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Pneumatic butterfly valve

Sanitary clamp pneumatic butterfly valve

Body material	SS304,SS316,SS316L
Disc material	SS304,SS316,SS316L
Seal mateiral	Silicon rubber
Nominal pressure	PN10KG,PN16KG
Structure type	Midline
Control type	Single acting, double acting
Air supply	3-8bar
Pneumatic accessory	Solenoid valve, limit switch box, positioner, handle wheel, etc

Product parametersSize chartworking principle

Sanitary clamp pneumatic butterfly valve

Pneumatic sanitary butterfly valve, adopt standard electronic polishing treatment,

smooth surface ensure the clean, no medium stockpile area, won’t produce potential

pollution. Quick disassembling valve, the valve open and maintenance is easy, shortening process downtime. Widely used in such as food, medicine, cosmetics, clean steam, beverage, alcohol, biochemical industry process control occasions. Has the advantage of compact structure, convenient installation.

Standard technical parameters

Body

Nominal size: Clamp: Φ20-Φ219

Wafer: DN25-300mm

Body material: 304, 316, 316L

Connection type: Clamp, external thread, welding, wafer type

Pressure class: PN1.0MPa, PN1.6MPa

Structure type: Midline type

Valve components

Seat sealing: Silicone rubber, VITON, PTFE

Silicone rubber: -30~100℃

PTFE: -30℃～150℃

VITON: -30~150℃

Disc material: 304, 316, 316L

Stem material: 304

Applicable medium: Food, drinks, pharmaceutical, dairy products, beer, and fine chemical industry, packaging machinery, canned machinery.

Design and manufacturing standards

Design and manufacture: ISO, DIN, IDF, SMS, 3A

Connection standard: JB/T 79.1-1994

Face to face dimension: GB/T 12221-2005

Pressure testing: GB/T13927-2008

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.
ON-OFF type	Feedback: the active signal, passive contact signal, resistance, 4-20mA
Regulation type	Input and output signal: 4-20mA, 0-10v, 1-5v, switch, MODBUS, PROFIBUS field bus
Filed operation	The field, remote control switch regulation and MODBUS, PROFIBUS field bus

Outline size drawing:

Type specification table:

ISO	d	D	L	H	A	P
Φ25	21	50.5	66	72	163	96
Φ32	29	50.5	66	72	163	96
Φ38	35	50.5	70	75	163	96
Φ51	47	64	76	94	163	96
Φ63	59	77.5	98	95	195	115
Φ76	72	91	98	95	195	115
Φ89	80	106	102	95	217	137
Φ102	97	119	106	96	217	137
Φ108	102	119	106	96	258	147
Φ133	125	145	140	108	258	147
Φ159	150	172	260	140	299	165

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.