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Pneumatic sanitary butterfly valve

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Pneumatic sanitary butterfly valve

Valve body material: 304, 316, 316L
Valve plate material: 304, 316, 316L
Connection type: clamp type, screw type, welding type, wafer type
Flange standard: GB, ANSI, JIS, DIN
Pressure rating: PN16
Pneumatic actuator: double acting, single acting normally closed, single acting normally open
Pneumatic accessories: solenoid valve, air filter pressure reducing valve, electric positioner, hand wheel
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Pneumatic sanitary butterfly valve parts materials

Pneumatic sanitary butterfly valve is composed of pneumatic actuators and high-quality sanitary butterfly valve body. Sanitary pneumatic butterfly valve adopts standard electronic polishing, smooth surface ensures cleanliness, no medium storage area, and no potential pollution.Quick disassembly and assembly of valve, make valve open and maintenance quick and easy, shorten the process downtime.


Features:

1. Simple, small volume, light weight, small flow resistance, large flow coefficient, good sealing performance.Large adjustment range.It is the execution unit of the instrument in the automatic control system. 

2. Pneumatic actuators adopt piston type cylinder and curved arm conversion structure, with large output torque and small volume, and adopt fully sealed waterproof design with high protection level.The cylinder body adopts mirror cylinder, no oil lubrication, small friction coefficient, corrosion resistance, strong durability and reliability.All transmission bearings are self-lubricated with oil-free boundary bearings to ensure that the shaft is not damaged by friction. 

Applicable scenarios:

Pneumatic health class clamp butterfly valves are widely used in such as food, pharmaceutical, cosmetics, clean steam, alcohol, beverages, biochemical industrial process control occasions.

Pneumatic sanitary butterfly valve parts materials

Part nameMaterial
Body304、316、316L
Butterfly plate304、316、316L
Sealing ringSilicone rubber, fluorine rubber, teflon
Valve stem304、316、316L
PackingSilicone rubber, fluorine rubber, teflon

Technical parameters of pneumatic sanitary butterfly valve

Range of motion
DN506580100125150200250300350400
0~90°
△PLess than nominal pressure(1.6MPa)
LeakageQAccording to GB / t4213-92, it is 10-4 of Kv value
Environment temperature℃-20~60℃
Basic errorWith positioner: less than ± 2% of the full stroke
Return errorWith positioner: less than ± 2% of the full stroke
Equipped with actuatorPi-tork, BTS series single and double acting pneumatic actuators
Control modeSwitch two position control, 4-20mA analog signal control

Pneumatic sanitary butterfly valve actuator parameters

Actuator typeSingle and double acting pneumatic actuator
Gas supply pressure0.4~0.7MPa
Air interfaceG1/4"、G1/8"、G3/8"、G1/2"
Environment temperature-30~+70℃
Role formSingle-acting actuator: gas-off type (B)-- valve position opens (FO) when gas is lost;Gas open type (K)-- valve position close (FC) when gas is lostDouble-acting actuators: gas-off type (B)-- valve position remains (FL) when air is lost;Open air (K)-- valve position remains (FL) when the air is lost
Can match the attachmentPositioner, solenoid valve, air filter unloader, position holding valve, trip switch, valve position transmitter, handwheel mechanism, etc

Adopt new series pneumatic actuators, double-acting and single-acting (spring return), rack and pinion drive, safe and reliable;The large diameter valve adopts series G type pneumatic actuator pull-fork drive, with reasonable structure and large output torque, double-acting and single-acting.

1. Gear type double piston, large output torque and small volume.

2. The cylinder is made of aluminum and gold with light weight and beautiful appearance.

3. Manual operation mechanism can be installed at the top and bottom.

4, rack connection can adjust the opening Angle, rated flow.

5. The actuator can choose live signal feedback instructions and various accessories to realize automatic operation.

6. IS05211 standard connection provides convenience for product installation and replacement.

7. Adjustable pitch screws at both ends enable standard products to have an adjustable range of ±4° at 0° and 90°.Ensure synchronization accuracy with valve.

Specification for performance of pneumatic sanitary butterfly valves

Suitable temperature
Nominal diameterDN(mm)15~150
Nominal pressurePN(MPa)0.61.01.6
Test pressureStrength test0.91.52.4
Sealing test0.661.11.76
Gas seal test0.60.60.6
≤80℃
Applicable mediumAir, water, steam, oil, etc
Connection formClamp type, screw type, welding type, pair type


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