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Hard sealing wafer 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.

The main technical parameters:

Nominal through DN (mm)	50～2000
Nominal pressure PN (MPa)	0.6	1.0	1.6	2.5
Sealing test (MPa)	0.66	1.1	1.76	2.75
Strength test (MPa)	0.9	1.5	2.4	3.75
proper temperature	Carbon steel: -29℃～425℃ Stainless steel: -40℃～650℃
Applicable media	Water, air, natural gas, oil and weak corrosive fluids
Leak rate	Comply with GB/T13927-92 standard
drive mode	Worm gear drive, electric, pneumatic, hydraulic

Main parts and materials:

Part Name	Material
Valve body	WCB, alloy steel, stainless steel, QT450-10
Butterfly	WCB, alloy steel, stainless steel, QT450-10
Valve shaft	2Cr13 stainless steel, alloy steel
Sealing ring	stainless steel ring
Filler	Flexible graphite

Main external dimensions and connection dimensions：

National standard (GB) PN1.0MPa
DN	L	D1	D2	Z-фd（M)	H
80	49	160	132	8-ф18（M16)	215
100	56	180	156	8-ф18（M16)	225
125	64	210	184	8-ф18（M16)	290
150	70	240	211	8-ф22（M20)	315
200	71	295	266	8-ф22（M20)	360
250	76	350	319	12-ф22（M20)	395
300	83	400	370	12-ф22（M20)	425
350	92	460	429	16-ф22	480
400	102	515	480	16-ф26	505
450	114	565	530	20-ф26	540
500	127	620	582	20-ф26	575
600	154	725	682	20-ф30	685
700	165	840	794	24-ф30	755
800	190	950	901	24-ф33	825
900	203	1050	1001	28-ф33	960
1000	216	1160	1112	28-ф36	1015
1200	254	1380	1328	32-ф39	1150
1400	279	1590	1530	36-ф42	1345
National standard (GB) PN1.6MPa
DN	L	D1	D2	Z-фd	H
80	49	160	132	8-ф18	215
100	56	180	156	8-ф18	225
125	64	210	184	8-ф18	290
150	70	240	211	8-ф22	315
200	71	295	266	12-ф22	360
250	76	350	319	12-ф26	395
300	83	400	370	12-ф26	425
350	92	460	429	16-ф26	480
400	102	515	480	16-ф30	505
450	114	565	530	20-ф30	540
500	127	620	582	20-ф33	575
600	154	725	682	20-ф36	685
700	165	840	794	24-ф36	755
800	190	950	901	24-ф39	825
900	203	1050	1001	28-ф39	960
1000	216	1160	1112	28-ф42	1015
1200	254	1380	1328	32-ф48	1150
1400	279	1590	1530	36-ф48	1345
National standard (GB) PN2.5MPa
DN	L	D1	D2	Z-фd	H
80	49	160	132	8-ф18	215
100	56	190	156	8-ф22	225
125	64	220	184	8-ф26	290
150	70	250	211	8-ф26	315
200	71	310	274	12-ф26	360
250	76	370	330	12-ф30	395
300	83	430	389	16-ф30	460
350	92	490	448	16-ф33	475
400	102	550	503	16-ф36	520
450	114	600	548	20-ф36	550
500	127	660	609	20-ф36	625
600	154	770	720	20-ф39	685
700	165	875	820	24-ф42	790
800	190	990	928	24-ф48	890
900	203	1090	1028	28-ф48	960
1000	216	1210	1140	28-ф56	1055
1200	254	1420	1350	32-ф56	1185
1400	279	1640	1560	36-ф60	1345
National standard (GB) PN4.0MPa
DN	L	D1	D2	Z-фd	H
80	64	160	135	8-ф18	230
100	64	190	160	8-ф22	250
125	70	220	188	8-ф26	295
150	76	250	218	8-ф26	340
200	89	320	282	12-ф30	390
250	114	385	345	12-ф33	485
300	114	450	408	16-ф33	490
350	127	510	465	16-ф36	540
400	140	585	535	16-ф39	620
450	152	610	560	20-ф39	645
500	152	670	612	20-ф42	670
600	178	795	730	20-ф48	740
700	229	900	835	24-ф48	900
800	241	1030	960	24-ф56	975