Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 340

9. Installation of Pressure Regulators
Regulators shall be installed so that their operation is not affected by
weather, mud, insects, or debris.
10. Installation of Pressure Gauges
Gauges shall be installed to indicate compression discharge pressure,
storage pressure, and fuel supply container fill pressure.
11. Installation of Piping and Hoses
a. Piping and hose shall be run as directly as practical and with
adequate provisions for expansion, contraction, jarring, vibration,
and settling. Exterior piping shall be either buried or installed above
ground and shall be supported and protected against mechanical
damage. Underground piping shall be buried not less than four
hundred sixty millimetres (460 mm) below the surface of the ground
unless otherwise protected from damage by movement of the
ground. Underground and aboveground piping shall be protected
from corrosion in compliance with recognized practices. Threaded
pipe and fittings shall not be used under ground.
b. Manifolds connecting fuel containers shall be fabricated to
minimize vibration and shall be installed in a protected location, or
shielded to prevent damage from unsecured objects.
c. Piping installation, including its fittings and methods of jointing shall
comply with the applicable Plumbing Code of Practice for CNG
Vehicles.
d. Natural gas shall be vented only to a safe point of discharge. A
vent pipe or stack shall have the open end protected to prevent
entrance of rain, and solid material. Vertical vent pipes and stacks
shall have provisions for drainage.
e. The use of hose in an installation shall be limited to the following:
i.
A vehicle fueling hose;
ii. An inlet connection to compression equipment; or
iii. A section of metallic hose not exceeding nine hundred ten
millimeters (910 mm) in length in a pipeline to provide flexibility
where necessary. Each section shall be so installed that it is
protected against mechanical damage and is readily visible for
inspection. The manufacturer’s identification shall be retained
in each section.
f.
At public fueling stations, provision shall be provided to recycle gas
used for calibration and testing.
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