Through the pressure difference of 2-3bar between the medium pressure/working pressure in the valve body of the pinch valve (depending on the quality of the elastomer), the threaded flexible tube valve is closed. When the pressure supply is interrupted and the pinch valve body is ventilated, the threaded flexible tube valve inner bushing is fully opened due to its great resilience.
The following plastic materials can be used:
White polyoxymethylene-plastic steel
Cold-resistant and weathered black polyoxymethylene-plastic steel
Conductive POM-plastic steel
Under normal circumstances, the threaded pneumatic pinch valve adopts an internal thread connection in accordance with DIN ISO 228 standard, or NPT connection. According to customer needs, threaded flexible tube valves can also be supplied with connections required by customers.
Industrial field, possible application fields:
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