How to fill the HPA paintball tank

Compressed air tanks, also known as High-Pressure Air (HPA), are just like scuba tanks but are complete with compressed air that you can breathe. They can hold up to 4500 psi of pressure and are made of aluminum with carbon wrapped around it.

The strain that paintball tanks can maintain is not just how much pressure they can send out and how much stress they can hold. The device on HPA tanks has a regulator built in that will reduce the pressure to a level that their paintball gun can use. 

HPA tanks are mainly used to fix the big problems that CO2 causes in paintballs by giving them a generator of air that doesn’t change with the temperature. You can fire your gun as quickly as you like, but it did not go down as it would if you used CO2.

Filling your HPA Tank to Use an Air Compressor

I’ll walk you through the process of filling a hPa paintball tank with just a compressor in this article.

How to Filling an HPA Tank Using a Compressor

Here we discuss some points to filling the HPA tank using the compressor:

HPA Tank Inspection:

First, check the HPA tank for leaks and damage. Leaks prevent tanks from filling and can cause serious injuries. Stop if your tank leaks. Instead of repairing it yourself, hire a pro.

HPA Tank Is Empty:

If your HPA tank is ready to go, you should let out any air still in it. Start taking the HPA tank from a good area and enter the air pressure valve. The tank should let out all of the air within a few seconds. It’s essential to pick a very well area, so the release will not make it hard for you to breathe.

Method to set up the compressor:

Now use the compressor and its setup. Use an adaptor to connect the oxygen cylinder to the HPA tank and compressor nozzle. To prevent leaks, assure that all fittings are suitable and secure.

Activate Compressor:

If the compressor is battery-powered, keep in mind the battery is charged when connecting it to the power supply. Fill the HPA tank carefully by turning on the compressor.

PSI (pounds per square inch):

It would help if you kept the required air’s PSI constant. Compressor PSI must equal HPA tank PSI to fill an HPA tank with a proper amount of air. The pressure meters for both HPA tanks (if only one exists) and the pressure ratio switch should be monitored during the filling procedure to ensure that you have enough air in the tank.

Remove the compressor from the equation.

Whenever the HPA tank is complete, you could turn it off from the compressor or disconnect the power supply. Unplug the HPA tank first from compressors by removing the valve and connection.

HPA Tank:

Finally, nowadays that your HPA tank is packed, you need to find a new place to keep it. Please don’t put it in the open because it’s dangerous. Instead, try to put it in a safe place in the house or near the project.

When you fill an HPA tank too quickly, you can make errors called a “hot-fill.” This happens when you force the lever or keypad too hard, and air only blasts out from the cylinder into the HPA tank, which usually causes the flow meter to rise quickly. The issue is that the warm fill only seems to fill the tank, and as soon as you unplug the HPA tank, the atmosphere will get warm, and the measure will go back if you’re not using this.


Output pressure stays the same no matter what the heat is outside.

No clouds to block your view: When shooting, compressed air is much less likely to form clouds that block your view. Unless it is very humid outside, you won’t have to see a gas cloud in front of you when you start firing. 

All paintball guns are safe to use: Compressed air is the only way to shoot current paintball weapons on the market today.

Most fields are changeable:

Every field I’ve been to charges a set rate of between $5 and $10 for the whole day to replenish the tank with gas.

Simple to reload: Filling and topping off HPA tanks is easy. Just connect the fill pipe to the fill nipple without emptying the tank of air to fill it up.

Scuba tank refilling: For those who paintball or conduct technical work on their property and have an underwater tank, filling their tank is as simple as going to a commercial shop or paintball area.

Pressure adjustment: Tank regulators manufactured by firms such as Ninja Paintball can have their output pressure changed to be as high or as small as the user requires for their paintball gun.


HPA tanks are costly: HPA tanks are a bit more expensive than CO2 tanks. Based on how the tank is created or what kind of controller is on it, they can cost anywhere from $40 to $250.

Need special tools to recharge: If you need to fill up your tank, you may need to find an actual shop, a paintball area, or an underwater tank with a converter.

HPA tanks are heavy: When considering the number of shots taken from a single tank, an HPA tank has a substantially larger volume than a CO2 tank.

More complex valves: The controller with a pressure sensor and an air input are included in HPA tank valves. Thus, they’re more than simply a standard open/close pin valve.