Safety Guidelines for Handling LPG Systems
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Safety instructions for handling LPG systems Warning: Work may only be performed by trained personnel. Faulty installation can lead to fire or explosion, which is a danger to life and limb. An absolute smoking ban applies to all work. On customer handover If on customer handover it is concluded that the multivalve or parts inside the tank must be replaced, if possible ask the customer to run the tank as low as possible until the time of the appointment. Ideally, switch to petrol. If the vehicle cannot switch to petrol, a faulty or non-closing tank take-off valve (multivalve) must be assumed. Warning: When the tank display shows empty, there is still a residue of liquid gas in the tank. The residual content must be fully drained as liquid gas leads to freeze burns when it escapes uncontrolledly. Electrostatic discharges, sparks and open flames can ignite the gas-air mixture and lead to explosions which lead to serious injury and/or damage. Car gas tanks must not be drained in closed or poorly ventilated areas. This includes pumping out. Risk of explosion! General instructions BEFORE draining the tank There are 2 ways of draining the tank.
For both methods, a safety zone must be established which differs between methods. The location of the safety zone must be selected so that no gas reaches remote buildings, e.g. via open windows and doors. The area must also be freely accessible and well ventilated. Do not use a yard behind the building. A leak test must be carried out on the gas system for both methods. Method 1 In this method, a safety zone must be established of at least 5 metres radius, which can be expanded if required. The safety zone must be identifiable to everyone and access routes must be marked with a warning of explosive atmosphere. This area must contain no persons, buildings, excavations or effective sources of ignition as a flame of approx. 5 metres can be expected. The vehicle must be parked outside the safety zone. Note: The electrical systems in the vehicle are regarded as effective sources of ignition. The burner jet must be erected in the centre of the safety zone, and the wind conditions must be observed. In strong wind, the safety zone must be extended accordingly. The burner jet must be erected and ignited as instructed by the manufacturer. During the burn-off, the vehicle, burner jet, flame and environment must be constantly monitored. Note: To avoid a false alarm, inform the competent fire service or police about the controlled burn of the gas (telephone call). Method 2 In this method, a safety zone must be established of at least 10 metres radius, which can be expanded if required. The safety zone must be identifiably blocked to everyone and access routes must be marked with a warning of explosive atmosphere. This area must contain no persons, buildings, excavations, hot surfaces or effective sources of ignition. The vehicle must be parked outside the safety zone. Note: The electrical systems in the vehicle are regarded as effective sources of ignition. The blow-off line must be erected in the centre of the safety zone. The opening of the blow-off line must point up, and must not be kinked or blocked. The blow-off line consists of an approved copper gas pipe or hose with copper core. Corresponding pipe connectors must be used. The length of the blow-off line must be 12 m, and the internal diameter 6 mm. If the tank take-off valve is faulty, the solenoid valve in the engine bay must be used. Warning: Liquid gas can lead to freeze burns. Gloves with a sleeve length of at least 20 cm must be used to protect from cold. The eyes must be protected with protective goggles. |
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