Flange Concentric Butterfly Valve

Flange concentric butterfly valve is suitable for flow regulation. Since the pressure loss of butterfly valves in the pipe is relatively large, about three times that of gate valves, when selecting butterfly valves, the impact of pressure loss on the pipeline system should be fully considered, and the strength of the butterfly plate to withstand the pressure of the pipeline medium when closed should also be considered. .

The flange concentric butterfly valve has small flow resistance when fully opened. When it is opened between about 15° and 70°, it can perform sensitive flow control. Therefore, butterfly valves are very commonly used in the field of large-diameter adjustment. Since the movement of the butterfly plate of the butterfly valve is wiping, most butterfly valves can be used in media with suspended solid particles. Depending on the strength of the seal, it can also be used for powdery and granular media.

ISO 5752, BS 5155, API 609, MSS-SP-68, ASME B16.10, ASME B16.5, DIN 3202
Materials: Cast Iron and Ductile Iron
Pressure Ratings: ANSI 150#, PN10, PN16
Size Ranges: 2" to 48"- 50mm to 1200mm (Larger sizes upon request)
Ends Connections: F.F, R.F
ptional Seatings: Resilient NBR, EPDM, VITON
ctuations: Manual, Pneumatic, Electric, Hydraulic (Counterweight) & Electro-hydraulic

Butterly Valves Size Table

DN	DN	A	B	C	D	E	F	G	H	L	Mass
mm	inch	mm	mm	mm	mm	mm	mm	mm	mm	mm	kg
150	6"	193	143	56	285	33	14	90	369	12	11.1
200	8"	225	172.5	60	345	33	17	90	430.5	12	21.2
250	10"	282.5	210	68	406	23	22	130	515.5	14	32.1
300	12"	308	243	78	480	23	22	130	574	14	48
350	14"	338.5	282.5	78	535	31	22	160	652	15	56.4
400	16"	380	308	102	597	31	27	160	719	18	83
450	18"	380.5	340	114	640	38	36	190	758.5	20	108.9
500	20"	432.5	380	127	700	38	36	210	850.5	20	144.8
600	24"	494	440	154	834	80	60	210	1014	24	223.6
700	28''	590	490	165	910	106	65	300	1186	30	277.8
750	30''	590	530	190	995	106	80	200	1226	25	366
800	32''	630	565	190	1060	106	80	300	1301	28	413
900	36''	695	610	203	1170	110	80	350	1415	32	565
1000	40''	770	675	216	1290	110	80	350	1555	32	704
1100	44''	815	733	216	1405	110	80	350	1658	32	856
1200	48''	875	818	254	1485	110	100	350	1803	40	1087
1400	56"	1000	973	280	1735	120	120	350	2093	40	1651
1600	64"	1115	1090	318	1930	160	130	475	2365	40	2132

Flange Butterfly Valves

flange valve butterfly valve

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