UFC 3-430-07
24 July 2003
including Change 1, Jan 2004 and Change 2, March 2005
CHAPTER 3
INSPECTION AND TEST FREQUENCIES
3-1 BOILERS. Inspection and test frequencies for boilers are shown in Table 3-1.
\ Table 3-1 Inspection and Test Frequencies - Boilers
Item
Internal
External Insp. &
Hydrostatic Test
Inspection
Operational Test
Boilers Wet
At least annually.
External at least
Tightness test at resumption of
or dry lay-up
At resumption of
annually.
active service.
active service.
External and
operational at
resumption of active
service.
Boilers Heating
ASME Section IV
At least annually.
Strength test at least once
Firesides: Annually
Hot Water Heating
After any alteration or
every 6 years. Tightness test all
for oil fired, three
or Hot Water
modification to
other years. Strength test after
years for all others
Supply Boilers
boilers, control
repair or alteration of pressure
equipment, or
parts. Additional times at the
Watersides: At least
Auxiliaries.
discretion of the inspector.
every three years.
After any repair or
alteration of pressure
Steam Heating
parts.
Boilers
At least annually.
At least annually.
Strength test at least once
After any repair or
After any alteration or
every 6 years. Tightness test all
alteration of pressure
modification to
other years. Strength test after
parts.
boilers, control
repair or alteration of pressure
equipment, or
parts. Additional times at the
auxiliaries.
discretion of the inspector.
Boilers Power
ASME Section I
High Pressure
At least annually.
At least annually.
Strength test at least once
Steam and Water
After any repair or
After any alteration or
every 3 years. Tightness test all
Boilers,
alteration of pressure
modification to
other years. Strength test after
MUSE
parts.
boilers, control
repair or alteration of pressure
(see note 1)
equipment, or
parts. Additional times at the
auxiliaries.
discretion of the inspector.
Domestic Hot
If applicable.: At least
At least every two
Discretion of inspector. Note:
Water Heaters
every two years
years.
Glass-lined vessels not to
(HLW)
exceed Maximum Allowable
ASME Section IV
Working Pressure (MAWP).
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