Three eccentric metal hard seal butterfly valve(Worm Gear)

Technical Parameters

Fluid medium: Water, oil, gas and various corrosive media
Temperature Range: -2℃～450℃
Pressure Ratings: PN0.6～6.4MPa
Size Range: DN100～DN3600
Connection Type: Flanged;Double folder;Welding
Connection standard: GB·ANSI·API
Body Materials: Carbon steel;Stainless stee;Aluminum bronze
Valve seat material: Stelli Alloy;Tungsten carbide;Nickel alloy;Monel;Stainless steel
Valve plate material: Stellite;Stainless steel;Alloy steel
Note: All parts can be made of different materials according to actual working conditions.

Product Details

Product Features

1.The main seal is a three-dimensional multi-level metal seal, stainless steel and stainless steel, open or closed valve sealing surface friction between the sealing surface of short stroke, long service life, close the valve is closed tightly, reliable sealing performance. The elastic properties of the composite metal seal ring make the valve leak free.
2.The use of three eccentric structure design, reduce the friction between the sealing surface, the valve in the actual operation of the process has a role in the compensation of the three, making the valve performance is higher, longer life.
3.The structure of the truss is adopted, and the streamline design of the valve plate is realized, and the casting quality of the valve plate surface is improved, and the flow resistance is reduced. The stainless steel ring mounted on the body, as the cone structure, conducive to fluid circulation, but also improve the casting quality of the inner cavity of the valve body, reduce the flow resistance.

蝸輪法蘭式硬密封蝶閥(圖1)

Main overall connection dimensions

Nominal Diameter （DN）	Dimensions			Flange size and bolt specifications
	Dimensions			1.0MPa			1.6MPa			2.5MPa
	L	H1	H	D	D1	n-Фd	D	D1	n-Фd	D	D1	n-Фd
50	108	350	112	165	125	4-18	165	125	4-18	165	125	4-18
65	112	370	115	185	145	4-18	185	145	4-18	185	145	8-18
80	114	380	120	200	160	4-18	200	160	8-18	200	160	8-18
100	127	420	138	220	180	8-18	220	180	8-18	235	190	8-22
125	140	460	164	250	210	8-18	250	210	8-22	270	220	8-26
150	140	555	175	285	240	8-22	285	240	8-22	300	250	8-26
200	152	760	200	340	295	8-22	340	295	12-22	360	310	12-26
250	165	830	243	395	350	12-22	405	355	12-26	425	370	12-30
300	178	895	250	445	400	12-22	460	410	12-26	485	430	16-30
350	190	950	280	505	460	16-22	520	470	16-26	555	490	16-33
400	216	1190	305	565	515	16-26	580	525	16-30	620	550	16-36
450	222	1255	350	615	565	20-26	640	585	20-30	670	600	20-36
500	229	1305	380	670	620	20-26	715	650	20-33	730	660	20-36
600	267	1340	445	780	725	20-30	840	770	20-36	845	770	20-39
700	292	1520	480	895	840	24-30	910	840	24-36	960	875	24-42
800	318	1710	530	1015	950	24-33	1025	950	24-39	1085	990	24-48
900	330	1810	580	1115	1050	28-33	1125	1050	28-39	1185	1090	28-48
1000	410	1960	650	1230	1160	28-36	1255	1170	28-42	1320	1210	28-56
1200	470	2250	760	1455	1380	32-39	1485	1390	32-48	1530	1420	32-56
1400	530	2435	850	1675	1590	36-42	1685	1590	36-48	1755	1640	36-62
1600	600	2780	1030	1915	1820	40-48	1930	1820	40-56	1975	1860	40-62
1800	670	3020	1230	2115	2020	44-48	2130	2020	44-56	2195	2070	44-70
2000	760	3270	1350	2325	2230	48-48	2345	2230	48-62	2425	2300	48-70

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