Wednesday, December 2, 2015

Maximizing Hose Assembly Service Life

Maximum hose assembly service life can be attained by following the recommendations shown below. 

Fluid CompatibilityThe complete hydraulic assembly (tube, cover, reinforcement and couplings) must be fluid compatible. Phosphate ester and petroleum-based hydraulic fluids have drastically different chemical characteristics therefore it is important that the correct hose must be used. Hoses are compatible with many, but not all fluids. Gates G2XH and C5D hoses are unique because they are capable of handling both phosphate ester and petroleum-based hydraulic fluids.

Minimum Bend RadiusDo not bend or flex hose to a Bend Radius smaller than the recommended minimum Bend Radius or subject the hose to tension or torque. These can place excessive stress on the reinforcement and severely reduce the ability of the hose to withstand pressure.

Hose SizeThe hose size (inside diameter) must be adequate to keep pressure loss to a minimum or required flow volume. Inside diameter that is too small for a given volume of flow results in excessive fluid turbulence, pressure drop, heat generation and tube damage. It is generally a best practice not to exceed16 feet per second fluid velocity in a hydraulic system. Using a larger I.D. hose will lower fluid velocity.

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