บทความ เกจวัดแรงดัน

The Watson-Marlow Fluid Technology Group (WMFTG) has launched the Qdos Conveying Wave Technology (CWT) pump which extends the capabilities of peristaltic pump technology and offers longer service life than traditional tube-based designs.
Qdos CWT pumps obtain their peristaltic action by working a fluid contact factor that offers the same primary perform as the tube of a standard peristaltic pump. As well as the elimination of vapour locking, the factor delivers stable, dependable performance, even with fluctuations in ambient temperature and stress.
To obtain เกจวัดแรงดันแบบแห้ง pumping action, the CWT pump head incorporates an EPDM component rather than a tube, which acts towards a PEEK observe. The resulting fluid contact component is subjected to very low stress levels, permitting the Qdos CWT to supply a longer service life.
Qdos CWT pumps supply high levels of chemical dosing accuracy in water remedy applications. The pumps introduce chemicals, including sodium hypochlorite for post-chlorination cycles, without the need to overdose. The sealed CWT pump head delivers correct, linear and repeatable flow and could be very secure because it minimises operator publicity to chemical compounds.
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