亚洲在线播放_日韩午夜激情_国产精品丝袜xxxxxxx_亚洲欧美影院_亚洲精品一级_欧美在线播放一区二区_久久aⅴ乱码一区二区三区_雨宫琴音一区二区在线_亚洲综合精品_国产精品老牛

application

  This type of reversing valve is used in the material flow switching of equipment pipelines, and is widely used in food, brewing, beverage, dairy products, toothpaste cosmetics, bio-pharmaceutical and other industries.

Technical Parameters

◆Specifications: 1"~4" DN25~DN100

◆Connection method: welding, clamp, thread, flange

◆Maximum working pressure: ≤10bar

◆ Supply compressed air: 4-8bar

◆Compressed air connection: air pipe joint G1/8"

◆Proximity switch: 6-36V DC 2 NPN or PNP (optional)

◆Input power: 24V DC

◆Working temperature: -10 ° C to 120 ° C

◆Contact with material: SS304/SS316L

◆Internal surface contact product: Ra≤0.8μm

◆Sealing: EPDM, Silicone Rubber (SI), Fluororubber (FPM)

working principle

Connect to the 24V DC power supply, the circuit board, the proximity switch is energized, and the input signal opens the solenoid valve to allow the air source to enter the cylinder. The compressed air is used to push the piston in the pneumatic actuator up, the piston rod and the valve stem are connected by the positioning card, and the piston rod is moved upward when the air compression pushes the piston in the pneumatic actuator to move up, so that the valve seat is lifted. The sealing surface is pressed against the sealing surface of the valve body, that is, the upper valve port is closed. When the air compression is lower than the spring force or no gas compression, the piston is pushed by the spring under the action of the spring, and the valve stem is moved downward to close the lower valve port. It is mainly used for fluid switching in the pipeline system, and is switched in one way and two ways, and is applied to the piping system without pollution or mixing.