Hydrostatic Testing Services For Fire Extinguishers, CO2 Tanks and SCBA Tanks

DOT-Certified Hydrostatic Testing for Fire Extinguishers & Cylinders in St. Petersburg, FL

Serviced Fire Equipment provides professional hydrostatic testing for fire extinguishers, CO₂ cylinders, and compressed gas tanks. As a DOT-approved testing facility, we deliver fast, reliable service for fire equipment companies, restaurants, and commercial facilities.

We specialize in high-volume testing with consistent turnaround times, while also offering convenient local drop-off and ship-in options for customers across Florida and the Southeast.

📞 Call now or request a quote to get started.

We handle everything from single cylinders to large-volume orders with consistent turnaround times.

Typical Turnaround is 7 to 10 days with Rush options available. 

SCUBA tank cylinder neck markings with labeled parts like working pressure, metal type, hydrostatic test date, serial number, and government approval

Wide Range of Cylinders Tested

We specialize in hydrostatic testing for a diverse array of cylinders, including but not limited to:
• Scuba Tanks
• Paintball Tanks
• Medical Oxygen Tanks
• Chlorine Tanks
• Beverage Tanks
• Kegerator Tanks
• Nitrogen Tanks
• CO2 Beverage Tanks
• Self-Contained Breathing Apparatus (SCBA) Cylinders
• Propane Tanks
• Low-Pressure Aluminum Cylinders
• Compressed Gas Cylinders
• High-Pressure Aluminum Compressed Gas Cylinders
• Fiber-Reinforced High-Pressure Cylinders
• Marioff High Fog Cylinders
• CO2 Fire Extinguishers
We pride ourselves on our ability to handle almost all cylinders that carry a DOT number, ensuring versatility and inclusivity in our services.

Water Jacket Hydrostatic Testing Process

Inspection

Cylinders undergo a rigorous inspection by our DOT-qualified technicians to ensure they are fit for testing.

Testing Procedure

Cylinders are placed inside a water jacket and pressurized with water to measure expansion and test integrity.

Requalification Records

Successful tests are documented with requalification records, and cylinders are marked with RIN identification and the retest date.

Condemnation Process

Cylinders that fail the test are marked as "Condemned," and with the owner's permission, are rendered unable to hold pressure.

What is Hydrostatic Testing?

Hydrostatic testing is required to ensure that pressurized cylinders remain safe to use under normal operating conditions. Over time, cylinders can weaken due to corrosion, fatigue, or damage.

During the process, the cylinder is filled with water and pressurized to a specified level to verify its structural integrity. If it passes, it is dried, reassembled, and returned to service. If it fails, it is permanently removed from use.

Hydrostatic testing is required by U.S. Department of Transportation regulations and National Fire Protection Association standards, including NFPA 10 for fire extinguishers.

What We Hydrostatically Test?

We service a wide range of cylinders and fire protection equipment:

  • Fire extinguisher cylinders (ABC, CO₂, water, clean agent)
  • CO₂ cylinders (beverage systems, kegerators, restaurants, bars)
  • SCBA cylinders (fire departments and industrial use)
  • Nitrogen, argon, and compressed gas cylinders
  • Fire suppression system cylinders

If you’re unsure whether your cylinder requires testing, contact us, and we’ll walk you through it.

Turnaround Times & Bulk Service

We understand downtime costs money—especially for fire equipment companies.

  • Typical turnaround: 7 to 10 Business Days
  • Expedited service may be available for urgent needs
  • High-volume orders welcomed

Bulk Dealer Support (Gaylord Program)

For fire equipment companies, we offer a streamlined bulk process:

  • Maintain inventory while your cylinders are being serviced
  • Fill Gaylord containers with units ready for testing
  • Schedule pickup when full
  • Receive serviced cylinders back quickly

This system helps eliminate bottlenecks and keeps your operation moving.

Hydrostatic Testing Near St. Petersburg, Tampa and Clearwater

We are conveniently located in St. Petersburg, Florida, and serve customers throughout:

Out-of-area customers can ship cylinders directly to our facility.

Frequently Asked Questions

How often is hydrostatic testing required?
Most fire extinguishers require testing every 5, 10 or 12 years depending on type. CO₂ cylinders are typically tested every 5 years.

What happens if a cylinder fails?
Failed cylinders must be permanently removed from service for safety reasons.

Can you refill cylinders after testing?
Depending on the gas, Yes, we can refill and return them ready for use. We fill Co2, Nitrogen, ABC and Nitrogen.

Do I need to empty the cylinder first?
No—our team will safely handle discharge and processing.

Why Choose Serviced Fire Equipment?

Expertise and Certification

As a fully licensed, DOT approved hydro testing facility, we can hydrostatically test the following DOT cylinders 3A, 3AA, 3AL, 3HT, 4B, 4B240ET, 4BA, 4BW, and Special Permit(s): 7235, 7277, 7737, 7945, 8059, 8162, 9421, 9634, 9791, 9894, 9909, 10019, 10147, 10776, 10869, 10915, 10945, 11005, 11194, 11598, 12079, 12479, 12706, 13483, 13488, 13583, 14003, 14339, 14387, 14932

Comprehensive Service

We offer a complete and thorough approach to cylinder care, ensuring that every step is handled with precision and expertise. From arranging transportation to conducting detailed inspections, our services cover every aspect of cylinder maintenance. In addition to our internal bead blasting, O2 cleaning, and cylinder painting services, we also specialize in hydrostatic testing. Hydrostatic testing is a crucial step in ensuring the safety and longevity of your cylinders, and we take it seriously. Our team conducts hydrostatic testing to the highest industry standards, giving you peace of mind with every cylinder we service.

Geographical Reach

Serviced Fire Equipment proudly extends its services to a wide geographic area, making our expertise accessible and convenient for clients in numerous locations. Whether you're located in Florida or beyond, we are equipped to handle your hydrostatic testing needs with ease. Even if you're outside of the state, you can ship your empty cylinders directly to our certified hydrostatic test station for safe and compliant testing. Once the testing is complete, we’ll promptly ship your cylinders back to you, ensuring you receive top-quality service no matter where you are. Our goal is to provide seamless, reliable, and efficient cylinder maintenance for all our customers, regardless of location.

Customer-Centric Approach

At Serviced Fire Equipment, we are dedicated to delivering personalized services that are uniquely tailored to meet the specific needs of each individual client. We understand that no two clients have the same requirements, which is why we take the time to listen and customize our approach to ensure complete satisfaction. Our commitment to reliability means you can trust us to handle your fire equipment needs with the utmost care and precision, regardless of the scale or complexity. Whether it’s hydrostatic testing, cylinder inspections, or any of our other specialized services, we work closely with you to provide a seamless and dependable experience from start to finish.

Hydrostatic Test Markings

Hydrostatic Testing Frequency

Understanding the testing requirements of your equipment is crucial for maintaining safety and compliance. We provide guidance on testing frequency based on DOT regulations and can assist in interpreting the requirements for different types of cylinders.
Common Testing Requirements
• DOT-3AL Gas Cylinders: Test every 5 years, unlimited life.
• DOT-3HT Gas Cylinders: Test every 3 years, 24-year life.
• DOT-3AA Gas Cylinders: Test every 5 years, unlimited life (or 10 years if stamped with a star).
• Special Permit (SP) Cylinders: Specific requirements based on the permit.

Hydrostatic Testing Services

Cylinder Markings and Compliance

Our hydrostatic testing services ensure that your cylinders comply with U.S. and Canadian standards set by organizations like ASTM and ASME. We ensure that all cylinders are correctly marked post-testing, adhering to legal and safety standards.

Interested in partnering with us

Whether you need hydrostatic testing or other cylinder services, Serviced Fire Equipment is just a phone call or email away. As the go-to hydrostatic testing facility for cylinders in St. PetersburgClearwaterTampaLargo
Pinellas Park, Bradenton, Sarasota, Lakeland, Venice, Brandon, Palm Harbor, Riverview, Winter Haven, Wesley Chapel, Spring Hill, Dunedin, Oldsmar, Plant City, Zephyrhills, Tarpon Springs, New Port Richey, Sebring, North Port, Port Charlotte, Orlando, Kissimmee, Winter Park, Clermont, Leesburg, and Ocoee, we are here to provide expert service. Let us handle the intricacies of your cylinder testing and maintenance needs.

Contact Us

Interested in partnering with us

Whether you need hydrostatic testing or other cylinder services, Serviced Fire Equipment is just a phone call or email away. As the go-to hydrostatic testing facility for cylinders in St. Petersburg, Clearwater, Tampa, Largo, Pinellas Park, Bradenton, Sarasota, Lakeland, Venice, Brandon, Palm Harbor, Riverview, Winter Haven, Wesley Chapel, Spring Hill, Dunedin, Oldsmar, Plant City, Zephyrhills, Tarpon Springs, New Port Richey, Sebring, North Port, Port Charlotte, Orlando, Kissimmee, Winter Park, Clermont, Leesburg, and Ocoee, we are here to provide expert service. Let us handle the intricacies of your cylinder testing and maintenance needs.

Our Water Jacket Hydrostatic Testing Process

water-stored-pressure-type-fire-extinguisher

Preparation

We begin by thoroughly inspecting your cylinders for any visible damage, corrosion, or defects. After cleaning the exterior to remove contaminants, we set up the water jacket apparatus, ensuring proper instrumentation and sealing for accurate testing.

Submerged_centrifugal_Fire_pumpset_LHMFLFM_series-5

Submerging the Cylinder

Carefully lowering the cylinder into the water jacket enclosure, we ensure full submersion and secure positioning to prevent movement during testing.

water-stored-pressure-type-fire-extinguisher

Pressurization

Gradually introducing pressure into the water jacket, we monitor and control the pressure to reach the specified test pressure for your cylinder. During the hold period, we meticulously inspect for leaks or weaknesses in the cylinder's structure.

Service2

Inspection

Conducting thorough visual inspections and leak detection tests, we assess the cylinder's exterior and structural integrity for any signs of damage or deformation.

Fire-Extinguisher-Maintenance-min

Depressurization and Evaluation

After completing the hold period, we depressurize the system and carefully remove the cylinder for post-test evaluation. Analyzing the test results, we provide detailed recommendations and remedial actions if any defects are detected.

Technician inspecting a wall-mounted fire extinguisher with a checklist.

Trust Serviced Fire Equipment for Your Hydrostatic Testing Needs When it comes to hydrostatic testing, trust the experts at Serviced Fire Equipment to deliver reliable, professional, and comprehensive services. With our years of experience, dedication to quality, and commitment to customer satisfaction, you can rest assured that your cylinders are in good hands.

Contact us today to schedule your water jacket hydrostatic testing and ensure the safety and compliance of your equipment. Let Serviced Fire Equipment be your partner in protecting what matters most.

Why Choose Us?

– DOT-approved hydrostatic testing facility
– Fast turnaround times with in-house testing
– Experienced technicians handling a wide range of cylinders
– Ability to service, refill, and return cylinders ready for use

We provide a complete solution so your cylinders are tested, documented, and ready to go without unnecessary delays.

Need hydrostatic testing near you? Bring your cylinders to our St. Petersburg facility or contact us to coordinate service. We’ll help you get your cylinders tested and back in service quickly.