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Triple eccentric butterfly valve

Technical Specifications

Product model: D373W/H
Nominal diameter: DN50 - 1200mm
Nominal pressure: PN 0.6 - 6.4 MPa
Applicable temperature: ≤ 400℃
Applicable media: Water, oil, gas, acetic acid, nitric acid and other media.
Valve body material: WCB, CF8, CF8 chromium-molybdenum steel, low-temperature steel, nickel alloy, Monel, Duplex Steel
Drive mode: Worm gear transmission, electric, pneumatic, hydraulic

Sales Hotline：

0086-21-59110018

Product Details

Product structural characteristics

The three-offset eccentric butterfly valve changes the normal cone angle to an inclined cone angle. This reduces the eccentricity between the valve stem and the valve body center, and consequently reduces the opening torque. It is widely used in industrial pipelines such as metallurgy, power, petrochemicals, water supply and drainage, and municipal construction, for regulating flow and controlling fluid.

Its main structural features are

1. The butterfly plate and the sealing surface have no friction during opening and closing, and it is a forced seal.
2. Can be installed at any position;
3. Zero-leakage structural design;
4. You can choose between metal and non-metal, as well as metal and metal sealing methods.
5. Customers can choose from one-way valves and two-way valves.
6. Optional dynamic load type packing;
7. Optional low-leakage packing to meet the requirements of ISO 15848;
8. The valve stem can be designed for extension;
9. We can design low-temperature valves or ultra-low temperature valves according to customer requirements.

Main external connection dimensions PN（6、10）MPa

DN	Dimensions of the shape					Connection dimensions
	L	H	D73H/D373H/D673H/D973H			PN0.6MPa		PN1.0MPa
	L	H	H1	A1	B1	D1	Z-d	D1	Z-d
50	43	112	350	180	200	110	4-14	125	4-18
65	46	115	370	180	200	130	4-14	145	4-18
80	64	120	380	180	200	150	4-18	160	8-18
100	64	138	420	180	200	170	8-18	180	8-18
125	70	164	460	180	200	200	8-18	210	8-18
150	76	175	555	270	280	225	8-18	240	8-22
200	89	208	605	270	280	280	12-18	295	8-22
250	114	243	680	270	280	335	12-22	350	12-22
300	114	283	800	380	420	395	12-22	400	12-22
350	127	310	835	380	420	445	16-22	460	16-22
400	140	340	915	450	470	495	16-22	515	16-26
450	152	380	960	480	490	550	16-22	565	20-26
500	152	410	1020	480	490	600	20-22	620	20-26
600	178	470	1225	480	490	705	20-26	725	20-30
700	229	550	1355	640	660	810	24-26	840	24-30
800	241	640	1470	640	660	902	24-30	950	24-33
900	241	710	1545	750	860	1020	24-30	1050	28-33
1000	300	770	1795	850	900	1120	28-30	1160	28-36
1200	360	890	1965	850	900	1340	32-33	1380	32-39

Main external connection dimensions PN（16、25）MPa

DN	Dimensions (of the shape)					Connection dimensions
	L	H	D73H/D373H/D673H/D973H			PN1.6MPa		PN2.5MPa
	L	H	H1	A1	B1	D1	Z-d	D1	Z-d
50	43	112	350	180	200	125	4-18	125	4-18
65	46	115	370	180	200	145	4-18	145	8-18
80	49	120	380	180	200	160	8-18	160	8-18
100	56	138	420	180	200	180	8-18	190	8-22
125	64	164	460	180	200	210	8-18	220	8-26
150	70	175	555	270	280	240	8-22	250	8-26
200	71	208	605	270	280	295	12-22	310	12-26
250	76	243	680	270	280	335	12-26	370	12-30
300	83	283	825	380	420	410	12-26	430	16-30
350	92	310	900	380	420	470	16-26	490	16-33
400	102	340	980	450	470	525	16-30	550	16-36
450	114	380	1030	480	490	585	20-30	600	20-36
500	127	410	1105	480	490	650	20-33	660	20-36
600	154	470	1310	480	490	770	20-36	770	20-39
700	165	550	1435	640	660	840	24-36	875	24-42
800	190	640	1605	640	660	950	24-39	990	24-48
900	203	710	1745	750	860	1050	28-39	1090	28-48
1000	216	770	1885	850	900	1170	28-42	1210	28-56
1200	254	890	2105	850	900	1390	32-48	1420	32-56