Home Product Butterfly Valve Series

Product Classification

Control Valve Series Ball Valve Series Butterfly Valve Series Gate Valve Series Globe Valve Series Check Valve Series Water Control Valve Series Filter Series Steam Trap Series

Flange double eccentric butterfly valve

Technical Specifications

Nominal Pressure: PN0.6 - 2.5 MPa
Nominal Diameter: DN100 - DN4000
Connection Type: Flange
Operating Medium: Water, oil, gas and various corrosive media
Applicable Temperature: -10℃ - 120℃
Connection Standards: GB·ANSI·DIN·API·ISO·BS
Valve Body Material: Cast iron; Ductile iron; Anti-corrosion valve body components, blue epoxy resin coating
Valve Seat Material: 316 stainless steel
Valve Plate Material: Stainless steel; Machined cast iron

Sales Hotline：

0086-21-59110018

Product Details

Product features

1. The double eccentric structure design avoids the wear of the sealing connection surface, maintaining the integrity of the seal and achieving a long service life.
2. The wide-angle valve seat design prevents the excessive compression damage caused by the tight contact between the valve seat and the valve disc, providing a longer service life.
3. The two-stage high-strength valve stem structure ensures convenient maintenance, and the double eccentric structure makes it easy and quick to maintain the valve seat and valve disc in operation.
4. The streamlined spherical valve disc has a high flow coefficient.
5. The internal valve stem/valve disc drive avoids the possibility of more leakage paths caused by the installation of pins or bolts.
6. The flexible fixing ring provides compensatory valve seat sealing pressure on the valve disc, featuring a simple structure, light weight, small driving torque, easy and rapid operation, and good flow regulation function and closing sealing characteristics.
7. The valve stem seal is made of efficient PTFE.

Main external connection dimensions

DN	Main dimensions of the shape					Flange dimensions and bolt hole dimensions
	L	H	H1	A	B	1.0MPa				1.6MPa
	L	H	H1	A	B	D	D1	D2	n-d	D	D1	D2	n-d
50	108	82.5	306	80	80	165	125	99	4-18	165	125	99	4-18
65	112	92.5	321	80	80	185	145	118	4-18	185	145	118	4-18
80	114	100	346	80	80	200	160	132	8-18	200	160	132	8-18
100	127	110	387	95	95	220	180	156	8-18	220	180	156	8-18
125	140	125	411	95	95	250	210	184	8-18	250	210	184	8-18
150	140	142.5	447	95	95	285	240	211	8-22	285	240	211	8-22
200	152	170	607	190	308	340	295	266	8-22	340	295	266	12-22
250	165	192.5	688	190	308	395	350	319	12-22	405	355	319	12-26
300	178	222.5	742	190	308	445	400	370	12-22	460	410	370	12-26
350	190	252.5	797	190	308	505	460	429	16-22	520	470	429	16-26
400	216	282.5	930	270	466	565	515	480	16-26	580	525	480	16-30
450	222	307.5	975	270	466	615	565	530	20-26	640	585	548	20-30
500	229	335	1065	270	466	670	620	582	20-26	715	650	609	20-33
600	267	390	1225	457	625	780	725	682	20-30	840	770	720	20-36
700	292	447.5	1343	457	625	895	840	794	24-30	910	840	794	24-36
800	318	507.5	1436	457	625	1015	950	901	24-33	1025	950	901	24-39
900	330	557.5	1616	598	853	1115	1050	1001	28-33	1125	1050	1001	28-39
1000	410	615	1711	598	853	1230	1160	1112	28-36	1255	1170	1112	28-42
1200	470	727.5	1971	598	853	1455	1380	1328	32-39	1485	1390	1328	32-48
1400	530	837.5	2218	860	1345	1675	1590	1530	36-42	1685	1590	1530	36-48
1600	600	957.5	2578	860	1345	1915	1820	1750	40-48	1930	1820	1750	40-56
1800	670	1057.5	2689	860	1345	2115	2020	1950	44-48	2130	2020	1950	44-56
2000	760	1162.5	3022	952	1592	2325	2230	2150	48-48	2345	2230	2150	48-62