8 CCR 1202-5-3 - CONSTRUCTION OF ANHYDROUS AMMONIA SYSTEMS
3.1.
Requirements for New Construction and Original Test of Containers,
Including Skid Containers
3.1.1. Each
container shall be constructed and tested in accordance with the Code and shall
have a minimum design pressure of 250 psig.
3.1.2. Containers used with systems covered
in Sections 7, 9, 10 and 11 shall be constructed and tested in accordance with
the ASME Unfired Pressure Vessel Code except that construction under Table UW
12 at a basic joint efficiency of under 80% is not authorized.
3.1.2.1. Containers built according to the
Code do not have to comply with paragraphs UG 125 through UG 128 inclusive, and
paragraphs UG 132 and UG 133.
3.1.3. Containers exceeding 36 inches in
diameter or 250 gallons capacity shall be constructed to comply with one or
more of the following additional requirements:
3.1.3.1. Containers shall be stress relieved
after fabrication in accordance with the Code, or
3.1.3.2. Cold formed heads, when used shall
be stress relieved, or
3.1.3.3. Hot
formed heads shall be used.
3.1.4. Welding to the shell, head, or any
other part of the container subject to internal pressure shall be done in
compliance with the Code under which the container was fabricated and shall be
performed by a person or company that has a current certificate of
authorization from the National Board of Boiler and Pressure Vessel
Inspections. Other welding is permitted only on saddle plates, lugs, or
brackets attached to the container by the container manufacturer.
3.1.5. All records of inspections and welding
on the container shall:
3.1.5.1. Be maintained
by the owner of the container;
3.1.5.2. Be made available to the
Commissioner upon request; and
3.1.5.3. Be transferred with change of
ownership of the container.
3.1.6. All containers shall be inspected by a
person having a current certificate of competency from the National Board of
Boiler and Pressure Vessel Inspectors.
3.1.7. The provisions of 3.1.2 shall not be
construed as prohibiting the continued use or reinstallation of containers
constructed and maintained in accordance with the ASME Unfired Pressure Vessel
Code.
Notes
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