PREVENTIVE MAINTENANCE
1. Annually, conduct a visual inspection of the flapper valve located inside the
A1100EVR overfill prevention valve. Begin by removing the spill containment
lid and fill adapter cap. Looking down over the tank fill riser opening, verify
that the flapper valve is open and free of any foreign objects that can block
or restrict the flow of gasoline into the underground storage tank during a fuel
delivery.
2. Annually, verify leak tightness integrity of the A1100EVR overfill prevention
valve by performing ARB test procedure TP-201.1D.
3. If the A1100EVR overfill prevention valve fails to pass the leak tightness
integrity test, replace the drop tube o-ring with the EMCO o-ring kit p/n
569461.
PERFORMANCE SPECIFICATIONS
This component was factory tested to, and met, the following specifications.
1. TP-201.1D - Meets or exceeds the allowable maximum leakrate of 0.17 CFH
@ 2.00 inches of water.
IMPORTANT: Leave these installation instructions, product warranty
registration card and the warranty tag with the station owner and/or
operator.
p/n 568415
Rev. Z, 03/17
Emco Wheaton Retail Corp.
2300 Industrial Park Dr. • Wilson, NC 27893
252-243-0150 • 252-243-4759 (fax)
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 dis-
connected until enough fuel has been evacuated from the underground stor-
age tank. This will allow the tank delivery hose to drain, and to safely discon-
nect 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 #
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