China Eccentric butterfly valve supplier

Eccentric butterfly valve

Material of eccentric butterfly valve: WCB,WC6,LCB,CF8,CF8M.CF3.CF3M,CN7M,904L

Size of eccentric butterfly valve: 2inch(DN50) - 160 inch (DN4000)

Pressure of eccentric butterfly valve: 150LB(PN10)-600LB(PN100)

Connection type: Flange(FF,RF,) BW, WAFER

Kind of drive: Wrench,Gear,Electric actuators and pneumatic actuators

Operating temperature : -100℃ - 400℃

Working medium : water, gas,oil,

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Catalogue:

butterfly valve.pdf

Introduction for eccentric butterfly valve:

For the structure of the eccentricity butterfly valve, they have two types, one type is double eccentric butterfly valve and another type is triple Eccentric Butterfly Valve, the seal of this valves is very good and the sealing face is very wear-resisting.when the valve is under the complete open state, the sealing face for disc will break away from the valve sealing face of seat completely; when it is opened from 0 to 90°, the sealing face for disc will break away from the sealing face of seat upon opening; when it is closed from 90° to 0° and only upon closing, the sealing face for disc can contact and press onto the valve seat sealing face tightly.this type of the valves mainly used in high pressure and high temperature intra-domain.about the material of the seat ,we can choose graphite ,PTFE or other stainless steel.

Features for eccentric butterfly valve

Design standard as per: API 609, ASME B16.34, GB/T12238, JB/T 8527.

Small installation space, light weight, and maintenance friendly;

Good sealing effect and long service life;

Simple structure and small opening/closing torque;

Good flow adjusting ability, high precision of flow characteristic curve and good dynamic adjustment stability;

For soft seat the leakage rate: ANSI B 16.104 Ⅵ.

It can used for high pressure and high temperature intra-domain.

Double eccentric butterfly valve

inch	L		L1		D		D1		D2		H2		H1		H		M	Z-d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	M	Z-d
2"	1.72	43	4.25	108	6.00	152	4.75	120.5	3.62	92	4.33	110	11.02	280	13.58	345	M18	4-19
3"	1.93	49	4.50	114	7.50	190	6.00	152.5	5.00	127	4.92	125	12.40	315	14.96	380	M18	4-19
4"	2.20	56	5.00	127	9.00	229	7.50	190.5	6.19	157	5.70	145	13.78	350	16.34	415	M20	8-19
5"	2.50	64	5.50	140	10.00	254	8.50	216	7.32	186	6.50	165	15.35	390	17.91	455	M20	8-22
6"	2.75	70	5.50	140	11.00	279	9.50	241.5	8.50	216	6.89	175	17.91	455	21.45	545	M20	8-22
8"	2.80	71	5.90	150	13.50	343	11.75	298.5	10.62	270	8.26	210	20.67	252	24.21	615	M24	8-22
10"	3.00	76	6.30	160	16.00	406	14.25	362	12.75	324	9.84	250	23.81	605	27.36	695	M24	12-25
12"	3.38	86	4.00	178	19.00	483	17.00	298.5	15.00	381	11.24	285	28.74	730	32.78	830	M27	12-25
14"	3.63	92	4.20	190	21.00	533	18.75	362	16.25	413	12.60	320	31.50	800	35.43	900	M27	12-29
16"	4.00	102	8.50	216	23.00	597	21.25	432	18.50	470	13.98	355	34.25	840	38.58	980	M30	16-29
18"	4.50	114	8.74	222	25.00	635	22.75	476	21.00	533	14.96	380	36.22	920	40.55	1030	M30	16-32
20"	5.00	127	9.00	229	27.50	399	25.00	540	23.00	584	16.34	415	39.37	1000	43.70	1110	M33	20-32
24"	6.06	154	10.50	267	32.00	813	29.50	578	27.25	692	18.70	475	45.51	1155	51.37	1305	M33	20-35
30"	6.50	165	11.50	292	38.75	985	36.00	635	33.75	857	22.38	580	54.13	1375	60.03	1525	M39	28-35
32"	7.50	190	12.50	318	41.75	1060	38.50	749.5	36.00	914	24.80	630	56.50	1435	62.40	1585	M39	28-41
36"	8.00	203	13.00	330	46.00	1168	42.75	914	40.25	1022	26.77	680	62.40	1585	69.48	1765	M20	32-41