Gas Regulators
Inventory from trusted manufacturers, backed by application support and responsive service.
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How Does a Gas Regulator Work?
One of the best ways to understand how something works is to take it apart. In this easy-to-follow video, we disassemble a gas pressure regulator and walk through how it operates.
You’ll get a practical look at the basics of a Maxitrol regulator, the inlet pressures it is designed for, and the internal components that make it function.
After watching, you should have a better understanding of how a regulator works internally. Keep reading to learn what information is needed to properly size a regulator for your application. Note: Stromquist does not handle tank regulators for propane (the first regulator in the line), but we do support downstream propane regulators.
How to Install a Gas Regulator
Matt Koenig with Stromquist & Company walks through the recommended way to install and set up a gas regulator. Many troubleshooting calls stem from installation issues rather than the regulator itself.
By following a few simple best practices, you can install the regulator correctly the first time and help reduce unnecessary time, effort, and cost.
Important steps for a successful installation:
- Install a drip leg and strainer to help prevent debris buildup in the gas line.
- Make sure both the drip leg and strainer are installed upstream of the regulator.
- During leak and pressure testing, relieve pressure from the drip leg or strainer to help clear debris from the line.
How to Properly Size a Regulator & What Stromquist Needs
Share these details with our team and we’ll help identify the right regulator for your application.
Inlet Pressure
Available inlet pressure may be provided in inches water column, ounces, or pounds.
Outlet Pressure
Desired outlet pressure can also be provided in inches water column, ounces, or pounds.
Flow Rate
Often called capacity, flow rate may be expressed in BTU/hr, CFH, or MBH. This is one of the most important sizing values.
Pipe Size
Pipe size is helpful, but regulators should not be selected by pipe size alone. It should support the pressures and flow you specify.
Type of Gas
Let us know whether the application is natural gas, propane, or another gas, since gas type affects regulator selection and flow performance.
Installation Application
Indoor versus outdoor installation impacts venting, weather protection, and long-term performance.
Is Your Regulator Going on a Generator?
Generator Applications
If this regulator is being installed for a generator, it is typically sized differently because of the initial surge in fuel demand during startup. A generator engine is essentially similar to a car engine, and the inlet is often designed around liquid fuel rather than natural gas.
Fuel also does not flow into the engine the same way it does for a gas burner. Instead, it pulses into each cylinder. Because of that, it is often necessary to increase the piping to the inlet and provide additional buffer capacity to handle the pulsing flow.
When sizing a regulator for a generator application, it is important to know the generator’s kW rating so the regulator and buffer can be selected properly.