Pneumatic sanitary butterfly valve
Pneumatic sanitary butterfly valve
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
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 name | Material |
|---|---|
| Body | 304、316、316L |
| Butterfly plate | 304、316、316L |
| Sealing ring | Silicone rubber, fluorine rubber, teflon |
| Valve stem | 304、316、316L |
| Packing | Silicone rubber, fluorine rubber, teflon |
Technical parameters of pneumatic sanitary butterfly valve
Range of motion| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0～90° | |||||||||||
| △P | Less than nominal pressure（1.6MPa） | ||||||||||
| LeakageQ | According to GB / t4213-92, it is 10-4 of Kv value | ||||||||||
| Environment temperature℃ | －20～60℃ | ||||||||||
| Basic error | With positioner: less than ± 2% of the full stroke | ||||||||||
| Return error | With positioner: less than ± 2% of the full stroke | ||||||||||
| Equipped with actuator | Pi-tork, BTS series single and double acting pneumatic actuators | ||||||||||
| Control mode | Switch two position control, 4-20mA analog signal control | ||||||||||
Pneumatic sanitary butterfly valve actuator parameters
| Actuator type | Single and double acting pneumatic actuator |
|---|---|
| Gas supply pressure | 0.4～0.7MPa |
| Air interface | G1/4"、G1/8"、G3/8"、G1/2" |
| Environment temperature | -30～+70℃ |
| Role form | Single-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 attachment | Positioner, 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 diameter | DN（mm） | 15～150 | ||
|---|---|---|---|---|
| Nominal pressure | PN（MPa） | 0.6 | 1.0 | 1.6 |
| Test pressure | Strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| Gas seal test | 0.6 | 0.6 | 0.6 | |
| ≤80℃ | ||||
| Applicable medium | Air, water, steam, oil, etc | |||
| Connection form | Clamp type, screw type, welding type, pair type | |||
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