Description

Double Acting EPDM NBR Seat Flanged Butterfly Valve

Double Acting Butterfly Valve Standard

Outline Dimensions
SIZE	A	B	D	L	ISO5211	D3	D4	n-d1	L2	HXH
2″	80	110	52.9	108	F07	90	70	4_ 10	14	11*11
2.5″	82	137	64.5	112	F07	90	70	4_ 10	14	11*11
3″	98	146	78.8	114	F07	90	70	4_ 10	14	11*11
4″	115	155	104	127	F07	90	70	4_ 10	14	11*11
5″	115	171	123.3	140	F07	90	70	4_ 10	17	14*14
6″	142	182	155.6	140	F07	90	70	4_ 10	17	14*14
8″	176	212	202.5	152	F10	125	102	4_ 12	22	17*17
10″	210	250	250.5	165	F10	125	102	4_ 12	22	22*22
12″	242	278	301.5	178	F10	125	102	4_ 12	22	22*22
14″	254	313	333.3	190	F10	125	102	4_ 12	22	22*22
Connection Dimensions
	Outer Diameter Of Flange				Diameter of center Circle				Number & Diameter of Bolt Holes
DN	150LB	PN10	PN16	JIS10K	150LB	PN10	PN16	JIS10K	150LB	PN10	PN16	JIS10K
DN50	150	165	165	155	120.7	125	125	120	4_ 19	4_ 19	4_ 19	4_ 19
DN65	180	185	185	175	139.7	145	145	140	4_ 19	4_ 19	4_ 19	4_ 19
DN80	190	200	200	185	152.4	160	160	150	4_ 19	8_ 19	8_ 19	8_ 19
DN100	230	220	220	210	190.5	180	180	175	8_ 19	8_ 19	8_ 19	8_ 19
DN125	255	250	250	250	215.9	210	210	210	8_ 22	8_ 19	8_ 19	8_ 23
DN150	280	285	285	280	241.3	240	240	240	8_ 22	8_ 23	8_ 23	8_ 23
DN200	345	340	340	330	298.5	295	295	290	8_ 22	8_ 23	8_ 23	8_ 23
DN250	405	395	405	400	362	350	355	355	12_ 26	12_ 23	12_ 28	12_ 25
DN300	485	445	460	445	431.8	400	410	400	12_ 26	12_ 23	12_ 28	12_ 25

The feature of Double acting butterfly valve
1. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Flow curve tending to straight line. Excellent regulation performance.
4. Long service life. Standing the test of thousands opening/closing operation.
5. Wide selection of materials, applicable for various media.

Double acting butterfly valveApplication:

1. These products are mainly used for pipeline flow, pressure and temperature control of various industrial automation productiong, for example: Electricity, petrifaction, metallurgy, environmental protection, energy management, fir-fighting systems.
2. Simultaneously they have good fluid control properties, and can operate simply.
3. They are not only widely used in general industries as petroleum, coal gas, chemical engineering, water treatment, but also used in the cooling water system of thermal power plant