As the two-stage regulator does its job to maintain the constant pressure inside the propane tank, it also eliminates freezes from occurring. This will save the owner time and money as it also eliminates service calls to fix the issue.

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Small outdoor cooking appliances with an input rating of 100,000 BTU/hr or less are permitted to use the single-stage regulator.

This propane regulator received its name because of its role. Installation of a two stage regulator will provide uniform pressure to appliances. Understanding that there are varying pressures caused from inside and outside the tank, this propane regulator is a two-stage system that contains:

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This information is for informative purposes only. All LP Gas installations must be performed only by qualified installers in accordance with all applicable codes and industry standards.

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Every site has its own unique needs and each require a customised solution. If water is collected from a car park it would need an oil and water separator and from a rooftop dust would need to be filtered. When sourcing a commercial water harvesting systems ensure it includes commercial-grade filters, disinfection, pressurisation and control components assuring water safety and the reliability required for commercial buildings.

Residential rainwater collection systems

Whilst these systems are becoming increasingly popular in Australia, it’s still estimated that 90% or more of the water used by commercial properties could be replaced with non-potable water from on-site rainwater harvesting.

The main function of the propane regulator is to control the flow of the gas output from the propane tank to the appliance being fueled. A properly performing propane tank must maintain a steady gas flow even with varying pounds per square inch gauge, PSIG (the pressure inside the tank). The tank must be able to accommodate varying pressures from 8 PSIG to 220 PSIG without interrupting the gas flow at 11 inches of water column (w.c), which is required by the appliance.

Whether you’re striving to be an eco-friendly company to achieve a green star rating or are searching for long term cost savings, a commercial rainwater harvesting system can help. Rainwater harvesting is the collection and storage of rainwater for reuse on-site. It’s a substitute to using mains water which can be used for toilet flushing, irrigation and if treated properly drinking water and laundry.

For the convenience of the owner of single-stage regulators, these systems can be easily converted to two-stage systems using existing supply lines when they are unable to meet the required load.

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Please consider your transmission line piping which connects your propane tank to the appliance, to make sure that it is the correct size to efficiently and effectively accommodate the required volume of gas at 11 inches w.c.

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Southland Filtration is a leading Australian provider of commercial water filtration solutions. We’ve been helping businesses since 1995 with a focus on quality, custom solutions, and reliable service. We work with businesses and organisations in Australia and New Zealand to address their unique water challenges and maintain the highest standards.

Looking at the piping from the first-stage regulator to the second-stage regulator in this two-stage system, this can be a smaller pipe as it only delivers a PSIG of 10. The good news about this is that the savings from getting a smaller pipe for this connection can help fund the second regulator.

To help in this operation is the two-stage regulation. Let’s take a look at this and see how it works for better understanding:

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The reason why the nozzle would freeze is due to moisture getting into the apparatus and freezing, thus making the function of the propane tank difficult or impossible. The freeze will occur when the tank is under high pressure allowing the gas to expand into the body of the regulator.

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Please note, according to the National Fire Protection Association (NFPA 58 1998), it is prohibited to install single-stage regulators in any fixed piping system. Such systems include appliances for RV’s, motor homes, food trucks, and manufactured homes. Twin-stage or two-stage regulators are the only regulators that are mandated on these appliances.

Just one commercial rainwater harvesting system can prevent tens of thousands of litres of stormwater run-off every time it rains, helping to save 2-3 million litres of municipal water per year.

Using less municipal water translates into saving thousands of dollars in water and sewer bills each year for the life of the building, providing a real return on investment. As an average guide, approximate reductions of up to 80% of your water bill on a commercial application can be expected with a rainwater reuse system.

How it works is there is less chilling at the site of each of the two regulators, and as the gas exits the first-stage regulator and goes into the first-stage transmission line, it will be warmed up with the heat it provides eliminating the chance of freezing any moisture in the second-stage.

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This regulation device keeps the pressure within 1 inch of w.c. even with varying outdoor temperatures and conditions that affect the pressure

Another benefit of the two-stage regulation system is that if the owner would like to add more appliances to the system via another low-pressure regulator, the two-stage system can accommodate at the present load as long as the high-pressure regulator can manage the increase.

Depending on the project location, grants and incentives may be available to offset set-up costs for commercial rainwater harvesting systems.

Being wary of the condition of the first stage regulator is very important if you experience cold winter temperatures. Watch this regulator for any propane vapors that might be turning back into liquid which poses a threat of freezing and locking up the system.

*Search the Department of Industry, Innovation & Science website for grants and assistance. View the National Landcare Program website for more information on Environment Small Grants.

To further illustrate, temperatures reach as low as -20ºF, the first-stage regulator should not be set higher than 10 PSIG. If temperatures reach as low as -35ºF, the setting of the first-stage regulator should not be higher than 5 PSIG.

Water resources are stressed in communities throughout many parts of Australia and corporations realize they have an obligation to reduce their impact on the environment and its resources.