Dual Stage Gas Regulators

Regulators FAQs

What's the difference between a manual changeover and an automatic changeover gas regulator?

Manual changeover and automatic changeover dual-stage gas regulators are used for multi-LPG cylinder setups.

Once one LPG cylinder runs out, an automatic changeover regulator will automatically switch from using one gas cylinder to another. For manual changeover regulators, the user will need to manually reset the valve after the first gas cylinder runs out.

Manual changeover gas regulators mean that you are less likely to unknowingly end up with two empty gas cylinders. However, they mean that you will have to pause gas usage and switch cylinders manually.

Using an automatic changeover gas regulator means that you don’t have to pause gas usage. However, you will need to routinely inspect your set-up to ensure that gas bottles are not empty.

To suit your preferences and needs, Bromic supplies both automatic and manual changeover gas regulators.

How do I read the indicator on my automatic changeover regulator?

If your auto regulator is not switching over, we recommend looking at the indicator first.

The indicator at the top of the gas regulator indicates if the gas bottle in use contains gas or is empty.

When the indicator is green, the regulator is ON and the gas bottle in use contains gas. When the indicator is RED, the cylinder it is pointing to is empty and the internal valve has switched over to use the other cylinder.

Please note, the indicator only indicates the contents of the cylinder that it is "pointing to" or "in use".  This means that the indicator can show RED when reading the first empty cylinder, even when the second cylinder has gas and is in use.

To accurately check the regulator/indicator is working – only connect or turn on one cylinder at a time and check if it is green or red and if there is gas at the outlet.

What does the safety shut-off feature do on dual-stage regulators?

All Bromic and Cavagna dual-stage regulators come with a patented safety shut-off feature.

The safety shut-off is a mechanism that will engage in the event of gas flow greater than 140% of rated flow (e.g. regulator diaphragm failure, equipment leakage downstream). This prevents any potential emergencies and ensures safety at all times.

Can Bromic, Kosan or Cavagna gas regulators be used indoors?

Only our appliance regulators are for indoor use. All other gas regulators are for outdoor use only.

What are First Stage and Second Stage gas regulators used for?

First Stage and Second Stage gas regulators are used in domestic and commercial applications.

A first stage gas regulator is often connected to one or two gas cylinder/s with pigtail/s, taking the pressure from max. 1750kPa to approximately 70kPa. A second stage gas regulator is placed further along the gas line and takes the gas pressure from approximately 70kPa to 2.75kPa.

We recommend Kosan First Stage and Second Stage regulators for high-pressure and high-volume commercial applications.

Are the 160MJ dual-stage regulator kits available with POL connections instead of the type 27?

Yes, the product code is 6060586 and has 2 x 6SHW0450 instead of the 2 x 6LCC270450FLA.

Are the manual and auto dual stage regulators AGA approved?

Bromic’s dual stage regulators do not have AGA approval, but instead has UL144 approval which comply with AS/NZS 1596, Section 5.5.8 of AS/NZS 1596 says "Regulators shall comply with UL144…". The UL Report File is under MH12419. This is the location of the approval https://productiq.ulprospector.com/en/profile/3662835/yksr.mh12419?term=YKSR&page=1

Can the natural gas appliance regulators be installed indoors?

Yes, the natural gas appliance regulators (item number: 6160788 and 6160785) can be installed in cupboards or outside for a BBQ.

Can the regulators be installed vertically or horizontally?

No, they must be installed with the vent facing down as per the manual. 

Do the manual and auto dual stage regulators have an OPSO?

No, the Bromic regulators are approved to UL144. According to section 15.3, we have a type 2 pressure relief valve instead of an OPSO. This relieves pressure through the vent, so the pressure downstream doesn’t exceed 14kPa.

Do the manual and auto dual stage regulators have an UPSO?

The 250MJ, 500MJ manual and 400MJ auto dual stage regulators don't have an UPSO. 

Is the outlet pressure adjustable when using the 160MJ dual-stage regulator kit?

Yes, it has a nut on the top that can be taken off and a small flat head screwdriver can be screwed in to increase pressure. 

What standard are the manual and auto dual stage regulators approved to?

Bromic regulators are approved to UL144. They comply with AS/NZS 1596, Section 5.5.8 of AS/NZS 1596 says "Regulators shall comply with UL144…"

Do I have to have both gas bottles open?

When using the 250 MJ and 500 MJ manual dual stage regulator and the 160MJ dual-stage regulator kit, no, they can be either open or closed. As long as the cylinder in usage is open and both pigtails are connected. When the cylinder empties, the manual changeover valve is switched over and the corresponding gas cylinder should also be opened. 

If you are using the 400MJ auto dual stage regulator, to operate it the auto changeover, both are open. To use it like a manual changeover, the reserve cylinder can be turned off (will have to be turned on when the first cylinder runs out). Both cylinders need to be connected to the regulator via pigtails at all times

Where were the regulators manufactured?

The 250 MJ and 500 MJ manual dual stage regulator, 400 MJ auto dual stage regulator and 160MJ dual stage regulator kit are manufactured in Italy, by Cavagna.

Does the vent have a threaded connection?

When using the 250MJ or 500MJ manual dual stage regulator and the160MJ dual-stage regulator kit, no, it's for outdoor use only.  

When using the 400MJ auto dual stage regulator, yes, 3/8” NPT F.

Gas Regulators - Frequently Asked Questions
Gas Regulators - Product Category

About Bromic Dual Stage Gas Regulators

Bromic dual stage regulators are designed for applications that require a constant outlet pressure for the life of a gas cylinder. Suited to multi-cylinder systems for large domestic or commercial applications and meet UL144 requirements ensuring safety and quality. Our range of dual stage gas regulators include manual and automatic changeover options, and come with a metal bracket.

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Bromic Plumbing & Gas