Veeder-Root TLS-450, Manual

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Mag Probe Installation UST/AST Tank - Dedicated Riser
12
Figure 10. AST Probe Installation - Dedicated Riser
2. If you are installing the metal cap and adapter ring (see Figure 7 on page 10), screw the ring onto the 4” riser
until the gasket contacts the pipe, then use a pipe wrench to tighten it an additional 3/4 turn. Push the cable
through the metal cap and cord grip, then clamp the cap onto the ring.
At sites that require installation of a riser adapter (Phil-Tite M/F 4X4 or equivalent) at the top of the riser, do so
following the manufacturer’s instructions. Next screw the adapter ring from the Veeder-Root kit (
P/N
312020-
952) onto the riser adapter by hand until the gasket contacts the sealing surface. Then use a torque wrench at-
tached to an appropriate strap wrench (K-D Specialty tools nylon strap oil filter wrench, or equivalent) and tight-
en the ring to 35 - 45 ft-lbs. Loosen the cord grip nut and push the cable through the metal cap and cord grip,
then clamp the cap onto the ring (see Figure 11).
Figure 11. Installing A Riser Adapter Beneath The Metal Cap And Adapter Ring
Use bushing and body of grip
fitting supplied with probe and
Adaptor nut supplied with
AST kit.
Epoxy seal per NFPA specs
Flexible metal conduit
supplied with AST kit
Weatherproof junction box with
1/2" NPT threads (16 cubic inch
minimum)
Rigid conduit
Liquidtight
fittings from
AST kit
Mag Probe
(rests on bottom)
probes\astpbins.eps
Riser pipe: 2-, 3-, or 4'' API
schedule 40 - depending on
probe type
A
A = 10" minimum for global mag
plus/mag plus probes. When
installing a probe longer than the
the tank diameter, increase this
minimum dimension to compensate.
(Example: a 7'-6'' diameter tank will
use an 8' probe, in which case you
must add 6" to minimum riser length
'A', i.e., 16").
Split-Ring Collar
(P/N 576008-617)
required if probe
enters the riser.
Top view
Side view
3/4" ID
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T a nk
Ri s er a d a pter
(Phil-Tite M/F4X4,
or e
qu iv a lent)
Ad a pter ring from kit
Met a l c a p from kit