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Hard sealing flange butterfly valve

The hard sealing butterfly valve is an eccentric metal sealing structure, the sealing form is metal-to-metal sealing, the metal sealing ring can be exchanged for metal sealing, and the stainless steel plate and graphite composite plate sealing ring is sea

Product Parameter

The disc of the hard-sealed butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open.

Main dimensions and connection dimensions:

National standard (GB) PN1.0MPa
DN	L	D	D1	D2	b	f	Z-фd	H
50	108	165	125	102	18	3	4-ф18	195
65	112	185	145	122	18	3	8-ф18	215
80	114	200	160	138	20	3	8-ф18	215
100	127	220	180	158	20	3	8-ф18	235
125	140	250	210	188	22	3	8-ф18	290
150	140	285	240	212	22	3	8-ф22	310
200	152	340	295	268	24	3	8-ф22	360
250	165	395	350	320	26	3	12-ф22	395
300	178	445	400	370	26	4	12-ф22	425
350	190	505	460	430	26	4	16-ф22	475
400	216	565	515	482	26	4	16-ф26	520
450	222	615	565	532	28	4	20-ф26	550
500	229	670	620	585	28	4	20-ф26	610
600	267	780	725	685	34	5	20-ф30	655
700	292	895	840	800	34	5	24-ф30	725
800	318	1015	950	905	36	5	24-ф33	795
900	330	1115	1050	1005	38	5	28-ф33	885
1000	410	1230	1160	1110	38	5	28-ф36	950
1200	470	1455	1380	1330	44	5	32-ф39	1125
1400	530	1675	1590	1535	48	5	36-ф42	1275
1600	600	1915	1820	1760	52	5	40-ф48	1470
1800	670	2115	2020	1960	56	5	44-ф48	1585
2000	760	2325	2230	2170	60	5	48-ф48	1720
National standard (GB) PN1.6MPa
DN	L	D	D1	D2	b	f	Z-фd	H
50	108	165	125	102	18	3	4-ф18	195
65	112	185	145	122	18	3	8-ф18	215
80	114	200	160	138	20	3	8-ф18	215
100	127	220	180	158	20	3	8-ф18	235
125	140	250	210	188	22	3	8-ф18	290
150	140	285	240	212	22	3	8-ф22	310
200	152	340	295	268	24	3	12-ф22	360
250	165	405	355	320	26	3	12-ф26	395
300	178	460	410	378	28	4	12-ф26	425
350	190	520	470	438	30	4	16-ф26	475
400	216	580	525	490	32	4	16-ф30	520
450	222	640	585	550	34	4	20-ф30	550
500	229	715	650	610	36	4	20-ф33	610
600	267	840	770	725	38	5	20-ф36	655
700	292	910	840	795	40	5	24-ф36	725
800	318	1025	950	900	42	5	24-ф39	795
900	330	1125	1050	1000	44	5	28-ф39	885
1000	410	1255	1170	1115	46	5	28-ф42	950
1200	470	1485	1390	1330	52	5	32-ф48	1125
1400	530	1685	1590	1530	58	5	36-ф48	1275
1600	600	1930	1820	1750	64	5	40-ф56	1470
1800	670	2130	2020	1950	68	5	44-ф56	1585
2000	760	2345	2230	2150	70	5	48-ф62	1720
National standard (GB) PN2.5MPa
DN	L	D	D1	D2	b	f	Z-фd	H
50	108	165	125	102	20	3	4-ф18	195
65	112	185	145	122	22	3	8-ф18	215
80	114	200	160	138	24	3	8-ф18	215
100	127	235	190	162	24	3	8-ф22	235
125	140	270	220	188	26	3	8-ф26	290
150	140	300	250	218	28	3	8-ф26	310
200	152	360	310	278	30	3	12-ф26	370
250	165	425	370	335	32	3	12-ф30	397
300	178	485	430	395	34	4	16-ф30	455
350	190	555	490	450	38	4	16-ф33	495
400	216	620	550	505	40	4	16-ф36	535
450	222	670	600	555	46	4	20-ф36	560
500	229	730	660	615	48	4	20-ф36	620
600	267	845	770	720	50	5	20-ф39	685
700	292	960	875	820	54	5	24-ф42	750
800	318	1085	990	930	58	5	24-ф48	870
900	330	1185	1090	1030	60	5	28-ф48	965
1000	410	1320	1210	1140	62	5	28-ф56	1040
1200	470	1530	1420	1350	70	5	32-ф56	1180
1400	530	1755	1640	1560	76	5	36-ф62	1365
1600	600	1975	1860	1780	84	5	40-ф62	1580
National standard (GB) PN4.0MPa
DN	L	D	D1	D2	b	f	Z-фd	H
50	150	165	125	102	20	3	4-ф18	195
65	170	185	145	122	22	3	8-ф18	210
80	180	200	160	138	24	3	8-ф18	230
100	190	235	190	162	24	3	8-ф22	250
125	200	270	220	188	26	3	8-ф26	295
150	210	300	250	218	28	3	8-ф26	340
200	230	375	320	285	34	3	12-ф30	390
250	250	450	385	345	38	3	12-ф33	485
300	270	515	450	310	42	4	16-ф33	490
350	290	580	510	465	46	4	16-ф36	540
400	310	660	585	535	50	4	16-ф39	620
450	330	685	610	560	57	4	20-ф39	645
500	350	755	670	615	57	4	20-ф42	670