Pneumatic hard seal to clamp butterfly valve-Pneumatic valve series-气动阀厂家-上海冠环阀门制造有限公司

Product overview

Pneumatic clamping butterfly valve with precision J-shaped elastic seal ring and three eccentric multi-layer metal hard seal structure, is widely used in the medium temperature ≤425℃ metallurgy, electric power, petrochemical industry and water supply and drainage and municipal construction and other industrial pipelines, for regulating flow and load body use. The valve adopts three eccentric structure, the valve seat and plate sealing surface are made of different hardness and stainless steel, with good corrosion resistance, long service life, the valve has a two-way sealing function.

Product characteristics

1, the valve adopts three eccentric sealing structure, the valve seat and the butterfly plate almost no wear, with the tighter the sealing function.

2, the sealing ring is made of stainless steel, with the double advantages of metal hard seal and elastic seal, regardless of low temperature and high temperature, it has excellent sealing performance, corrosion resistance, long service life and other characteristics.

3, the sealing surface of the butterfly plate adopts surfacing welding cobalt-based cemented carbide, the sealing surface is wear-resistant and has long service life.

4, large specifications of the plate quilted structure, high strength, large flow area, small flow resistance.

5, the valve has a bidirectional sealing function, installation is not limited by the flow of the medium, is not affected by the spatial position, can be installed in any direction.

6, the drive device can be installed in multiple stations (rotation 90° or 180°), easy to use.

Main connection size

Nominal Diameter （DN）	main dimension			Flange dimensions and bolt specifications
	main dimension			1.0MPa		1.6MPa		2.5MPa
	L	H	H1	D1	4-ФM	D1	4-ФM	D1	4-ФM
50	43	350	112	125	Ф18	125	Ф18	125	Ф18
65	46	370	115	145	Ф18	145	Ф18	145	Ф18
80	49	380	120	160	Ф18	160	Ф18	160	Ф18
100	56	420	138	180	Ф18	180	Ф18	190	Ф23
125	64	460	164	210	Ф18	210	Ф18	220	Ф27
150	70	555	175	240	Ф23	240	Ф23	250	Ф27
200	71	605	208	295	M20	295	M20	310	M24
250	76	680	243	350	M20	355	M24	370	M27
300	83	800	283	400	M20	410	M24	430	M27
350	92	835	310	460	M20	470	M24	490	M30
400	102	915	340	515	M24	525	M27	550	M33
450	114	960	380	565	M24	585	M27	600	M33
500	127	1020	410	620	M24	650	M30	660	M33
600	154	1225	470	725	M27	770	M33	770	M36
700	165	1355	550	840	M27	840	M33	875	M39
800	190	1470	640	950	M30	950	M36	990	M45
900	203	1545	710	1050	M30	1050	M36	1090	M45
1000	216	1795	770	1160	M33	1170	M39	1210	M52
1200	254	1965	890	1380	M36	1390	M45	1420	M52