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Welding and Cutting with Oxygen-Fuel Gas checklist
The professional inspection solution
You can conduct this checklist for free on the Checkbuster platform. You can use a lap-top, PC or the free inspection App
- Acetylene generated, piped, or used at pressures is no greater than 15 psig (pounds per square inch, gauge) or 30 psia (pounds per square inch, absolute)
- All welding apparatus (torches, regulators, pressure- reducing valves, acetylene generators, and manifolds) is purchased from reputable welding dealers who have indicated the equipment is suitable for the intended purpose
- All employees are trained and judged competent in the use of welding apparatus
- Rules and instructions covering the operation and maintenance of oxygen or fuel-gas supply equipment are readily available
Cylinders and Containers
- All compressed gas cylinders are legibly marked on their shoulders (by stenciling, stamping, or permanent labeling) with the chemical or trade name of the gas
- Oxygen and acetylene cylinders are kept away from radiators and other sources of heat
- Inside buildings, cylinders are stored in well-protected, well-ventilated, dry locations at least 20 feet from highly combustible material such as oil.
- Cylinders are stored in designated spaces where they will not be knocked over, damaged by passing or falling objects, or subjected to tampering by unauthorized people.
- Empty cylinders do have the valves closed
- Valve-protection caps are always in place on cylinders that are not in use
- Storage of fuel gas cylinders inside a building is limited to a total gas capacity of 2,000 cubic feet or 300 pounds of liquefied petroleum gas (except for those being used or attached and ready to use)
- A separate, specially constructed room or compartment is provided to store cylinders that have more than 2,000 cubic feet total gas capacity or 300 pounds of liquefied petroleum gas.
- Stored oxygen cylinders are separated from fuel-gas cylinders or combustible materials (especially oil or grease) by at least 20 feet, or by a noncombustible barrier at least 5 feet high with a fire-resistance rating of at least one-half hour.
- Cylinders, cylinder valves, couplings, regulators, hoses, and apparatus are kept free from oily and greasy substances
- Employees are required to handle oxygen cylinders with oil- and grease-free hands or gloves
- Care is taken to ensure cylinders are not dropped, struck, handled roughly, or permitted to strike each other violently
- Using valve-protection caps is prohibited for lifting the cylinder from one vertical position to another
- Unless the cylinders are secured on a special truck, regulators are removed and valve-protection caps installed before cylinders are moved.
- Cylinders without fixed hand wheels do have keys, handles, or nonadjustable wrenches on the valve stems while the cylinders are in service.
- Cylinder valves are closed when work is finished and before cylinders are moved.
- Cylinders are kept far enough away from the welding or cutting operation so that sparks, hot slag, or flames will not reach them. Or, fire-resistant shields are provided.
- Cylinders are placed where they cannot become part of an electrical circuit.
- Using cylinders as rollers or supports is prohibited
- When cylinders are hoisted, they are secured on a cradle, slingboard, or pallet.
- Using a hammer or wrench to open cylinder valves is prohibited
- A policy is in place to report problems promptly to the supplier.
- Fuel-gas cylinders are placed with the valve end up whenever they are in use.
- Compressed-gas cylinders are secured in an upright position so they cannot fall or be knocked over
- Before connecting a regulator to a cylinder valve, employees do open the valve slightly and close it immediately
- Before a regulator is removed, the cylinder valve closed and the gas is released from the regulator
- For torches or other devices equipped with shutoff valves, the fuel gas from cylinders is only used through a suitable regulator to reduce the pressure.
- If cylinders have leaky valves or fittings that cannot be stopped by closing the valve or tightening the gland nut, cylinders are immediately taken outside away from sources of ignition and slowly emptied
- Tampering with safety devices is prohibited
- Cylinder valves are always opened slowly
- Employees do know not to open acetylene cylinder valves more than 1-1/2 turns of the cylinder, and preferably no more than 3/4 of a turn
- Flash-back protection is provided by an approved device that will prevent flame from passing into the fuel-gas system
- When parallel lengths of oxygen and fuel-gas hose are taped together for convenience or to prevent tangling, four inches (or less) of every 12 inches of hosed is taped.
- The fuel-gas hose and oxygen hose are easily distinguished from each other
- All hoses are inspected at the beginning of each day
- Leaking, defective, burned, or worn hoses are removed, repaired, or replaced.
- Hose couplings of the type that cannot be unlocked or disconnected by a straight pull are without rotary motion
- Boxes used for the storage of gas hose are ventilated
- Hoses, cables, and other equipment are kept clear of passageways, ladders, and stairs
- Clogged torch-tip openings are cleaned with suitable cleaning wires, drills, or other devices designed for this purpose
- Torches are inspected at the beginning of each day for leaking shutoff valves, hose couplings, and tip connections
- Defective torches are removed from use
- Torches are lighted by friction lighters or other approved devices
- Regulators (including gauges) are repaired only by skilled mechanics who have had proper instruction
- Gauges on oxygen regulators are marked USE NO OIL.
- Union nuts and connections on regulators are inspected before use to detect faulty seats that may cause leakage of gas when the regulators are attached to the cylinder valves