Emco A1100EVR GUARDIAN Installation Instructions Manual

A1100EVR GUARDIAN

OVERFILL PREVENTION VALVE

WITH THREADED BOTTOM

INSTALLATION INSTRUCTIONS

Permanent Identification:

(1) Collar #566679 with: (1) Tube, Seals-All Sealant #566726

(1) O-ring #480049 installed (1) Counter Sink Indenter #564416
(1) Drop Tube O-ring #569461 installed (4) Rivets #564412

(1) Warning Plate #564420 (1) Hose Clamp #564421

Packing List:

Month/Year
of Manufacture

CAUTION:

1. Always barricade to keep pedestrians and vehicles from accessing the
storage tank area during preventive maintenance and/ or compliance testing
of the EMCO phase I EVR system.

2. If the underground storage tank is equipped with a ball float vent valve, make
sure it does not extend below the positive shut-off point of the A1100EVR
overfill prevention valve. If so, the ball float valve must be removed to allow
proper operation of the A1100EVR overfill prevention valve.

3. Never disconnect the delivery elbow from the fill adapter when the
A1100EVR overfill prevention valve has reached the positive shut-off point of
95% total capacity. Note the tank delivery hose is full and must not be dis­connected until enough fuel has been evacuated from the underground stor­age tank. This will allow the tank delivery hose to drain, and to safely discon­nect from the fill adapter. Premature disconnection will result in a hazardous
spill and/or a potential for personal injury and property damage.

4. Once the A1100EVR overfill prevention valve is completely assembled, the

Seals-All Sealant must cure for a minimum of 24 hours before installing
into the underground storage tank.

• 13/64” Drill Bit • Hacksaw w/ fine tooth • Pipe Thread Sealant Compound

• Rivet Gun • Hand file w/ fine blade • 150 Grit Size Emery Cloth

• Power Drill • Marker • De-burring Tool w/ #10 Blade

• Tape Measure • Hammer • Fabric Strap Wrench (2)

• EMCO Drill Fixture p/n 566675

Service Tool Required:

Model #

7

3

Place tape
measure here

Measurement C,
cut length

Figure 3

2. Find measurement B from the chart below, the distance from the maximum

fluid level allowed to the inside top of the tank. The calculations are based
on cylindrical tanks with flat ends. For exact dimensions, consult the manu­facturer’s tank charts. Use the actual capacity of the tank for calculations.
NFPA30 Guidelines limit tank fill to 95%.

95% Shut-off

Tank Diameter B Dimension

Feet Meters Inches mm

6.5’ 1.98 7.5" 190

7.0’ 2.13 8.0" 203

7.6’ 2.29 9.0" 229

8.0’ 2.44 9.5" 241

8.2’ 2.50 9.5" 241

8.5’ 2.59 10.0" 254

9.0’ 2.74 10.5" 267

9.5’ 2.90 11.0" 279

10.0’ 3.05 11.5" 292

12.0’ 3.66 14.0" 336

IMPORTANT: The A1100EVR overfill prevention valve is not recommended
for tanks under 6.5 feet in diameter.

3. Top Tube Cut Location, Measurement C: Add measurements A and B.

Place tape measure at the 95% fill mark on the valve and measure up the
tube as shown. Mark and cut the tube at the C measurement length.

Example: Top drop tube cut length, C = A + B

5

14. Once finished with steps 11 through 13, clean and remove all excess
sealant around the top of the A1100EVR collar and rivets.

IMPORTANT: The Seal-All sealant must cure for a minimum of 24 hours
before installing into the underground storage tank.

5

10. Apply a 1/2 inch bead of Seals­All Sealant around the 480049 o-ring
and outside area of the A1100EVR
collar. Verify the o-ring is properly
secured inside the machined groove.
Do not apply sealant to the 569461
drop tube o-ring.

11. Slide the A1100EVR collar inside

the top end of the drop tube and align
the four holes.

12. Using the indenter tool and a
hammer, apply a sharp blow to
counter sink each individual hole
before attempting to install the
mounting rivets.

13. Using only the factory supplied
rivets, apply a good amount of the
Seals-All Sealant around the base of
each rivet before installing into each of
the four holes. Using the rivet gun,
permanently fasten the A1100EVR
collar to the top of the drop tube.

A1100EVR Collar to Top Drop Tube

9. Remove the o-ring (p/n 480049)

from the A1100EVR collar groove.
Lightly sand the outside area using
150-grit emery cloth. Clean and
remove any sanding debris.
Re-install o-ring.

569461

480049

Place tape measure at the end of the top tube
(riser collar) and measure down to distance E.
Carefully cut the drop tube to the required
length. Use a hacksaw equipped with a fine
tooth blade to ensure a straight 90-degree cut.

An angled cut is permissable, but the 4”-6” dis­tance from the bottom of the tank must corre­spond to the top of the cut as shown.

Spill
Containment

Tape Measure

Riser Pipe

Figure 4

ED

20. Remove all metal chips or debris left from cutting or drilling. Shake the

A1100EVR overfill prevention valve in a vertical position. Verify that the
A1100EVR drop tube o-ring is installed properly. Locate the A1100EVR
overfill prevention valve over the tank fill riser opening with the A1100EVR
collar pointing upward. Carefully lower the A1100EVR overfill prevention
valve into the tank until the A1100EVR collar is resting on the riser pipe.

21. Install warning plate on the riser using the hose clamp provided.

7

19. Bottom Tube Cut Location, Measurement E:

Find measurement D, the distance between the
top of the riser pipe and the bottom of the tank
as shown in Figure 3.
PEI Recommended Practice suggests 4”-6”.

Cut Length E = D - 5”

A1100EVR Overfill Prevention Valve to Tank Fill Riser

Top of
angled cut

Bottom of
tank

4”-6”

4”-6”

IMPORTANT: Do not use a power saw, pipe or tubing cutter as this may
result in damage to the bottom of the lower drop tube, voiding warranty.