RULES OF CONDUCT FOR A SAFE USE OF OXYGEN BLOWING AND CUTTING EQUIPMENT AND RELATED ACCESSORIES

PRESSURE REGULATORS

Check tightness of all fittings.
Check the pressure gauge by turning the knob after opening the gas valve and verify that the indicator rises gradually.
It is advisable to replace pressure regulators after no more than five years of operation, regardless of condition.

HOSES

Regularly inspect the hoses for their entire length to check the soundness.
It is advisable to replace the hoses after three years of heavy use or after five years regardless of condition.

FLASHBACK-ARRESTORS

Always install flashback arrestors (EN 730-1, ISO 5175) to reduce burst risk due to malfunction or misuse of the equipment.
Antiflashback devices should be fitted directly upstream of the equipment in use and on the outlet connection of the pressure regulators on both the fuel gas line on the Oxygen line.
It is advisable to replace the safety devices after no more than three years of operation, regardless of condition, and always after a flashback or damage.

CUTTING TORCHES AND OXYGEN BLOWING EQUIPMENT

Maintain all seals, gaskets and valves in perfect condition.
Use only equipment in good condition and fully efficient. Subject the equipment to regular visual inspections.
In case of any gas leakage in and around the torch equipment, disconnect it immediately and perform appropriate maintenance.
The devices should not be modified or altered unless prior authorization from Contessi is given

CONNECTION AND QUICK-ACTION COUPLINGS

Check the fastening and the tightness of fittings and the quick action couplings, verifying the seal at the operating pressure, testing them both coupled and disconnected. In case of accidental damage, malfunction or leak, replace them.
It is advisable to replace the connections after three years of heavy use or after five years regardless of condition.

DEGREASING FOR THE USE WITH OXYGEN

It is of utmost importance to check that there are no traces of grease. If any are found, all parts must be cleaned immediately and accurately using the correct method
Never lubricate either the equipment or its components.
Do not wear greasy or oily clothes while using the device.

GAS FEEDING

Use only the prescribed gas. Do not connect to any other pressure recipients
Use only in the prescribed flow direction and do not exceed the maximum working pressure

USE OF THE EQUIPMENT

Cutting torches and Oxygen blowing equipment are intended for industrial use, and require trained operators who have full knowledge of the risks associated with these activities.
It is always recommended that the instructions are read and understood prior to installing and using the oxy-gas equipment.
If you are not sufficiently familiar with the equipment do not hesitate to seek clarification from your supplier.

PERSONAL PROTECTIVE EQUIPMENT FOR OXYCUTTING AND GAS-WELDING ACTIVITIES

SAFETY FOOTWEAR

Wear shoes or boots with metatarsal protection (EN ISO 20345) or split-leather gaiters (EN 470-1) to prevent fire for accidental contact with hot particles.

FIREPROOF SUIT

Always wear appropriate clothing in flame retardant fabric (EN 340, EN 531) or split-leather aprons (EN 340, EN 470-1) to prevent the risk of fire caused by molten metal splashes or projection of incandescent particles.

WELDING CAP

Always protect head and hair with a specific split-leather cap.

SAFETY GLASSES

Always wear special glasses with green lenses (EN 166, EN 169) suitable to protect the eyes from the light of the oxy-fuel flame, to prevent possible damage to the retina.

PROTECTIVE GLOVES

Always wear split-leather protective gloves with gauntlet cuff (EN 407, EN 388, EN 470-1) to protect hands and arms from the risk of burns due to the accidental contact with hot surfaces or molten metal.

FUME EXTRACTION SYSTEM

Use adequate fume extractors to prevent the inhalation of gas, dust and fumes produced during processing.


Periodic Inspections and Maintenance Program

Click on the image to download the recommended Inspections and Maintenance Scheduling for oxyfuel equipment, according to UNI 11627 Standard.