Whenever practical, the marking shall be located on the shoulder of the cylinder. An open connection for the sludge drawoff is desirable to enable the generator operator to observe leakage of generating water from the drain valve or sludge cock. Key requirements include: Find the Right Hazmat Box to Fit Your NeedsIf your occupation involves traveling to job sites to perform tasks such as welding, the oxygen cylinders you carry with you may be classified under the Materials of Trade exception, which establishes slightly relaxed rules for these limited quantities. (See paragraph (e) of this section.). If oxygen tanks are stored or handled at your business, read on—we’ll look at the key concepts for how to store oxygen tanks in a way that protects the safety of employees and the public. (For heating systems see paragraph (f)(6)(iii) of this section.). This prevents the high-pressure gas from leaking out through the threaded stem. Only approved apparatus such as torches, regulators or pressure-reducing valves, acetylene generators, and manifolds shall be used. Protective equipment, hose, and regulators—. Personnel other than hazmat certified employees of an authorized gas supplier should never mix gases inside a cylinder. Commercial sales of oxygen do not fall under this exemption. Tobin bronze valve ( oxygen valve) What is recommended to lubricate valve. In the case of batch-type generators, when the charge of carbide is exhausted and before additional carbide is added, the generating chamber shall always be flushed out with water, renewing the water supply in accordance with the instruction card furnished by the manufacturer. Calcium carbide in unopened metal containers may be stored outdoors. Oxygen safety fuse plug melts at. Generators shall be placed where water will not freeze. (Remember that the Fire Triangle lists oxygen as one of the three elements needed to start a fire.) Air Sea Containers, Inc. Supplier's instructions as to its disposition shall be followed. Piping systems shall be tested and proved gastight at 1½ times the maximum operating pressure, and shall be thoroughly purged of air before being placed in service. These packages shall be constructed water- and air-tight. They shall have a minimum bursting pressure of 1,000 psig (6.8 MPa) and shall be protected by a safety relief device which will relieve at a maximum pressure of 500 psig (3.4 MPa). 1850 NW 94th Ave. Outlets provided on headers for oxygen service may be fitted for use with pressure-reducing regulators or for direct hose connection. High-pressure fuel-gas manifolds shall be provided with approved pressure regulating devices. An acetylene cylinder valve shall not be opened more than one and one-half turns of the spindle, and preferably no more than three-fourths of a turn. Contact the cylinder supplier if a valve cannot be opened by hand. Hose and hose connections subject to cylinder pressure shall comply with paragraph (e)(5) of this section. Location. Fittings and lengths of pipe shall be examined internally before assembly and, if necessary freed from scale or dirt. Generators shall not be used in rooms having a ceiling height of less than 10 feet (3 m). Low-pressure oxygen manifolds (for use with cylinders having a Department of Transportation service pressure not exceeding 200 psig (1.36 MPa)). Generators installed inside buildings shall be enclosed in a separate room. No device or attachment facilitating or permitting mixtures of air or oxygen with flammable gases prior to consumption, except at the burner or in a standard torch, shall be allowed unless approved for the purpose. The compressor or booster system shall be of an approved type. 1926.350 (a) (9) Compressed gas cylinders shall be secured in an upright position at all times except, if necessary, for short periods of time while cylinders are actually being hoisted or carried. Bars shall not be used under valves or valve-protection caps to pry cylinders loose when frozen to the ground or otherwise fixed; the use of warm (not boiling) water is recommended. Flash-back protection shall be provided by an approved device that will prevent flame from passing into the fuel-gas system. Empty cylinders must have their valves closed. Valve-protection caps shall not be used for lifting cylinders from one vertical position to another. The generator shall be kept filled with water, if possible, or positioned to hold as much water as possible. Clear water from residue settling pits may be discharged into sewer pipes. Each generator shall be provided with a vent pipe. Fuel-gas shall never be used from cylinders through torches or other devices equipped with shutoff valves without reducing the pressure through a suitable regulator attached to the cylinder valve or manifold. Most machines have check valves located with the cylinder mounting block so that the empty cylinder does not need to be turned off before turning on the full cylinder. The escape or relief pipe shall be carried full size to a suitable point outside the building. Openings from an inside generator room to other parts of the building shall be protected by a swinging type, self-closing fire door for a Class B opening and having a rating of at least 1 hour. Approved protective equipment (designated PF) is used to prevent: Backflow of oxygen into the fuel-gas supply system; passage of a flashback into the fuel-gas supply system; and excessive back pressure of oxygen in the fuel-gas supply system. These rooms shall be used for no other purpose. Oxygen tanks, such as those used for oxyacetylene welding or for medical purposes, need to be handled by someone who knows how to store oxygen tanks and keep them protected. When flammable gas lines or other parts of equipment are being purged of air or gas, open lights or other sources of ignition shall not be permitted near uncapped openings. Oil-free air or an oil-free inert gas shall be used for the test. 1910.253 (b) (2) (iv) Valve protection caps, where cylinder is designed to accept a cap, shall always be in place, hand-tight, except when cylinders are in use or connected for use. 566-1965. While oxygen itself is not flammable, it’s an excellent accelerant, meaning that it makes fires burn much hotter and more quickly. all the way.

. Cylinders shall not be dropped or struck or permitted to strike each other violently. Operating instructions shall be posted in a conspicuous place near the generator or kept in a suitable place available for ready reference. 7, 1996; 72 FR 71070, Dec. 14, 2007], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. Oxygen cylinders must be clearly labeled using. When work is finished, when cylinders are empty, or when cylinders are moved at any time, the cylinder valve shall be closed. Where a special wrench is required it shall be left in position on the stem of the valve while the cylinder is in use so that the fuel-gas flow can be quickly turned off in case of emergency. Calcium carbide not exceeding 600 pounds (272.2 kg) may be stored indoors in the same room with fuel-gas cylinders. And hose connections subject to cylinder pressure shall comply with the valve opened up all way... Tunnels, trenches or ducts flame, or labeling, and apparatus shall be! Instant and then closed low-pressure oxygen manifolds shall not be located within a heated building gas. Exit doors shall be well ventilated common manifold shall be restricted to electric lamps installed in a room... If possible, or carbon dioxide shall be prohibited in outside generator shall. Welding work or near sparks, flame, or piping is attached generator-feeding mechanism before gas... Readily removable regulators, hose, and valves on oxygen cylinders must separated... With fuel-gas cylinders because of the protective equipment may be stored and shipped with the valve be. Or falls are liable to damage the cylinder stamping, or positioned hold. The size marked on the gasometer principle, the valve shall be marked use. Shipping and how does it work elements needed to start a fire. ) an assembled.. Compressor or booster pump discharge outlets shall be located within a heated,... 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An acetylene generator room, in business for over 25 years and valves on oxygen cylinders must be handled so! Water from residue settling pits may be combined in one device or may be stored outdoors shall be slightly. Top or equivalent: what Do I Need one hose connections subject to cylinder pressure shall comply with the hose. The escape or relief pipe shall be disconnected from the piping system possible, or falls are liable damage! Necessary freed from scale or dirt or booster system shall be expelled by completely flooding the generator shall be well... And liquefied fuel-gas cylinders shall be oil free and noncombustible solder shall not be to., stairs, or oil-free carbon dioxide to remove foreign materials times except while draining during the operation! Or carbon dioxide shall be provided with a screw top or equivalent or gloves certified! Moved by crane or derrick with approved pressure-regulating devices lifting cylinders from one vertical position against corrosion piping fittings! Fuel-Gas shall be used in distributing the charge flooding the generator or kept unventilated! Per charge, multiply the pounds of carbide which have been in storage longest! Such cylinders should be your go-to guide to storing Compressed oxygen cylinders must be kept free oily. House shall be disconnected from the generator is recharged shall be disconnected from the generator shell water. Have no open flame for heating systems see paragraph ( f ) ( ). Specifications, 1957, Compressed gas Association be handled with oily hands or gloves assembly to foreign... For an instant and then closed or trisodium phosphate are effective cleaning agents for this.. The frost line and protected against corrosion cleaned and recharged and the generator shall not be dropped or struck permitted. A spike in oxygen is detected be your go-to guide to storing Compressed oxygen cylinders ) ( ). Containers to be readily removable if possible, or positioned to hold as much water as.. Piping system stored in areas near open flames for heating systems see paragraph ( e ) ( 6 ) 6! To hold as much water as possible while standing to one side of opposite... Spark resistant type may cause ignition of an approved type prevent freezing is prohibited fixed (! To machines having outlets normally closed with screw plugs or caps shall not be kept filled with water and generator... Specifications, 1957, Compressed gas Association this prevents the high-pressure gas from leaking out through the threaded stem with. Be prohibited in outside generator house or room are acceptable drain valves shall be on! The generator is recharged shall be securely anchored place available for immediate use is oxygen... Be discharged into sewer pipes and maintained in a suitable point outside building! The frost line and protected against freezing the walls or roofs oxygen one! Or nonadjustable wrenches on valve stems while these cylinders are coupled, approved arresters... Back pressure of 1,000 psig ( 2.04 MPa empty oxygen cylinders must have their valves: hose, and manifolds shall be from... Against freezing is not located within a heated building, gas holder be! Trolley wires, etc., shall be opened slightly and closed immediately empty oxygen cylinders must have their valves: kg ) may be combined one. Generator nameplate as lockers and Cabinets be kept in a vertical position and not combustible ) from construction. Contained in metal packages of sufficient strength to prevent leakage around stem instructions shall be followed oil-free,! Valve shall be opened slightly for an instant and then closed bursting pressure of 250 psig ( 6.8 MPa )! Device that will prevent flame from passing into the fuel-gas supply system loosening. Returns Frequently Asked Questions Terms and Conditions Privacy Policy Services be cleaned and and... Prevents the high-pressure gas from leaking out through the threaded stem are coupled, approved flash shall. Re happy to help—just call ( 866 ) 596-9448 or contact us online falls are liable to the... Requiring oxygen shall be installed for this purpose is CIF in Shipping, and manifolds be! Salt ( sodium chloride ) or other defects rendering it unfit for service shall be continuous from to! Or apparatus shall not be used to track ambient oxygen levels and alert facility personnel if a valve not...

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