Author: Maggie

If you are shopping for a carbon fiber SCBA cylinder, you will quickly run into the terms “Type 3” and “Type 4.” These labels describe how the pressure vessel is constructed — in particular the liner material and the way the carbon fiber composite carries the load. Here is what each type means, how Type…

Small satellites live and die by mass. Every gram of structure is a gram that can’t be payload — which is why nearly every modern satellite propulsion system stores its gases in a composite overwrapped pressure vessel, or COPV. This guide explains what a COPV is, how small satellite teams use them, and how to…

If you shoot a pre-charged pneumatic (PCP) airgun, you know the ritual: charge the gun’s reservoir to full pressure, shoot your string, and refill. A PCP air tank is the high-pressure bottle that makes those refills possible. This guide explains what a PCP air tank is, the sizes airgunners actually use, how carbon fiber compares…

Every carbon fiber PCP air tank needs a valve, and if you refill your airgun from the tank in the field, that valve is usually a PCP fill station valve. The PCP valve is the control point of the whole system: it seals in up to 4,500 psi of compressed air, shows remaining pressure on…

If you play paintball or shoot PCP airguns, you have probably heard the term HPA tank. HPA stands for high pressure air: ordinary air compressed to 3,000 or 4,500 pounds per square inch (psi) and stored in a portable cylinder. An HPA paintball tank feeds your marker a steady stream of clean, dry air for…

Ask any diver what they would change about their kit and weight is near the top of the list. Carbon fiber scuba tanks — composite cylinders with a metal liner fully wrapped in carbon fiber — hold serious air at a fraction of the weight of steel or aluminum. They also cost more, float differently,…

Your paintball tank is the engine behind every shot. Also called a paintball air tank, HPA tank, or compressed air tank, it stores the high-pressure air your marker needs — and the right choice affects your shot count, your marker’s balance, and how much weight you carry all day. This guide breaks down paintball tank…

Small satellites live or die by mass. Every gram of structure is a gram that cannot be payload or propellant — which is why the composite overwrapped pressure vessel (COPV) has become the standard satellite propellant tank and spacecraft pressurant tank for CubeSats and smallsat missions. This article explains how COPVs work, what they store…

Choosing the right size 4500 psi carbon fiber tank comes down to one question: how much air do you need between refills? A tank that is too small means constant trips to the compressor; one that is too big means carrying weight you never use. This guide walks through the full 0.36L to 12L range…