Flanged Butterfly Valve

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Flanged Butterfly Valve

Applications

Our flanged butterfly valves can be used in water conveyance systems, seawater pipeline systems, gas pipeline systems, and weak acid-base transport systems.

Basic Information

Size Range: DN40-DN1200

Temperature Range T: 0-100℃

Maximum Allowable Operating Pressure PN: 1.0-1.6Mpa

Pressure Rating: 1.5-2.4Mpa (Shell)
1.1-1.76Mpa (Seal)

Applicable Media: Freshwater, seawater, air, weak acid-base, and so on.

Materials

No.	Part	Material	No.	Part	Material
1	Valve Body	Cast iron, stainless steel, cast steel, aluminum bronze.	7	Worm Gear	Cast Iron
2	Valve Disc	QT450 Nickel Plated, QT450 Nylon Coated, Aluminum Bronze, Stainless Steel 304, Stainless Steel 316, Stainless Steel 316L, Stainless Steel 2507, Stainless Steel 1.4469, and Stainless Steel 1.4529.	8	Bolts	45#, Stainless Steal
3	Valve Seat (Rubber)	EPDM, NBR, FTFE, silicone, fluoroelastomer, heat-resistant EPM, and wear-resistant EPM	9	Retaining Ring	50# Mangalloy
4	Upper Stem	45#, 304, 316, 420 Stainless Steel	10	Thrust Washer	45# Galvanized Steel
5	Lower Stem	45#, 420 Stainless Steel	11	Gasket	45#Galvanized Steel
6	Retaining Rod	UPVC, 45#	12	Lubricating Sleeve	PTFE

Specifications

Size	ØD	ØD1	ØD2	ØD3	n-Ød1	n-Ød2	H1	H2	H3	M*M	L

DN40	110	72	50	150	4-Ø18	4-Ø7	76	136	11	11*11	110
DN50	125	72	50	165	4-Ø18	4-Ø7	81	142	11	11*11	110
DN65	145	72	50	185	4-Ø18	4-Ø7	96	146	11	11*11	114
DN80	160	72	50	200	4-Ø18	4-Ø7	98	152	11	11*11	116
	160			200	8-Ø18
DN100	180	92	70	220	8-Ø18	4-Ø10	111	175	14	14*14	129
DN125	210	92	70	250	8-Ø18	4-Ø10	128	181	17	17*17	142
DN150	240	92	70	285	8-Ø22	4-Ø10	143	200	17	17*17	142
DN200	295	125	102	340	8-Ø22	4-Ø12	172	233	22	22*22	154
	295			340	12-Ø22
DN250	350	125	102	395	12-Ø22	4-Ø12	199	265	22	22*22	167
	355			405	12-Ø26
DN300	400	150	125	445	12-Ø22	4-Ø14	231	298	27	27*27	180
	410			460	12-Ø26
DN350	460	150	125	505	16-Ø22	4-Ø14	253	326	27	27*27	192
	470			520	16-Ø26
DN400	515	175	140	565	16-Ø26	4-Ø18	266	367	40	36*36	218
	525			580	16-Ø30
DN450	565	175	140	615	20-Ø26	4-Ø18	299	408	40	36*36	224
	585			640	20-Ø30
DN500	620	210	165	670	20-Ø26	4-Ø22	327	434	50	46*46	231
	650			715	20-Ø33
DN600	725	210	165	780	20-Ø30	4-Ø22	385	506	50	46*46	270
	770			840	20-Ø36
DN700	840	300	254	895	24-Ø30	8-Ø18	456	556	70	64*64	293
	840			910	24-Ø36
DN800	950	300	254	1015	24-Ø33	8-Ø18	487	604	70	64*64	318
	950			1025	24-Ø39
DN900	1050	300	254	1115	28-Ø33	8-Ø18	555	688	80	74*74	328
	1050			1125	28-Ø39
DN1000	1160	300	254	1230	28-Ø36	8-Ø18	621	738	80	74*74	413
	1170			1255	28-Ø42
DN1200	1380	350	298	1455	32-Ø39	8-Ø22	775	925	90	84*84	473
	1390			1485	32-Ø48

Certifications

Item	Standard	Optional Standard
Design & Manufacture	GB12238-89	ISO/DIN10631-91, AP1598
Face to Face Dimension	GB12221-89	ISO5752-88
Flange Connection	GB9113.1-2000, GB/T9119-2010	ANSI.B16.5, ISO7005, JIS2220:2004, DIN2532
Valve Test	GB/T13927-92	ISO/DIN 5208-87
Valve Mark	GB12220-89	ISO/DIN 5209-87
Valve Supply Requirements	GB/T12252	／

Secure Flange Connection

Flanged butterfly valves feature a raised surface on valve components that securely fits into a corresponding groove on the opposing surface, ensuring a reliable connection.

Ideal for Heavy-Duty Pipelines

The design of flanged butterfly valves makes them well-suited for heavy-duty pipeline applications where durability and dependability are crucial.

Versatile Performance

Crafted with high-quality materials and optimized design, our flanged butterfly valves exhibit excellent performance in both commercial and industrial settings, even in extreme temperature conditions.