Plans 11/26/2012 2:28 PM FAX 5034931042 ECOTECH 0, ,e_k( ILI q''/2- Z 0003/0003
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CHAPTER 22
SPECIAL PIPING AND STORAGE SYSTEMS
SECTION M2202
SECTION M2201
OIL PIPING,FITTING AND CONNECTIONS
OIL TANKS
M2202.1 Materials.Piping shall consist of steel pipe,copper
M2201.1 Materials.Supply tanks shall be listed and labeled tubing or steel tubing conforming to ASTM A 539.Aluminum
and shall conform to UL 58 for underground tanks and UL 80 tubing shall not be used between the fuel-oil tank and the
for indoor tanks. burner units.
M2201.2 Above-ground tanks.The maximum amount of fuel M2202.2 Joints and fittings.Piping shall be connected with
oil stored above ground or inside of a building shall be 660 gal- standard fittings compatible with the piping material.Cast iron
lons (2498 L). The supply tank shall be supported on rigid fittings shall not be used for oil piping.Unions requiring gas-
noncombustible supports to prevent settling or shifting. kets or packings, right or left couplings, and sweat fittings
Exception:The storage of fuel oil,used for space or water employing solder having a melting point less than 1,000°F
heating, above ground or inside buildings in quantities (538°C)shall not be used for oil piping. Threaded joints and
exceeding 660 gallons (2498 L) shall comply with NFPA connections shall be made tight with a lubricant or pipe thread
31. compound.
M2201.2.1 Tanks within buildings. Supply tanks for use M2202.3 Flexible connectors.Flexible metallic hoses shall be
inside of buildings shall be of such size and shape to permit listed and labeled in accordance with UL 536 and shall be
installation and removal from dwellings as whole units. installed in accordance with their listing and labeling and the
Supply tanks larger than 10 gallons(38 L) shall be placed manufacturer's installation instructions. Connectors made
not less than 5 feet(1524 mm)from any fire or flame either from combustible materials shall not be used inside of build-
within or external to any fuel-burning appliance. ings or above ground outside of buildings.
M2201.2.2 Outside above-ground tanks.Tanks installed
outside above ground shall be a minimum of 5 feet(1524
mm) from an adjoining property line. Such tanks shall be SECTION M2203
suitably protected from the weather and from physical dam- INSTALLATION
age. M2203.1 General. Piping shall be installed in a manner to
M2201.3 Underground tanks.Excavations for underground avoid placing stresses on the piping, and to accommodate
tanks shall not undermine the foundations of existing struc- expansion and contraction of the piping system.
tures.The clearance from the tank to the nearest wall of a base- M2203.2 Supply piping.Supply piping used in the installation
ment,pit or property line shall not be less than 1 foot(305 mm). of oil burners and appliances shall be not smaller than 3/8-inch
Tanks shall be set on and surrounded with noncorrosive inert (9 mm)pipe or 3/8-inch(9 mm)outside diameter tubing.Copper
materials such as clean earth, sand or gravel well tamped in tubing and fittings shall be a minimum of Type L.
place. Tanks shall be covered with not less than 1 foot (305
mm)of earth.Corrosion protection shall be provided in accor- M2203.3 Fill piping. Fill piping shall terminate outside of
dance with Section M2203.7. buildings at a point at least 2 feet(610 mm)from any building
M2201.4 Multiple tanks. Cross connection of two supply opening at the same or lower level. Fill openings shall be
tanks shall be permitted in accordance with Section M2203.6. equipped with a tight metal cover.
M2201.5 Oil gauges. Inside tanks shall be provided with a M2203.4 Vent piping. Vent piping shall be not smaller than
device to indicate when the oil in the tank has reached a prede 1 /4 inch (32 mm) pipe. Vent piping shall be laid to drain
toward the tank without sags or traps in which the liquid can
termined safe level.Glass gauges or a gauge subject to break- collect.Vent pipes shall not be cross connected with fill pipes,
age that could result in the escape of oil from the tank shall not lines from burners or overflow lines from auxiliary tanks.The
be used. lower end of a vent pipe shall enter the tank through the top and
II M2201.6 Flood-resistant installation. In areas prone to shall extend into the tank not more than 1 inch(25 mm).
I flooding as established by the local jurisdictions,tanks shall be
installed at or above the elevation required in Section R322.2.1 M2203.5 Vent termination.Vent piping shall terminate out
or R322.3.2 or shall be anchored to prevent flotation,collapse side of buildings at a point not less than 2 feet(610 mm),mea-
and lateral movement under conditions of the design flood. sured vertically or horizontally, from any building opening.
Outer ends of vent piping shall terminate in a weather-proof
M2201.7 Tanks abandoned or removed. Exterior above- cap or fitting having an unobstructed area at least equal to the
grade fill piping shall be removed when tanks are abandoned or cross-sectional area of the vent pipe,and shall be located suffi-
removed.Tank abandonment and removal shall be in accordance ciently above the ground to avoid being obstructed by snow and
with the Fire Code. ice.
2011 OREGON RESIDENTIAL SPECIALTY CODE 22-1
SPECIAL PIPING AND STORAGE SYSTEMS
M2203.6 Cross connection of tanks.Cross connection of two
supply tanks, not exceeding 660 gallons (2498 L) aggregate -
capacity,with gravity flow from one tank to another,shall be
acceptable providing that the two tanks are on the same hori-
zontal plane.
M2203.7 Corrosion protection.Underground tanks and bur-
ied piping shall be protected by corrosion-resistant coatings or
special alloys or fiberglass-reinforced plastic.
SECTION M2204
OIL PUMPS AND VALVES
M2204.1 Pumps. Oil pumps shall be positive displacement
types that automatically shut off the oil supply when stopped.
Automatic pumps shall be listed and labeled in accordance
with UL 343 and shall be installed in accordance with their list-
ing.
M2204.2 Shutoff valves.A readily accessible manual shutoff
valve shall be installed between the oil supply tank and the
burner.Where the shutoff valve is installed in the discharge line
of an oil pump,a pressure-relief valve shall be incorporated to
bypass or return surplus oil.
M22043 Maximum pressure.Pressure at the oil supply inlet
to an appliance shall be not greater than 3 pounds per square
inch(20.7 kPa).
M2204.4 Relief valves. Fuel-oil lines incorporating heaters
shall be provided with relief valves that will discharge to a
return line when excess pressure exists.
22-2 2011 OREGON RESIDENTIAL SPECIALTY CODE
11/26/2012 2:28 PM FAX 5034931042 ECOTECH 0 0001/0003
E:r.T EUH
PO Box 11630 Portland, OR 97211
P. 503-493-1040 F. 503-493-1042
IFA)(
TO: City of Tigard — Building Dept FROM: Amanda Garrett
Ecotech LLC
FAX: 503-598-1960 FAX: 503-493-1042
PHONE: 503-718-2439 PHONE: 503-493-1040
SUB]ECT: Mechanical Permit Application DATE: 11/26/12
COMMENTS:
Please let us know if you need any other information!
-Amanda Garrett
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