Qualifications and Requirements
50 809480 Instruction Manual XPR300
It is important to choose the correct gas regulator (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.
Your gas supplier can recommend the best gas regulator (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
Table 8 – Recommended sizes for gas fittings on page 48.
Single-stage gas regulation • Reduces source gas pressure to the necessary delivery pressure in
1step.
• Delivery pressure is not tightly controlled with this type of gas
regulation.
• Good choice for generic applications and where fluctuations in source
gas pressure are small.
Dual-stage gas regulations • Reduces source gas pressure to the necessary delivery pressure in
2 steps. Dual-stage regulation uses 2 single-stage regulators. The first
regulator reduces the pressure to approximately 3 times the maximum
delivery pressure. The second regulator reduces pressure to the
necessary delivery pressure.
• Good choice for applications that require consistent delivery pressure
and where fluctuations in source gas pressure are large.
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