Safety device coupling, mount. pressure reducer, oxygen, G 1/4

Safety device with coupling, for mounting on pressure reducer, oxygen, output G 1/4, input G 1/4

Safety devices of this type have three functions:

• They stop flashbacks and prevent the flame from spreading back into the hose or to the gas source, thus protecting the cylinder and the operator. Flashbacks occur when, for example, the burner is blocked, the gas flow is too low or incorrectly mixed gas is ignited.
• The valve automatically shuts off the gas supply in the event of overheating, thus preventing the transmission of combustible gases. A burning hose or flashback can endanger the entire system.
• The non-return valve ensures that gas can only flow in one direction – from the gas source to the torch – thus preventing one gas (e.g. oxygen) from flowing back into the line of the other gas (e.g. acetylene). If gases mix in the line, there is a risk of explosion.