D343H Japanese standard flanged hard seal butterfly valve

Worm gear flange butterfly valve model: D343H	Nominal diameter of worm gear flange butterfly valve: 50MM-1200MM	Worm gear flange butterfly valve use pressure: 1.6MPA-10.0MPA
Worm gear flange butterfly valve connection mode: flange connection	Worm gear flange butterfly valve form: manual worm gear	Worm gear flange butterfly valve main function: switch function
Worm gear flange butterfly valve using medium: water oil product steam	Worm gear flange butterfly valve material: cast steel stainless steel chromium molybdenum steel	Worm gear flange butterfly valve standard: mechanical ministry standard or custom non-standard

Worm gear flange butterfly valve structure characteristics and uses

Worm gear flange butterfly valve has compact structure, small size, light weight, flexible operation and easy maintenance.
Worm gear flange butterfly valve design using three eccentric sealing principle, sealing performance is reliable.
The sealing pair of worm gear flange butterfly valve is made of stainless steel material, and special process is carried out in the manufacturing process. It has the characteristics of high temperature resistance, corrosion resistance and long service life.
The flow-over area of worm gear flange butterfly valve is large, the flow resistance coefficient is small, and the flow capacity is large.
Worm gear flange butterfly valve anti-aging, radiation, durable.

Main performance specifications for worm gear flanged butterfly valves

Nominal pressure	Test pressure (MPa)
Nominal pressure	Shell strength test	Seal test
0.6	0.9	0.66
1.0	1.5	1.1
1.6	2.4	1.8
2.5	3.8	2.8
4.0	6.0	4.4

Worm gear flange butterfly valve pressure test standard

Nominal pressure	Test pressure (MPa)
Nominal pressure	Shell strength test	Seal test
0.6	0.9	0.66
1.0	1.5	1.1
1.6	2.4	1.8
2.5	3.8	2.8
4.0	6.0	4.4

Worm gear flange butterfly valve use medium and temperature

Product type	Suitable media	Applicable temperature (C)
Carbon steel type (C)	Water, steam, oil, air	300 or less
Alloy steel type (I)	Steam, oil	650 or less
Stainless Steel High temperature type (P II)	Steam, oil, acid, sea water	900 or less

Worm gear flange butterfly valve main parts materials

Product type	Part name
Product type	Body	Butterfly plate	Valve shaft	Sealing face
Carbon steel type (C)	WCB	WCB	Chrome stainless steel	Iron base alloy
Alloy steel type (I)	C5	C5	Chrome molybdenum barium steel	Cobalt-based alloy
Stainless Steel High temperature type (P II)	High nickel chromium steel	High nickel-chromium steel	Chromium nickel molybdenum titanium steel	Cobalt-tungsten alloy

Worm gear flange butterfly valve main dimensions and weight

Nominal diameter	Nominal pressure	Main overall dimensions and connection dimensions (mm)				Weight (Kg)
Nominal diameter	Nominal pressure	L	H	L1	Do	Weight (Kg)
50	0.6	43	143	266	316	5.5
65		46	143	266		7
80		49	160	266		9
100		56	170	266		11.5
125		64	210	345		17
150		70	212	345		22
200		71	217	353		39
250		76	280	353		47
300		83	307	353		68
400		102	650	385		187
450		114	seven hundred	400	316	225
500		127	739	400	316	260
600		154	934	490	520	383
seven hundred		165	1020	500	520	462
800		190	1075	500	520	570
900		203	1160	632	640	701
1000		216	1345	720	640	800
1200		254	1520	720		922
50	1.0	43	143	266		5.5
65		46	143	266		7
80		49	160	266		9
100		56	306	200		19.5
125		64	310	200	160	22
150		70	340	200	160	30
200		71	410	200	240	40
250		76	450	200	240	51
300		83	555	260	316	60
350		92	650	260	316	117
400		102	655	385	316	189
450		114	seven hundred	400	316	228
500		127	742	400	316	259
600		154	934	490	316	388
seven hundred		165	1020	504	520	462
800		190	1075	504	520	559
900		203	1160	632	640	seven hundred
1000		216	1345	720	640	786
1200		254	1520	720	640	907
50	1.6	43	143	266		5.5
65		46	143	266		7
80		49	160	266		9
100		56	306	200	160	20
125		64	310	200	160	23
150		70	340	200	160	29
200		71	410	200	240	40
250		76	450	200	240	50
300		83	555	260	316	60
350		92	650	260	316	120
400		102	655	390	316	190
450		114	seven hundred	400	316	230
500		127	742	400	316	265
600		154	934	490	520	390
seven hundred		165	1020	504	520	465
800		190	1075	504	520	570
900		203	1160	632	640	seven hundred
1000		216	1365	720	640	803
1200		254	1540	720	640	920
50	2.5	43	143	266		6.3
65		46	143	266		9
80		49	160	266		11
100		56	308	200	160	25
125		64	310	200	160	33
150		70	340	200	240	47
200		71	410	200	240	52
250		76	450	200	316	65
300		83	555	260	36	123
350		92	650	260	316	190
400		102	680	385	316	230
450		114	seven hundred	400	316	265
500		127	742	400	316	390
600		154	932	550	520	465
seven hundred		165	1020	550	520	570
800		190	1075	550	520	705
900		203	1180	632	640	730
1000		216	1370	720	640	927
1200		254	1430	720	640	953
50	4.0	43	143	266	6.3
65		46	143	266	9
80		49	160	266	11
100		56	308	200	160	25
125		64	310	200	160	33
150		70	340	200	160	47
200		71	410	200	240	55
250		76	450	200	240	70
300		83	560	260	316	135
350		92	667	260	316	203
400		102	692	385	316	245
450		114	713	400	316	283
500		127	762	400	316	405
600		154	944	550	520	591
seven hundred		165	1035	632	640	723
800		190	1118	720	640	846

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