Best Nitrogen Regulators

Proudly made in USA, the Uniweld RHP800 is one of the sturdiest and most reliable gas pressure controllers on the market. But what is it about this model that makes it so distinct? A couple of things, actually. First of all, the double-stage valve mechanism of the RHP800 makes it easier to control the gas flow through the system while the nitrogen regulator is connected. On top of that, the high-contrast 2-inch gauges of this double-stage regulator are quite easy to read, even when the lighting and access to the outlet are limited.

As for the specifications of the device, the maximum delivery pressure can reach 800 PSI before it becomes unstable. Thus, it is recommended to use the regulator with systems that operate at 650-750 PSI. The brass pistons of the diaphragm are perfect for air conditioning, refrigerator systems, as well as for pressure testing. What's more, the brass T-shaped handle makes it easier to control the gas pressure without any sudden hikes that can potentially damage the gas system. Lastly, the pressure controller is protected by special rubber gauge boots that prevent the gauges from bending.

Strong, accurate, and extremely reliable, these are the core aspects that make Uniweld RHP800 one of the top gas control devices available on the market today.

The gauge range of the 0386-0814 TurboTorch gas regulator fluctuates between 0 and 4000 PSIG. Although its maximum delivery range is only 500 PSI, it still can be used on nitrogen bottles with the pressure of almost 2000 PSI, as long as the gas is dry and clean.

Designed for complex systems, this nitrogen regulator from TurboTorch is capable of nitrogen purging, an essential detail when it comes to removing hazardous volatile substances from both industrial and regular gas structures. Additionally, this model can be used for pressure testing of the HVAC systems. As we already mentioned, if the gas is dry, you can use the nitrogen to kill all moisture within the system.

The installation of the regulator takes just a few minutes and is similar to any gas welding cylinder setup. In order to make the process as smooth as possible, we recommend checking both the gas cylinder and the pressure controller for leaks.

Contrary to other pressure control products in the same price range, this regulator from TurboTorch is made of steel. That makes it highly resistant to premature corrosion and mechanical damage.

All things considered, this nitrogen tank regulator from Turbo Torch is your go-to solution if you have a gas system with medium to high PSI rates or a large number of inert gas tanks.

The RHP400 has all it takes to be a great pressure controller for almost any system that utilizes gas. Unlike similar models from the Uniweld company, though, this one has relatively weak gauges that may get loose over time if you do not properly connect the regulator to the gas cylinder. Alternatively, this can happen if the pressure inside the nitrogen bottle was too high when the cylinder was connected.

With that in mind, it is important to connect the regulator to the cylinder that is clean and not contaminated with oil. To prevent the gas from leaking out, we recommend checking the gas valves for leaks by spraying water on them.

Despite this minor flaw, the RHP400 model is still one of the top budget models out there, mostly thanks to the solid brass build and additional rubber protection that provides an extra layer of defense to the gauges.

Speaking of gauges, the maximum inlet pressure of the regulator is 400 PSI, which is more than enough for domestic gas systems and HVACs. Additionally, the unit can be used with CO2 on top of the low-pressure nitrogen.

All in all, the RHP400 model is a great budget-friendly option if you need to put a couple of regulator units on gas cylinders but don’t want to break the bank at the same time. Affordable, reliable, and extremely durable, this device is the best nitrogen regulator in its price range.

This model from SÜA has all the standard features of an ordinary pressure controller. On top of that, however, it also has a few things that make the model stand out from the regulator crowd.

While the maximum delivery pressure rate of the SMP400 is 400 PSI, more than enough for most HVAC systems, you can still use this gas pressure controller for pressure testing and nitrogen purging.

A solid brass construction allows using this model with various gases such as helium, argon, and nitrogen, as well as with other inert gas tanks. The CGA-580 connector can be fitted on virtually any gas tank. That makes this model a highly versatile pressure regulator.

Metal parts aside, the gauges are reinforced with rubber paddings that protect them from harmful conditions and temperatures. With these rubber protectors on, you can use the regulator both indoors and outdoors without too much of a hassle.

The only real issue with the regulator itself is the control handle that requires quite a bit of force applied to it. This is more apparent when the pressure that goes through the valves is reaching 400 PSI and above. That's why we don't recommend using this pressure controller at gas pressure rates of 600 PSI and higher.

To wrap things up, the great quality of build, versatility, and sturdiness easily make the SÜA SMP400 one of the best nitrogen regulators in its class.

The NFM-TT from Turbo Torch is a good example of an essential part of gas equipment, especially if you use gas-powered devices that require a stable gas pressure. The model can be used with welding devices for controlling the CO2 flow as well as inert gases.

Built to monitor the flow of the gases through the system, the nitrogen flow meters are not meant to be used as pressure controllers. Instead, the Turbo Torch NFM-TT can be connected to an existing gas system to detect any changes in the tension of the gas that flows through the hoses.

It isn't a perfect product but, as far as we can tell, this model only struggles with a low pressure of gas flow rates. It's not a huge problem but the gauges may take some time to show the current pressure level at around 0-50 PSI. Other than this small inconvenience, this flow meter is quite reliable when it comes to showing the correct pressure rate at PSI levels of 50 and above.

In the end, Turbo Torch has proved that they are capable of producing high-quality metal devices for gas systems at a relatively low price. However, despite the modest price tag, the NFM-TT is a reliable device in terms of measuring the pressure of the gas flow in both complex and simple systems.