Flange powder pneumatic butterfly valve

Body material	Aluminum alloy
Disc material	Carbon steel surface wear-resisting polymer materials
Seat material	NBR
Nominal pressure	PN10KG
Flange standard	GB
Control type	Single acting, double acting
Air supply	3-8bar
Pneumatic accessory	Solenoid valve, limit switch box, positioner, handle wheel, etc

Product parametersSize and dataActuator working principle

Flange powder pneumatic butterfly valve

Pneumatic powder butterfly valve was for powder /particle materials of industrial products, butterfly plate lined with wear-resisting molecular materials which used with wear-resisting

seals, suitable for gravity blanking and gas conveying of powder / powder materials handling systems, installed in the hopper, silos, screw conveyor outlet.

Technical parameters

Body

Nominal size: DN100-DN400mm

Body material: Die-casting aluminum alloy

Connection type: Double flange, single flange

(With extended connecting ring to soft casing)

Pressure class: PN1.0MPa

Structure type: Midline type

Valve components

Seat sealing: NBR wear resistant rubber

Disc material: Carbon steel surface wear-resisting polymer materials

Stem material: SS410

Applicable medium: Powder, particulate materials, cement mixing station, hopper, etc.

Actuators

Pneumatic actuator
Control type	Function
Double acting	Failure to maintain
Single acting normally closed	Failure to close
Single acting normally open	Failure to open
Optional accessory	Solenoid valve, limit switch box, air filter relief pressure valve, positioner, manual device.

Pneumatic powder butterfly valve

Outline size drawing

Single flange size

DN	A	B	C	D	E	F	G	H	N	P	R	a	S	T	U	V	Z	Kg
DN100	95	180	220	105	250	115	35	22×19	4×14	4×20	220	22°30	40	80	M12	50	M10	4
DN150	150	200	228	163	290	115	35	22×19	4×14	4×20	228	22°30	40	80	M12	50	M10	5
DN200	200	250	278	213	340	115	35	22×19	4×14	4×20	278	22°30	40	80	M12	50	M10	6.5
DN250	250	300	328	263	390	115	35	22×19	8×14	8×20	325	11°15	40	80	M12	50	M10	7.5
DN300	300	350	378	313	440	115	35	22×19	8×14	16×20	375	5°41	40	80	M12	50	M10	9
DN350	350	400	440	363	530	123	50	28×25	8×14	16×20	440	10°	40	80	M12	-	-	16
DN400	400	470	530	413	580	123	50	28×25	8×14	16×20	530	4°30	40	80	M12	-	-	20.5

Double flanged size data

DN	A	B	C	E	F	G	H	N	P	R	a	T	U	V	Z	Kg
DN100	95	180	220	250	77	35	22×19	4×14	4×20	220	22°30	80	M12	50	M10	4
DN150	150	200	228	290	77	35	22×19	4×14	4×20	228	22°30	80	M12	50	M10	5
DN200	200	250	278	340	77	35	22×19	4×14	4×20	278	22°30	80	M12	50	M10	6.5
DN250	250	300	328	390	77	35	22×19	8×14	8×20	325	11°15	80	M12	50	M10	7.5
DN300	300	350	378	440	77	35	22×19	8×14	16×20	375	5°41	80	M12	50	M10	9
DN350	350	400	440	530	85	50	28×25	8×14	16×20	440	10°	80	M12	-	-	16
DN400	400	470	530	580	85	50	28×25	8×14	16×20	530	4°30	80	M12	-	-	20.5

Pneumatic actuator working principle

Double acting (POADA):

(Counterclockwise)

Compressed air to Port 2 forces the pistons outwards, causing the output shaft to turn

counterclockwise, while the air is being exhausted from Port 4.

(Clockwise) Air to Port 4 forces the pistons inwards, causing the pinion to turn clockwise

while the air is being exhausted from Port 2.

Single acting (POASR):

(Counterclockwise)

Compressed air to Port 2 forces the pistons outwards, causing the springs to compress,

the pinion counterclockwise while air is being exhausted from Port 4.

(Clockwise)

Loss of air pressure, the stored energy in the springs forces the pistons inwards,

the pinion turns clockwise, while air is being exhausted from Port 4.