CPC F16L 21/06 (2013.01) [E02D 17/00 (2013.01); E02F 3/90 (2013.01); E02F 5/003 (2013.01); F16L 9/12 (2013.01)] | 16 Claims |
1. A hydrovac vehicle or a flusher truck, comprising:
a vacuum system mounted on the hydrovac vehicle or flusher truck; and
a vacuum tube in fluid connection with the vacuum system;
the vacuum tube further comprising a tube part comprising:
a female fitting comprising an end that includes an upset for receiving a male fitting, the upset having an outer circumference and an inwardly extending groove extending around the outer circumference for receiving a clamp or portion of a clamp and the upset having an end face and inner surface, the upset having an undercut between the end face and inner surface for receiving a flange of the male fitting, and
the tube part being made from high density polyethylene having a density in the range of 0.93 to 0.97 g/cm3.
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