HAR §12-225.1-2
HAR §12-225.1-2. Geothermal energy systems
Length: 213 wordsOfficial source
Cite as Haw. Code R. § 12-225.1-2
(a)
All
pressure vessels forming a part of a geothermal energy
system shall be designed and constructed in accordance
with the requirements of ASME BPV Code Section I, or
Section VIII Division 1, or Division 2, as applicable,
and registered with the National Board. New
installations shall require filing of an application
for installation permit prior to the commencement of
work as prescribed in section 12-220-2.1.
(b)
All boiler external piping shall be designed
and constructed in accordance with the requirements of
the ASME 831.1. Application for authorization for the
installation of boiler external piping shall be as
prescribed in section 12-220-9.1.
225.1-2
3 3 54
,,,,
(c)
When pressure vessels having a manhole
opening form part of a geothermal pressure system, the
piping upstream from the pressure vessel shall be
fitted with two stop valves having an ample free blow
drain between them. In determining the existence of
two stop valves, the well head stop valve shall not be
counted.
(d)
When multiple geothermal wells supply the
same pressure system, all pressure vessels having a
manhole opening shall be fitted on both the upstream
side and the downstream side with two stop valves
having an ample free blow drain between them.
[Eff
and comp
DEC 2l2019
]
(Auth:
§397-4)
(Imp:
HRS
§397-4)