The black hoses on the right are “A” fittings. These are the US standard fittings for oxy-fuel connections. Fuel is left hand thread, and the nuts have hash marks across the corners to identify them.
What is a Type B fitting?
Type B Bauer Style Agricultural Fittings and Accessories. Galvanized Steel (Except where noted otherwise) Type B (Bauer style) locks on the male side . Has a double pin locking lever for smooth closing action. Equipped with a safety pin to prevent accidental openings.
What is the difference between oxygen and acetylene fittings?
Fittings on the oxygen hose have right-hand threads; while those on the acetylene hose have left-hand threads. The primary function of a gas regulator is to control gas pressure. It reduces the high pressure of the bottle-stored gas to the working pressure of the torch, and this will be maintained during welding.
What is the color of the fuel hose on a torch system?
Attach one end of your Hose Set to the Oxygen and Fuel Regulators and the other end to your Torch Body. The Red colored hose is used for fuel and has left-hand threaded connectors. The Green hose (sometimes, Blue colored) has standard connectors with right-hand thread.
What color are fuel gas fittings?
NOTE: Red is generally accepted as the color for fuel gas, while green is used for oxygen hose.
Does oxygen or acetylene open first?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel. This is only part, but a very important part, of the complete safe operating procedure recommended for torches by Harris.
What are the three types of flames?
There are three types of flames natural flame, carburizing flame and oxidizing flame .
What are the two types of compression fittings?
- Type-A or non-manipulative fitting: These fittings are easy to install and do not require any modifications to the tubing. ...
- Type-B or manipulative fittings: Installation of Type-B fittings require flaring or belling the tubing.
How does a ferrule fitting work?
As the ferrule(s) moves axially into the fitting body, the body’s angled shape radially compresses the end of the ferrule onto the outer diameter of the tubing . It is this radial compression that creates the leak tight seal between the fitting, ferrule, and tubing, and gives the compression fitting its name.
What are the two main types of compression joints?
- Type-A or non-manipulative fitting: These fittings are easy to install and do not require any modifications to the tubing. ...
- Type-B or manipulative fittings: Installation of Type-B fittings require flaring or belling the tubing.
Which color hose is for oxygen?
Blue colour identifies the hose as being suitable for use with Oxygen, and distinguishes between other welding gas hose lines. Synthetic textile reinforcement offers working pressures of 20 Bar across the range of sizes, allowing for high pressure delivery of Oxygen gas.
What is the colour of hose carrying oxygen?
Oxygen hoses are normally coloured blue , acetylene hoses red, and propane hoses orange. Hoses should not be interchanged between the gases.
What can happen if fuel or oil gets on oxygen and acetylene regulators?
Oxygen under pressure and hydrocarbons (oil and grease) can react violently , resulting in explosions, fire, and injury to personnel and damage to property.
What is the ratio of oxygen to acetylene?
| Table : Fuel Gas Characteristics | Fuel Gas Maximum Flame Temperature °C Oxygen to fuel gas Ratio (vol) | Acetylene 3,160 1.2:1 | Propane 2,828 4.3:1 | MAPP 2,976 3.3:1 |
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What pressure should oxygen and acetylene be set at for cutting?
The recommended setting for multi-hole cutting using oxy acetylene is the oxygen regulator at 40 psig with the acetylene regulator setting at 10 psig.
