni9Ti
Seal ring	316、Fluorine plastics
filler	Flexible graphite, fluorine plastic

Uses and features:

The main structure characteristics of D373H-10K, 20K and D343H-10K, 20K series of the folder type butterfly valve and flange three eccentric seal, valve seat ring by multi-layer elastic seal and soft seal compatibility of two kinds of structure, the sealing performance is reliable, to ensure that the open disc does not contact the sealing seat, the sealing seat eliminates the uneven loads, long service life, and ensure reliable sealing performance, has the characteristics of high temperature resistance, abrasion resistance, corrosion resistance etc.. Widely used in petroleum, chemical and industrial environmental protection water treatment, high-rise buildings, water supply and drainage pipes

Nominal diameter		DN(mm)		830W		830L
			2〞~36〞		2〞~36〞
Nominal pressure	PN(MPa)		10K		20K
Test pressure	strength test		1.5		3.0
	Seal test		1.1		2.2
Applicable medium	Water, steam, oil, seawater, etc.
Applicable temperature	-29℃~425℃

Day butterfly valve D373H-10K, 20K series：

Nominal diameter		Structure length (standard value)	Dimensions (reference values)													Connection dimensions (standard values)
Nominal diameter		Structure length (standard value)	H	D373H						D673H			D973H			10K		20K
millimeter	inch	L	H	H1		A1		B1		H2	A2	B2	H3	A3	B3	D1	Z-d	D1	Z-d
50	2	43	112	350	180		200		625		245	72	530	250	255	120	4-19	120	8-19
65	21/2	46	115	370	180		200		625		245	72	530	250	255	140	4-19	140	8-19
80	3	49	120	380	180		200		645		245	72	565	250	255	150	8-19	160	8-23
100	4	56	138	420	180		200		675		355	92	600	250	255	175	8-19	185	8-23
125	5	64	164	460	180		200		715		355	92	640	250	255	210	8-23	225	8-25
150	6	70	175	555	270		280		800		355	92	705	300	315	240	8-23	260	12-25
200	8	70	208	605	270		280		850		250	170	775	300	315	290	12-33	305	12-25
250	10	76	243	680	270		280		925		250	170	945	300	315	355	12-25	380	12-27
300	12	83	283	800	380		420		1035		450	220	1070	300	315	400	16-25	430	16-27
350	14	92	310	835	380		420		1070		450	220	1140	300	315	445	16-25	480	16-33
400	16	102	340	915	450		470		1190		450	220	1210	300	315	510	16-27	540	16-33
450	18	114	380	960	480		490		1250		650	280	1335	575	714	565	20-27	605	20-33
500	20	127	410	1020	480		490		1290		650	280	1415	575	714	620	20-27	660	20-33
600	24	154	470	1225	480		490		1455		850	380	1605	656	810	730	24-33	770	24-39
700	28	165	550	1355	640		660		1585		850	380	1844	656	810	840	24-33	900	24-48
800	32	190	640	1470	640		660		1700		1250	380	2040	656	810	950	28-33	1030	24-56
900	36	203	710	1545	750		860		1965		1250	380	2255	785	863	1050	28-33	1140	28-56
1000	40	216	770	1795	850		900		2015		1250	380	2380	785	863	1160	28-39
1200	48	254	890	1965	850		900		2250		1250	380	2640	785	863	1380	32-39

七、Day butterfly valve day mark D343H-10K, 20K series:

Nominal diameter		Structure length(standard value）		Dimensions (reference values)										Connection dimensions (standard values)
Nominal diameter		L		H	D373H			D673H			D973H			10K			20K
millimeter	inch	short	long	H	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	605	245	72	530	250	255	155	120	4-19
65	2 1/2	112	170	115	370	180	200	625	245	72	530	250	255	175	140	4-19	155	120	8-19
80	3	114	180	120	380	180	200	645	245	72	565	250	255	185	150	8-19	175	140	8-19
100	4	127	190	138	420	180	200	675	355	92	600	250	255	210	175	8-19	200	160	8-23
125	5	140	200	164	460	180	200	715	355	92	640	250	255	250	210	8-23	225	185	8-23
150	6	140	210	175	555	270	280	800	355	92	705	300	315	280	240	8-23	270	225	8-25
200	8	152	230	208	605	270	280	850	250	170	775	300	315	330	290	12-23	305	270	12-25
250	10	165	250	243	680	270	280	925	250	170	945	300	315	400	355	12-25	350	305	12-25
300	12	178	270	283	800	380	420	1035	450	220	1070	300	315	445	400	16-25	430	350	12-27
350	14	190	290	310	835	380	420	1070	450	220	1140	300	315	490	445	16-25	480	430	16-27
400	16	216	310	340	915	450	470	1190	450	220	1210	300	315	560	510	16-27	540	480	16-33
450	18	222	330	380	960	480	490	1250	650	280	1335	575	714	620	565	20-27	605	540	16-33
500	20	229	350	410	1020	480	490	1290	650	280	1415	575	714	675	620	20-27	675	605	20-33
600	24	267	390	470	1225	480	490	1455	850	380	1605	656	810	795	730	24-33	730	660	20-33
700	28	292	430	550	1355	640	660	1585	850	380	1844	656	810	905	840	24-33	845	770	24-39
800	32	318	470	640	1470	640	660	1700	1250	380	2040	656	810	1020	950	28-33	995	900	24-48
900	36	330	510	710	1545	750	860	1865	1250	380	2255	785	863	1120	1050	28-33	1140	1030	24-56
1000	40	410	550	770	1795	850	900	2015	1500	580	2380	785	863	1235	1160	28-39	1250	1140	28-56
1200	48	470	630	890	1965	850	900	2226	1500	580	2640	785	863	1465	1380	32-39

Design standard：API1609-83
Flange connection size：JIS B2212 ??JIS B2213 ??JIS B2214
Structure length：JIS B2002-1987
Pressure test：JIS B2003-1987
Driving form
Handle, worm gear, pneumatic, electric, etc.

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