Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 400

millimeters (6.4 mm) in size or brass or copper tubing not less than eight
millimeters (8 mm) outside diameter with a wall thickness not less than
one and one fourth millimeters (1.25 mm).
6. Piping shall be substantially supported and protected against physical
damage and, where necessary protected against corrosion. All
buried piping shall be protected against corrosion.
7. Pipe joints and connections shall be made tight with suitable lubricant
or pipe compound. Unions requiring gaskets or packing, right and left
couplings, and sweat fittings, shall not be used in oil lines.
8. Proper allowance shall be made for expansion, contraction, jarring
and vibration.
9. Where supplies are set below the level of the burner, the oil piping shall
be so laid as to pitch toward the supply tank without traps.
10. Readily accessible manual shut-off valves shall be installed to avoid oil
spillages during servicing. The valve shall be installed to close against
the supply.
11. Where the shut-off valve installed in the discharge line of an oil pump
that is not an integral part of a burner, a pressure relief valve shall be
connected into the discharge line between the pump shut-off valve
and arranged to return surplus oil to the supply tank or to bypass it
around.
12. Where oil is supplied to a burner requiring uniform flow by gravity feed
and a constant level valve is not incorporated in the burning assembly
or the oil is not supplied by an automatic pump, a constant level valve
shall be installed in the supply line at the gravity tank or as close
thereto as practicable, to insure uniform delivery of oil to the burner.
The vent opening of such constant level valve shall be provided with
an anti-flooding device. Vent piping or tubing or constant level valve
shall not be connected to tanks or tank vents.
E. Conversion Oil Burners and Oil-Fired Units
1. Oil burners other than oil stoves with internal tanks, shall be provided
with some means for manually stopping the flow of oil to the burner.
Such device or devices shall be placed in a convenient location at a
safe distance from the burner.
2. Oil burners for which a competent attendant will not be constantly on
duty in the room where the burner is located while the burner is on
operation shall be equipped with a primary safety control or a type
specifically approved for the burner with which it is used. When
primary safety controls are installed in connection with other oil
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