|Industrial process control can be confronted with|
hazardous, corrosive, or other fluids containing
Most industrial valves consist of a body, a stem, and some form of flow obstruction which is located within the media flow path. Operation of the stem repositions the obstruction to allow or block the flow. All of these valve types have a defined sealing surface where the obstruction contacts the body. They also have additional seals where the stem penetrates the body. These design features, while providing certain functions and application advantages, also add to the operational complexity and parts count for the valve.
There is a valve type with a simple operating principle that provides superior performance when the application involves certain media characteristics. It is called a pinch valve, and here is where it excels.
- Resistance to abrasion and corrosion from slurries or fluids containing suspended solids and the ability to provide tight shutoff around particulates
- Media and environmental temperature range -40 deg F to +300 deg F
- Low to moderate operating pressure
- Flow regulating capability and tight shutoff
- Non clogging
- Straight through full bore design with minimal flow resistance
- Isolation of the valve body and workings from the media
- Low parts count, low maintenance, easy repair/replacement
|Cutaway view of manually|
operated industrial pinch valve