Product Details

D641X Flanged type Pneumatic on/off Butterfly Valve Brief Introduction.

This type of on/off butterfly valve is composed of pneumatic actuators and soft seal central lined butterfly valve,driven by the actuator,the disc can roll 90 in the valve body,therefore realize the full open or close of valve,can be widely applied in petro-chemical industry,light industry and other industrial sectors.

Field of Application.

Product Name: D641X Flanged type Pneumatic on/off Butterfly Valve.
Pressure Rating: 1.0-1.6 Mpa.
Nominal Diameter: DN40-1000 mm.
Body Material: Ductile Iron,Steel WCB,304,316.
Standard flanges: DIN, ANSI, JIS.

Main Technical Parameters and Indexes of Performance.

Valve Structure	Central line type
Pneumatic Actuator	Double acting
	Single acting normally closed
	Single acting normally open
Optional accessory	Solenoid valve,limit switch,pressure regulator,positioner,manual device.

Material of Main Component.

Name of component	Material of component
Body	Ductile Iron,Steel WCB,304,316
Stem	2Cr13,304,316
Disc	Ductile iron nickel plating, nylon coating, aluminum bronze, 304, 316 316L, 1.452, 2507
Seat	NBR,EPDM

Main External Dimensions.

DN	H	L	D1	A	B	C
50	120	108	125	163	96	76
65	130	112	145	195	115	91
80	145	114	160	195	115	91
100	156	127	180	217	137	11
125	170	140	210	258	147	122
150	188	140	240	299	165	136
200	205	152	295	349	182	153
250	235	165	350/355	397	199	173
300	280	178	400/410	473	221	192
350	330	190	460/470	560	249	213
400	320	216	515/525	601	280	243
450	400	222	565/585	738	383	356
500	500	229	620/650	738	383	356