Page 202 - Trenchless Technology Piping Installation and Inspection

166 Cha pte r F o u r

FIGURE 4.29 HDPE pipe readied for pullback in a directional bore.

Standard Available Diameters PE 4710 PE 3608
AWWA C901-08 ½–3 in. Available Available
AWWA C906-07 4–63 in. Standard Available
pending
ASTM D3035-08 ½–24 in. Available Available
ASTM F714-08 3–63 in. Available Available

TABLE 4.13 Solid Wall HDPE Pipe Standards for Trenchless Technology

do not detrimentally affect short- or long-term performance. Table 4.13
presents solid wall HDPE pipe standard for trenchless installations.
Joints
Butt-fusion of PE pipe is performed using commercially available
fusion machines and performed in accordance with ASTM F2620,
“Heat Fusion Joining of Polyethylene Pipe and Fittings.” The steps
involve preparing ends of two pieces of pipe by planning the ends
using special radial blades, heating the ends with a heat plate
(after which the heat plate is removed), and finally fusing the ends
together by application of pressure. Fusion joining parameters are
specified in ASTM F2620. Both internal and external beads can be
removed prior to installation. For pressure applications, the internal