FIRE/IMPACT VALVE ANCHORS
IMPROPER ELECTRICAL INSTALLATIONS
Tied for the ;rst place in the top 10 list of most
common violations are incorrect ;re/impact valve anchors
and improper electrical installation of dispensers.
Fire/Impact Valve Anchors. Fire/impact valve anchors
are critical for proper operation of the ;re/impact valve
if a dispenser is impacted or involved in a ;re. The shear
section of a ;re/impact valve must be within one-half
inch of the island base. If the valve is installed too high
or too low, the leverage exerted on the dispenser piping
can often fall above or below the shear point, resulting in
a failure to close.
If an ignition source is present, as is often the case
when a pump is struck by a vehicle, a major ;re can result.
Anchor brackets used to secure the ;re/impact valve are
attached by bolting a cross-member in the dispenser sump.
This bracket is then attached to the valve with a U-bolt.
The bolts and fasteners tend to loosen over time due to
the vibration of the system, causing the U-bolt to drop
below the designated anchor area. When operators are
Pumps dispensing gasoline products require a minimum 10-micron ;lter. Very often, however, ;lters are
replaced with whatever is on hand, which usually is a
30-micron pore size or larger. This leads to the third-most-common violation: improper dispenser ;lters. When cited,
the operator usually changes the ;lter while the inspection
is taking place so there is no need for a follow-up visit.
A missing or faded product sign may seem unimportant, but failure to properly identify the product at each
;ll connection can be one of the most serious violations.
Because common carriers of motor fuel are unfamiliar with
many of the facilities where they make deliveries, they must
rely on proper product signs to deliver the right product to
the right storage tank.
Improper or missing product identi;cation can lead
to dangerous over;lls or product contamination. Liquid
or vapors over;owing from the vents have the potential to
ignite the engine on the transport vehicle. Accidentally
pumping gasoline into diesel tanks can lower the ;ashpoint,
causing a very unstable product if the liquids are mixed at
the right ratio. Either situation is very dangerous. Operators
almost always correct this violation during the inspection.
Non-legible product identi;cation.
Incorrect ;re/impact valve anchor. U-bolt below the valve body
and anchor points contacting smooth steel island insert.
Left: Dispenser wiring not in explosion-proof conduit and missing
bolt in junction box; Right: Plugs missing from explosion-proof
junction box and abandoned conduit.
#3 IMPROPER FILTERS
#2 FADED PRODUCT IDENTIFICATION ON FILL CONNECTIONS AND DISPENSERS
FIRE/IMPA T VALVE ANCHORS TIE! #1