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Vent plug / Brass plug:
Vent plug
To keep harmful materials out of the end of road tubes during surveys.
Prevents double counting from air pulse travel.
Use with both 'O'and 'D' tube.
Use of plug types depends on make of traffic counter and type of survey undertaken.
Catalogue number: CA219
Vent plug / Brass plug:
Brass plug
To keep harmful materials out of the end of road tubes during surveys.
Prevents double counting from air pulse travel.
Use with both 'O'and 'D' tube.
Use of plug types depends on make of traffic counter and type of survey undertaken.
Catalogue number: CA218
Brass tube connector:
Tube connector
Designed to fit both 'O' and 'D' section road tube.
Used with tape to join broken or cut tube together quickly.
Avoids the cost of replacing the whole length of tube.
Catalogue number: CA220
Hose clips:
Hose clip
A secure way to hold tube ends to automatic traffic counter nozzles.
Prevents tube from being blown off the ATC nozzle or from being pulled off the
counter nozzles by vandals.
To fit 'O' tube only.
Catalogue number: CA221
Washers / Survey washers:
Survey washer
Washers to fit both 0.250" and 0.144" diameter road nails when fixing clamps onto the road surface.
Catalogue numbers:
(small nail hole) - 23mm washer CA216
(large nail hole) - 31mm washer CA217
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