Low Pressure Hydrostatic Cylinder Test

Designed to keep your fire extinguishers compliant with all local government mandates.

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Service Overview

Low Pressure Hydrostatic Cylinder Test Service

Our Low Pressure Hydrostatic Cylinder Testing Service is a critical safety measure, conducted every 12 years, to verify the integrity and durability of your portable ABC fire extinguishers' pressure vessels. This essential procedure ensures that your fire extinguishers will perform reliably in emergency situations, safeguarding your property and people.

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Comprehensive Testing

Our Low Pressure Hydrostatic Cylinder Testing is a mandatory service for most portable ABC fire extinguishers, designed to rigorously test and verify the pressure vessel's integrity every 12 years.

Visual & Pressure Inspection

Prior to hydrostatic testing, a thorough visual inspection assesses each fire extinguisher for external damage or wear, ensuring it's fit for testing. The test then applies precise pressure to the cylinder, rigorously examining it for leaks or structural issues, enhancing the reliability of your fire extinguisher's performance.

Certification & Compliance Documentation

After passing the hydrostatic test, your fire extinguisher is reassembled, refilled, and certified, with detailed documentation of test results, certification, and test date provided to meet regulatory requirements and safety standards.

The Process

How it works

The frequency of hydrostatic testing may vary depending on the type of extinguisher, its construction materials, and applicable regulations. However, a 12-year interval is common for many types of portable fire extinguishers. This testing helps ensure the safety and effectiveness of the extinguisher in the event of a fire emergency.

  • 1. Preparation

    The fire extinguisher is first emptied of its contents to make it safe for handling and testing. This involves discharging the extinguishing agent from the cylinder.

  • 2. Visual Inspection

    The exterior of the extinguisher is visually inspected for any signs of damage, corrosion, or wear. This initial inspection helps determine if the extinguisher is suitable for further testing.

  • 3. Hydrostatic Testing

    The extinguisher cylinder undergoes a hydrostatic test, which involves filling it with water or another suitable test medium and pressurizing it to a specific level. The pressure is held for a specified period while the cylinder is monitored for any signs of leakage or structural failure.

  • 4. Pressure Release and Inspection

    After the test, the pressure is released from the cylinder, and it is carefully inspected for any signs of deformation, leakage, or other defects. This inspection ensures that the cylinder maintained its integrity during the test.

  • 5. Reassembly and Refilling

    If the extinguisher passes the hydrostatic test and inspection, it is reassembled, refilled with the appropriate extinguishing agent.

  • 6. Certification and Documentation

    Once the 12-year hydrostatic test is completed and the extinguisher is deemed to be in good condition, it is certified as compliant. Documentation of the test results, including the date of the test and any relevant details, is provided. This documentation is essential for regulatory compliance and insurance purposes.

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Why Choose FES?

Don't wait for an emergency to find out your fire extinguishers aren't ready. Contact FES Indiana today for peace of mind and proactive safety measures. Protect your business, protect your future.

Expertise You Can Rely On

Our reliability is underscored by our consistent delivery of prompt, thorough, and efficient services, ensuring your business is not just compliant, but comprehensively protected. With FES Indiana, you're not just choosing a service provider—you're choosing a partner dedicated to safeguarding your business's future through proactive and preventive fire safety measures.

Comprehensive Services

From annual maintenance and inspection of fire extinguishers to specialized services like 6-year internal inspections and 12-year hydrostatic cylinder tests, we ensure that your fire extinguishers are not just compliant, but fully prepared to protect your premises and people. 

Local Focus, Global Standards

As a business rooted within a 1-hour radius of Indiana, we're your neighbors, understanding the local landscape and its challenges. Yet, we adhere to global standards of safety and excellence, ensuring you receive world-class service with a personal touch.

Your Safety is Our Success

At FES Indiana, we measure our success by the safety and satisfaction of our clients. Your trust in us to protect what matters most is a responsibility we take to heart, driving us to exceed expectations at every turn.



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Your safety is our priority. Let’s make your workplace a safer place together.

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More Information About FES

Frequently Asked Questions

  • What services does FES Indiana offer?

    FES Indiana specializes in comprehensive fire extinguisher services, including annual maintenance and inspection, 6-year maintenance service, and 12-year hydrostatic cylinder tests. Our goal is to ensure that your fire extinguishers are always in optimal condition, ready to protect your business and comply with safety regulations.

  • Why is regular fire extinguisher maintenance important?

    Regular maintenance ensures that your fire extinguishers are ready to use in an emergency, compliant with local and insurance requirements, and capable of safeguarding lives and property. It's not just about meeting regulations; it's about proactive safety measures to protect your future.

  • Can FES Indiana help my business comply with local fire safety regulations?

    Absolutely. Our services are designed to ensure that your fire extinguishers meet all local government requirements and insurance company protocols. Our thorough inspections and maintenance are performed to keep you compliant and your property safe.

  • How often do fire extinguishers need to be serviced?

    Fire extinguishers require an annual inspection and maintenance service to stay current with safety standards. Additionally, a more detailed internal inspection is necessary every 6 years, and a hydrostatic cylinder test is required every 12 years for most portable ABC fire extinguishers.

  • What are ABC Fire Extinguishers?

    ABC fire extinguishers are multipurpose devices designed to tackle most common fires, including those involving ordinary combustibles (Class A), flammable liquids (Class B), and electrical equipment (Class C). They use a dry chemical powder, monoammonium phosphate, which smothers the fire by interrupting the chemical reaction of the fire triangle (fuel, heat, and oxygen). Due to their versatility, ABC extinguishers are ideal for offices, homes, schools, and commercial spaces, making them a crucial part of any fire safety plan. Regular maintenance ensures they are ready for use in an emergency.

  • What is a Low Pressure Hydrostatic Cylinder Test?

    A Low Pressure Hydrostatic Cylinder Test is a safety verification process for fire extinguishers to ensure their pressure vessels are leak-free and structurally sound. This involves visually inspecting the cylinder, filling it with water, pressurizing it beyond its normal level, then checking for leaks or deformations. If successful, the extinguisher is drained, reassembled, refilled, and certified as safe to use. This test, often required every 12 years, confirms the extinguisher's reliability and compliance with safety standards.

  • How do I know if my fire extinguisher is still good?

    A fire extinguisher is considered "still good" if it falls within its maintenance and inspection schedule, has a readable pressure gauge indicating the proper pressure, and shows no signs of physical damage, corrosion, or obstruction. Regular inspections by a professional, like those provided by FES Indiana, can confirm its readiness and compliance with safety standards.es, our team of certified technicians is equipped to inspect and maintain a wide range of fire extinguisher types, ensuring that regardless of the specific needs of your business, we can provide expert service.

  • Does FES Indiana offer any special discounts for new customers?

    Yes, we offer a 10% discount for new customers on their first service. It's our way of welcoming you to the FES Indiana family and demonstrating our commitment to your safety.