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 System plans must be picked up within 30 days. All system plans left longer than 30 days will be discarded as abandoned.

05017 30TH ST

Review DateStatusComment(s)
6/12/2013 FYIAEROFLEX 5030 CENTENNIAL BLVD INSTALLATION OF ONE MICRO BULK 1500 GAL LIQUID NITROGEN TANK EXTERIOR GENERAL AIR SERVICE SEE ELECTRONIC DOCUMENTS ATTENTION: See our web site for our latest plan review comments for your job at: - go to "City Agencies" (tab on the teal bar to get a drop box) - click on - "Fire Department" - (Using the links down the left side of the page), click on - "Web Guide." Once you're into the Web Guide, click on "Plan Review Status" This will also give you access to numerous other items that may assist you in your future project design work.
FYINitrogen is non-toxic, non-flammable and essentially chemically inert. IT CAN ACT AS AN ASPHYIXIANT BY DISPLACING THE NECESSARY AMOUNT OF OXYGEN REQUIRED TO SUPPORT LIFE. Nitrogen at atmospheric temperatures and pressures exists as a colorless, odorless, tasteless gas. Nitrogen is classed according to type and grade (QVL) indicates the maximum amount of impurities which may be present. Liquified nitrogen is a Type II
FYI{AST} NOTE TO CONTRACTOR Prior to conducting fire final please arrange for or confirm Haz. Mat. inspection has been completed. Contact CSFD Office of the Fire Marshal to arrange for the tank permit inspection @ 385-5978.
Approved{AST} Tank Location: CRYOGENIC SEPARATION OF STATIONARY CONTAINERS FROM EXPOSURE HAZARDS EXPOSURE MINIMUM DISTANCE (feet) Buildings, regardless of construction type 1 ft Wall openings 1 ft Air intakes 10 ft Lot lines 5 ft Places of public assembly 50 ft non-ambulatory patient areas 50 ft Combustible materials such as paper, leaves weeds, dry grass or debris 15 ft and Other hazardous materials In accordance with Chapter 27 Bulk inert gas systems should be located in non-diked areas. Do not expose the system to electric power lines, crane ways or utility or process piping in a manner that would create a hazard. The location shall be accessible to mobile supply equipment and be provided with adequate: Foundation, lighting, vehicle protection and identification signs. Access shall be restrict to authorized personnel
FYI{AST} Tank Description: One, 1,500 gallon tank Contents: Liquid NITROGEN (CRYOGENIC) Type of containment: Unknown
FYIThe storage, use and/or dispensing of hazardous cryogenic liquids shall be in accordance with all applicable provisions of the 2009 International Fire Code including (but not limited to) Chapters 27, AND 32. OUTDOOR STORAGE OF STATIONARY CONTAINERS SHALL COMPLY WITH 2009 IFC 3203 AND 3204.3 {CRY}Inert cryogenic fluids, including argon, helium and nitrogen, shall comply with CGA P-18. Cryogenic fluid systems shall be suitable for the use intended and designed by persons competent in such design. Equipment, machinery and processes shall be listed or approved.
I{NRT-09} Shut-off valves shall be provided for all buildings at outside locations where they are readily accessible for shutting off the gas supply to the building in case of emergency. A shut-off valve at the gas supply shall also be provided. Shutoff valves shall be provided on all container connections except for pressure relief devices. Shutoff valves shall be provided with access there to and located as close as practical to the container. Shutoff valves shall be installed in piping containing cryogenic fluids where needed to limit the volume of liquid discharged in the event of piping or equipment failure. Pressure relief valves shall be installed where liquid is capable of being trapped between shut-off valves in the piping system. A shutoff valve shall be located at the source of supply and at the point where the system enters the building. **** EMERGENCY SHUT OFF VALVES Inspector to observe in field and identify locations.
I{AST} Provide for vehicle protection of tank in one of the following forms: 1) Provide Bollards- concrete filled Steel, Schedule 40, 4 inches outer diameter buried a minimum of 3 ft underground, extending a minimum of 3 ft above grade spaced at a minimum of 4 ft on center. Shall be anchored in a concrete foundation 15" diameter x 3 feet deep. Bollards shall be spaced away from the tank a distance equal or greater than their height above grade. Bollards shall not be more than 4 feet on-center. 2) Provide Concrete Road Barriers (Jersey Barriers) as approved by the Fire Code Inspector (4' apart, 4' from tanks. See 2003 IFC Section 312.3 for height and impact resistivity requirements). 3) CMU Block Screen Walls may be an acceptable method of vehicular protection. When CMU screen walls are considered for vehicular protection, they shall be proven to meet the height/impact resistivity requirements of 2003 IFC Section 312. *Standard traffic curbs are not recognized by the Fire Code as an acceptable method of vehicular protection. It appears (based on photographs) that vehicle protection bollards are present at the tank. It is unknown whether these bollards meet the requirements of item #1. Bollards shall be per IFC 2003, as amended. Inspector to verify. Vehicle protection was identified on these plans as bollards surrounding the tank. NOTE: ATTENTION: Vehicle protection compliance is subject to field inspection and approval.
Attention Electrical wiring and equipment shall comply with the ICC Electrical Code. Containers and systems shall not be located where they could become part of an electrical circuit.
IContainers shall be provided with substantial concrete or masonry foundations, or structural steel supports on firm concrete or masonry foundations. The surface of area on which stationary containers are placed, shall be compatible with the fluid in the container. Containers shall be supported to prevent the concentration of excessive loads on the supporting portion of the shell. Foundations for horizontal containers shall be constructed to accommodate expansion and contraction of the container. Foundations shall be provided to support the weight of vaporizers or heat exchangers. Containers of cryogenic fluids shall not be located within diked areas containing other hazardous materials. In areas subject to flooding, containers shall be anchored, secured or elevated to prevent separation from supports or foundation. Area surrounding containers shall be provided with a means to prevent accidental discharge of fluids from endangering environment,personnel, equipment and adjacent structures. The container shall NOT be placed where spilled or discharged fluids will be retained around the container. THIS PLAN SUBMITTAL DOES NOT SHOW CONTAINMENT OR FOUNDATION DESCRIPTION. Per Eric Younger: Eric Younger of Colorado Welding, inspected the integrity of the foundation and found it acceptable.
IContainers and systems shall be secured against unauthorized entry and safeguarded in an approved manner. Containers, piping, valves, pressure relief devices, regulating equipment and other appurtenances shall be protected against physical damage and tampering.
ISIGNS/MARKINGS/PLACARDS NO LABELING/MARKING/PLACARDS WERE PROVIDED ON PLAN SUBMITTAL Marking. Cryogenic containers and systems shall be marked in accordance with Sections 3203.4.1 through 3203.4.6. Provide proper placarding / labeling for tank on both sides of tank as per NFPA 704. If applicable, provide placards for all doors leading to areas containing tank. Visible hazard identification signs in accordance with NFPA704 shall be provided at entrances to buildings or areas in which cryogenic fluids are stored, handled or used. Stationary and portable containers shall be marked with the name of the gas contained. Stationary above-ground containers shall be placarded in accordance with IFC 2003 Sections 2703.5 and 2703.6. Stationary containers shall be identified with the manufacturing specification and maximum allowable working pressure with a permanent nameplate. The nameplate shall be installed on the container in an accessible location. The nameplate shall be marked in accordance with the ASME Boiler and Pressure Vessel Code or DOTn 49 CFR Part 1. Container inlet and outlet connections, liquid-level limit controls, valves and pressure gauges shall be identified in accordance with oneof the following: marked with a permanent tag or label identifying their function, or identified by a schematic drawing which portrays their function and designates whether they are connected to the vapor or liquid space of the container. Where a schematic drawing is provided, it shall be attached to the container and maintained in a legible condition. Piping systems shall be identified in accordance with ANSI A 13.1.
FYI{NRT-01} All areas in which a liquefied inert gas is used or stored shall be properly ventilated in accordance with all applicable provisions of the 2003 IFC. See Chapters 27, 30 and 32.
FYI{NRT-02} Inert cryogenic containers shall be provided with pressure relief devices to ensure that the maximum deisgn pressure of the contianer is not exceeded. Pressure relief devices were noted on specification cut sheet of valves.
FYI{NRT-03} All piping systems or vessels in which liquefied inert gases may be trapped between closed valves shall be equipped with pressure relief devices. In cases where liquefied inert gas may be trapped in any valve cavity, means of venting shall be provided.
FYI{NRT-04} Piping and manifold systems for inert gases shall be installed under the supervision of a qualified representative familiar with proper practices for their construction and use. Consultation with the gas suppliers is encouraged.
FYI{NRT-05} Piping systems and accessories used in liquid transfer operations must be fabricated from materials suitable for inert gas service at the temperatures and pressures involved. The suitable materials include copper, aluminum, brass, and stainless steel.
FYI{NRT-07} Valves and pressure relief devices on inert systems shall be protected against accumulation of ice, snow and to freezing moisture from the air.
FYI{NRT-11} Signs clearly establishing the location and identity of shut-off valves are to be provided.
FYI{NRT-11} All inert piping systems shall be identified by appropriate labeling with the name of the gas.
FYI{NRT-12} Vaporizers for inert gases shall be anchored and its connecting piping shall be designed to allow for expansion and contraction due to temperature changes. Adequate provisions for drainage of melting ice are required. ****VAPORIZER. Reference to vaporizer was identified in the material spec sheet however, no schematic of the piping or connection were provided.
FYI{NRT-13} The inert vaporizer and its piping shall be adequately protected on the gas side and, where necessary, on the heating medium side, with pressure relief devices.
FYI{NRT-14} Heat for inert vaporizer may be supplied by electricity, steam, air, water, other heat transfer mediums. When electric heat is used, installation shall be in accordance with the electrical code.
FYI{NRT-15} Each inert gas system installed on consumer premises shall be inspected at least annually and maintained by a qualified representative of the equipment owner.
FYI{NRT-16} The area within 15 feet of any inert gas storage container shall be maintained free of paper, leaves, weeds, dry grass, or other combustible debris.


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