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Product classification

Center Lug Butterfly Valve

● Suitable for interception and flow adjustment in pipelines with chemical solvent media such as fresh water, sea water, oil, etc. at -10℃-120℃.
●Butterfly valve material: Valve body: cast steel, ductile iron, tin bronze, stainless steel
● Valve plate: stainless steel, aluminum bronze
● Valve stem: stainless steel
●Sealing: NBR, EPDM, PTFE

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Product Description

The design requirements of central butterfly valve meet GB/T3036-2005

This product is suitable for intercepting and regulating flow in pipelines with chemical solvent media such as fresh water, seawater, and oil at -10℃-120℃.

(Order after consulting with special requirements)

Butterfly valve material: Valve body: cast steel, ductile iron, tin bronze, stainless steel

Valve plate: stainless steel, aluminum bronze

Stem: stainless steel

Seal: NBR, EPDM, PTFE

Dimensional drawing

Appearance and connection dimensions

diameter	Valve structure size			flange								top flange
	Valve structure size			GB2506-2005 PN10				JIS 10K				IS05211						TIANJIN STANDARD
	H1	H2	L	D	D1	n	d0	D	D1	n	d0	H	φ	0D	PCD	b	n1-d1	H	φ	0D	PCD	b	n1-dl
DN50	80	161	43	165	125	4	M16\|	155	120	4	M16	30	18	90	70	6	4-φ10	30	12.6	77	57	3	4-φ7
DN65	89	175	46	185	145	4	M16	175	140	4	M16	30	18	90	70	6	4-φ10	30	12.6	77	57	3	4-φ7
DN80	95	181	46	200	160	8	M16	185	150	8	M16	30	18	90	70	6	4-φ10	30	12.6	77	57	3	4-φ7
DN100	114	200	52	220	180	8	M16	210	175	8	M16	30	18	90	70	6	4-φ10	30	15.8	90	70	5	4-φ11
DN125	127	213	56	250	210	8	M16	250	210	8	M20	30	18	90	70	6	4-φ10	30	18.9	90	70	5	4-φ11
DN150	139	226	56	285	240	8	M20	280	240	8	M20	30	18	90	70	6	4-φ10	30	18.9	90	70	5	4-φ11
DN200	175	260	60	340	295	8	M20	330	290	12	M20	45	22	125	102	8	4-φ12	45	22.2	115	89	5	4-φ15
DN250	203	292	68	395	350	12	M20	400	355	12	M22	50	28	125	102	10	4-φ12	45	28.6	115	89	8	4-φ15
DN300	242	337	78	445	400	12	M20	445	400	16	M22	65	36	150	125	10	4-φ14	45	31.8	140	108	8	4-φ15
DN350	267	368	78	505	460	16	M20	490	445	16	M22	65	36	150	125	10	4-φ14	45	31.8	140	108	8	4-φ15
DN400	309	400	102	565	515	16	M24	560	510	16	M24	70	42	175	140	12	4-φ18	50	33.34	197	159	10-2	4-φ21
DN450	328	422	114	615	565	20	M24	620	565	20	M24	70	42	175	140	12	4-φ18	50	38	197	159	10-2	4-φ21
DN500	361	480	127	670	620	20	M24	675	620	20	M24	80	50	210	165	16	4-φ22	65	41.15	197	159	10-2	4-φ21
DN600	459	562	154	780	725	20	M27	795	730	24	M30	80	50	210	165	16	4-φ22	70	50.65	276	216	16-2	4-φ23
DN700	470	600	165	895	840	24	M27	905	840	24	M30	115	60	300	254	18	8-φ18	80	63.35	300	254	18-2	8-φ18
DN800	523	662	190	1015	950	24	M27	1020	950	28	M30	115	60	300	254	18	8-φ18	80	63.35	300	254	18-2	8-φ18
DN900	589	710	203	1115	1050	28	M30	1120	1050	28	M30	120	72	300	254	20	8-φ18	120	75	300	254	20-2	8-φ18
DN1000	656	780	216	1230	1160	28	M33	1235	1160	28	M36	120	72	300	257	20	8-φ18	140	85	300	254	20-2	8-φ18