TLS-IB Site Prep Manual
Tank Lid Access Chambers
7
.
Figure 2. Typical Tank Lid Access Chamber Installation
IMPORTANT! To allow adequate space for probe installation and servicing, it is recommended that the access chamber
is a minimum 750 mm deep and 600 mm wide at the base (see Figure 3 on page 7).
Veeder–Root are able to make special provision for tank lid access chambers of restricted depth. Contact your Veeder–
Root Account Administrator at the address given on page 4.
PROVISION FOR PROBE RISERS
A dedicated Probe tapping of either 2-inch BSP, 3-inch BSP (preferred) or 4-inch BSP must be provided. For maximum
height–to–volume accuracy, the probe socket must be as close as possible to the longitudinal axis of the tank.
IMPORTANT! The probe entry must not be obstructed by other pipe work. A free area above the probe socket of at least
100 mm radius from its centre must be provided. For Level 2 Installations probe entry plugs must be loosened and
readily removable. Failure to provide sufficient access or to loosen plugs will cause delays in system installation and
could result in additional charges.
Figure 3. Tank Lid Access Chamber — Critical Dimensions
Veeder-Root
Riser Assembly
Mag Probe
Foam Plug
Dedicating Ducting
Probe Cable
to TLS-IB
uk\tls\tnklidnt.eps
Veeder-Root
Probe Riser
Assembly
Min. 100 mm dia.
Rigid PVC Ducting
Sealed for min. 300 mm
100 mm rad.
min. clear
Minimum 600 mm
Bottom of tank lid
Bottom of tank lid
Minim
um 750 mm
uk\tls\tklddmnt.eps