Purpose - For application requiring a higher temperature/pressure rating, greater flexibility and improved kink and crush resistance. Also for applications requiring full vacuum resistance for hose sizes larger than 2".
Design - The convolutions are closer together, yielding greater radial strength to the hose design.
Specifications - As for Corroflon GP, except that the maximum working pressure for wire braided grades is increased by 25%, the weight per meter is increased by 30%, the actual through bore is reduced by 50%, the minimum bend radius is reduced by 25% and the angle of cleanability is <80º.
Available as SP (Natural) and SP, AS (Antistatic) Grades.
EC - Electrical Continuity - When EC grade is requested, it is necessary that the hose assembly supplied is electrically continuous, or conductive, between metal end fitting at each end of the hose.
The requirements for this are specified in the German Document BRG132, and the Specification EN ISO 12115, tested to EN ISO 8031 Clause 3.7, which requires that for hose assemblies with a resistance between fittings of £ 102 ohms, a letter "M" can be applied, or £ 106 ohms, a letter "O" can be applied.
Braided Corroflon Hose Assemblies all meet the requirements of both "M" and "O".
The only exception is for assemblies without braid. Grade AS,TO (Antistatic, Tube Only) meets the requirements of "O", ≤ 106 ohms, but Grade GP, TO (Natural Tube Only) does not meet either "M" or "O"