China Concentric butterfly valve supplier

Concentric butterfly valve

Material of butterfly valve: A536,A126,WCB,LCB,CF8,CF8M.CF3.CF3M,CN7M,904L

Size of butterfly valve: 1inch(DN25) - 80 inch (DN2000)

Pressure of butterfly valve: 125LB(PN6)-150LB(PN16)

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

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

Operating temperature : -100℃ - 190℃

Working medium: water, gas,oil,concrete,Sulfuric acid and hydrochloric acid

Inquiry Now

Catalogue:

butterfly valve.pdf

Introduction for concentric Butterfly Valve

Concentric Butterfly Valve use have another name is soft seal butterfly valves, the flexibility of rubber seat, could easily achieve zero leaked, their structure is very simple and opening and closing speed, therefore is a widely applied valve in oilfield, agriculture, water & waste water and mining industries. Due to its rubber lined body materials, it is usually used in low pressure lines.

Wafer type is the common style of butterfly valve and is less expensive than the lug type. The wafer butterfly valve is installed between two flanges. The valve is kept in place by using bolts or studs and nuts from flange to flange. This type of installation, of course, makes it impossible to disconnect just one side of the piping system from the valve.

Features for soft seal butterfly valve:

Center Lined, Resilient Seat

Bi-Directional Sealing

Shutoff and Throttling Operation

Wafer Body Type, Lug Type or Flanged Type

Applicable Standards

Design & Manufacture: API 609, EN 593, AWWA C504

Drawing for concentric Butterfly Valve

Concentric butterfly valve

inch	L		L1		D		D1		D2		H2		H1		H		M	n-d
inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	M	n-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