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The hose is the heart and soul of a peristaltic pump. The successful use of hose pumps in a number of industrial fields led VERDERFLEX to develop a hose with a special construction. Hoses in some peristaltic pumps could fail due to fatigue between the rubber layers and the rein force ment. However, VERDERFLEX successfully developed a hose designed to postpone fatigue within its construction, resulting in extremely long service life of the hose. Internal diameter of the hose and rotor speed determine the flow rate of the pump. Hose wall thickness compared to its diameter and the number of reinforcement layers are responsible for the restoration forces of the hose after compression and creates a virtual vacuum in the hose. The construction of the textile reinforcement allows a discharge pressure of the pump of 230 PSI/ 16 bar for all pump types.
Some industrial hoses in today’s market have machined exteriors, a process generally employed by others to achieve an equal wall thickness. In comparison, the unique VERDERFLEX production process is so precise that the exact wall thickness tolerance is maintained at each and every point. For this reason VERDERFLEX hoses do not have to undergo this additional process of external machining. Thus, when VERDERFLEX hoses are tested alongside
their competitors, results indicate that there is no additional friction loss due to the wound surface, but that the VERDERFLEX hose remains homogeneous and has no other surface area liable to contamination. All VERDERFLEX hoses have a color lettering on the exterior which indicates the type of hose. The VERDERFLEX lettering is white for a NR hose, in yellow for a NBR and in red for a EPDM hose type.
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