18
Gas
news
Ensuring minimum
supply pressure to
gas appliances
By Tyler Mason, Gas Engineer
ESV has become aware of the possibility
that supply pressure at some natural
gas installations may not be sufficient
to provide the minimum 1.13kPa supply
pressure at the inlet to an appliance.
AS/NZS 5601.1:2013 requires that piping be
sized to ensure that the gas supply pressure at
the inlet to an appliance is a minimum of
1.13kPA. However, gas distribution companies
are required to comply with the Gas Distribution
System Code in Victoria, which is overseen
by the Essential Services Commission. This
document conflicts with AS/NZS 5601.1:2013
by specifying a minimum of 1.1kPa at the outlet
of a consumer billing meter, which would result
in a situation where pressure at the inlet to an
appliance is less than 1.13kPa.
ESV is considering options to rectify the
situation, and has opened discussions with
the Essential Services Commission about
amending relevant regulations and codes.
ESV is not aware of any safety issues as
a result of this situation, and is working to
ensure that this does not impact on any future
installation works.
As a licensed or registered gasfitter, should
you encounter a circumstance when there is
insufficient pressure at the inlet to an appliance,
check the consumer piping to confirm if it
is sized correctly.
If the consumer piping is adequately
sized, the problem may be at the outlet of
the billing meter. Do not attempt to adjust the
service regulator.
Please contact the relevant gas distribution
company to seek their assistance.
or further information call the
F
ESV Gas Safety Technical
Helpline on 1800 652 563
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