advantageous for the blowing in length > R 2.5 m < R 1 m to be avoided: negative impact on the blowing in length gabo Systemtechnik speed•pipe® bundle ground Laying instructions SRV-G und SRV-G tc 10 The smallest permissible bending radius of the speed•pipe® bundle depends on the laying temperature and never must fall below the values specified in the table. Laying temperature Smallest permissible bending radius of the speed•pipe® bundle 20 °C > 1.0 m 10 °C > 2.0 m 0 °C > 2.5 m The minimum bending radius for speed•pipe® ground as an single duct are 10 x outer diameter, e. g. speed•pipe® ground 7 x 1.5 = minimum bending radius 10 x 7 mm = 70 mm. Note: Avoid connectors in a bending radius, as they can stop the blowing in process because of the internal edge of the open middle plot. Avoid bending radius < 2.5 m. Recommendation The larger the bending radius, the larger the blowing in values afterwards! Gently compensate any height difference of the trench bottom. Any rapid height difference will cause a negative impact on the blowing in success. Important 6. Bending radius.
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