Application

This type of butterfly valve series is a kind of sanitary valve which used to control the material transfer. It is widely used in food, beverage, pharmaceutical and chemical industry area.

Work principle

Pneumatic butterfly valve is operated remotely by actuator.

Actuator is to cover the axial movement of piston to be 90℃ rotation of valve shaft. So that the valve can be open or close to achieve the requirement of control and open/close for the pipeline system. They have three type of actuator: normally open (NO), normally closed (NC), air/air (A/A).

Specification

Specification：3/4"-4",DN20-DN100
Working pressure：0～4.5bar, control air pressure: 5～8bar

Working temperature：VMQ (-10℃～+120℃)

Connection：clamp, weld, thread, flange

Connection standard： ISO，DIN，IDF，SMS，3A，etc 

Diaphragm material：SILICON/VMQ is standard

                                    EPDM，FDM are optional

Contact with the products: 304/ 316L

Non-contact with the products: 304

Internal surface：Ra≤0.4～0.8μm

External surface：Ra≤0.8～1.6μm

Operation mode: pneumatic