34 Pa. Code § 3a.21 - Stamping
(a) A boiler or
unfired pressure vessel destined for use in this Commonwealth must be built to
the applicable ASME code of construction or meet the requirements of section 7
of the act (35 P. S. §
1331.7).
(b) A boiler or unfired pressure vessel built
to the ASME Code must be stamped with the appropriate ASME symbol, the
manufacturer's information in accordance with stamping requirements of the code
of construction, and its National Board registration number. The stamping may
be applied to a nameplate in accordance with the code of
construction.
(c) National Board
registration and stamping requirements do not apply to cast iron boilers, which
are constructed under ASME Code provisions and do not require final inspection
by a National Board inspector.
(d)
A new boiler or unfired pressure vessel installed in this Commonwealth must be
stamped with an identifying serial number consisting of the keystone symbol and
figures, which may not be less than 5/16 inches in height and arranged as
follows:
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(e)
A boiler or unfired pressure vessel that is not built to the ASME Code may be
stamped with a Pennsylvania special number if it meets the requirements of
section 7(b) of the act.
(f) The
Department may accept a boiler or unfired pressure vessel with a registration
number from another state for use in this Commonwealth if a National Board
inspector inspected and approved the boiler or unfired pressure vessel during
construction.
(g) Stamping required
under this section must be exposed at all times and may not be concealed by
paint or lagging.
Notes
This section cited in 34 Pa. Code § 3a.162 (relating to portable boilers).
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