Regulator requirements for supply gases
| Notice | |
|---|---|
LOW-QUALITY REGULATORS CAN REDUCE PERFORMANCE AND CUT QUALITY
Low-quality gas regulators do not provide consistent supply-gas pressure. They
can reduce system performance and decrease cut quality.
Do not use low-quality gas regulators.
| |
| Notice | |
|---|---|
DIRTY, OILY AIR CAN CAUSE DAMAGE TO THE AIR FILTER BOWL
Some air compressors use synthetic lubricants that contain esters.
Esters can cause damage to the polycarbonates in the air filter
bowl.
Add more gas filtration if necessary.
| |
It is important to choose the correct gas regulator, or regulators, for the conditions at the installation site. A gas regulator must be compatible with the gases used and appropriate for the environmental conditions. For example, certain regulators are recommended for specific temperature ranges. The type of gas (cylinder gas, line gas, or liquefied gas), and the gas-delivery pressure and flow, can also influence regulator selection.
- Reduces source gas pressure to the necessary delivery pressure in one step.
- Is not subject to tightly controlled delivery pressure.
- Is a good choice for generic applications and where fluctuations in source gas pressure are small.
- Reduce source gas pressure to the necessary delivery pressure in two steps. Dual-stage regulation uses two single-stage regulators. The first regulator reduces the pressure to approximately three times the maximum delivery pressure. The second regulator reduces pressure to the necessary delivery pressure.
- Are a good choice for applications that require consistent delivery pressure and where fluctuations in source gas pressure are large.
Your gas supplier can recommend the best gas regulator, or regulators, for the conditions at your site.
Local regulations and the type of gas that is used can influence the recommended inlet gas fittings for your gas connect console. Refer to the following table.
| Fitting type | Dimensions |
|---|---|
| N2 / Ar | 5/8 inch – 18, RH internal (inert gas) "B" |
| Air | 9/16 inch – 18, JIC #6 |
| F5 / H2 | 9/16 inch – 18, LH (fuel gas) "B" |
| O2 | 9/16 inch – 18, RH (oxygen) |