Fiberglass Gas Cylinder Expiration Date: Everything You Need to Know
When people buy a fiberglass gas cylinder, one of the most common questions they ask is:
“Does it expire? If yes, when is the expiration date?”
Just like steel gas cylinders, fiberglass gas cylinders also have an expiration period. This is because they are pressure vessels designed to safely hold Liquefied Petroleum Gas (LPG). Over time, wear and tear can weaken the cylinder, making it unsafe if used beyond its lifespan.
Do Fiberglass Gas Cylinders Expire?
Yes, fiberglass gas cylinders have an expiration date, usually between 15 to 20 years from the manufacturing date.
This means if your cylinder was manufactured in 2010, it may be due for replacement around 2025 to 2030, depending on the country’s safety standards.
How to Check the Expiration Date
To know if your fiberglass gas cylinder is still safe:
1. Check the manufacturing date. This is usually printed or embossed on the cylinder body.
2. Look for inspection markings – Some cylinders show a test date or revalidation date.
3. Add the lifespan: Most fiberglass cylinders are designed to last 15 years (some newer models up to 20 years).
4. Check local regulations – Some countries require cylinders to be re-certified after a certain period.
Why Expiration Matters
Using an expired gas cylinder is risky. Possible dangers include:
1. Gas leaks due to weakened material.
2. Explosion risk from pressure loss.
3. Failure to pass safety inspection during refilling.
That’s why gas plants and LPG distributors often refuse to refill expired cylinders.
Safety Tips for Fiberglass Gas Cylinders
> Always buy from trusted suppliers with original certification.
> Store your cylinder in a cool, dry, and ventilated area.
> Inspect the valve and body regularly for cracks or damage.
> Replace the cylinder immediately if it has expired or shows visible wear.
Safety checklist below:
1. Fiberglass Cylinder
> Average Lifespan: 15 to 20 years
> How to Check Expiry: Check manufacture date
> Action Needed: Replace after lifespan
2. Steel Cylinder
> Average Lifespan: 10 to 15 years
> How to Check Expiry: Check manufacture date
> Action Needed: Replace or re-validate
FAQs
Q1: What is the lifespan of a fiberglass gas cylinder?
> Most fiberglass gas cylinders last 15–20 years depending on manufacturer standards.
Q2: Can I still use an expired fiberglass gas cylinder?
> No. It’s unsafe and most LPG refill stations won’t accept expired cylinders.
Q3: Where can I find the expiration date?
> Check the manufacturing date stamped on the cylinder body, then add the expected lifespan.
Q4: Which is better – fiberglass or steel gas cylinder?
> Fiberglass cylinders are lighter, rust-free, and safer, but both require proper care and must not be used after expiry.
A fiberglass gas cylinder does expire, usually after 15–20 years. You should always check the manufacturing date and replace your cylinder once it reaches the end of its lifespan.
If your fiberglass cylinder is near expiry, it’s better to invest in a new certified cylinder rather than take risks.