General purpose ducts manufactured in twinwall and uPVC conforming to no specific standards are also supplied by JDP for general purpose use.
This black non Kite Marked ducting retains many of the same features and benefits as the BS EN50086-2-4 system, for applications that do not require a full BS EN specification duct. It is an ideal superior alternative to uPVC Daviduct in these applications.
Twinwall HDPE general purpose ducting conforms to no specific standards.
uPVC Type 4660
uPVC Type 4660 Duct is manufactured to the dimensional requirements of BS4660. This system offers a greater strength than uPVC General Purpose duct systems and is supplied in black / dark grey colour and as a ring sealed system as standard, although unsealed systems are available.
uPVC Type 4660 is manufactured to the dimensional requirements of BS4660.
Daviduct is a cost effective alternative to higher specification systems, for use in light and medium duty applications. The products are manufactured to traditionally accepted dimensions but do not meet the requirements of BS EN 50086-2-4:1994. General Purpose ducting is not suitable for Highways Agency applications and will require a higher standard of installation than more robust systems for successful performance.
Manufactured to traditionally accepted dimensions, but are not covered by any approvals.