When cylinders are re-inspected
The first interval is counted from the date of manufacture, which is shown in the passport and on the module nameplate.
After 10 years
The first re-inspection of FireStop cylinders is carried out 10 years after manufacture. The dates of subsequent inspections are given in the module passport.
Every three years
Between inspections the modules are weighed to make sure no agent has escaped. The rest of the time they are maintained according to the service schedule.
At least 30 years
This is the service life of a FireStop module. Over this period the cylinder is re-inspected several times.
When a module needs factory service
The cylinder inspection is due
The cylinder is taken out of service, emptied of agent, inspected and tested. The module is then restored and refilled.
Restoring operational readiness
After a normal agent discharge, the module is diagnosed, its discharge valve overhauled, refilled and leak-tested before returning to the system.
Identifying the cause of a fault
We assess faults and check the discharge valve and connection tightness, then determine the repair and refill scope.
Scope of work
The actual scope depends on the condition, completeness and manufacture date of the module.
Cylinder inspection
The procedure confirms whether the pressure cylinder can continue to operate safely.
- draining / removing the agent and safely depressurising the module;
- removing the discharge valve and disassembling the module;
- internal and external cylinder inspection;
- testing the cylinder to the requirements for the specific product;
- documenting the cylinder inspection result.
Module repair and refilling
After inspection or post-discharge servicing, the module is restored to working condition.
- overhauling the discharge valve;
- replacing required seals and consumables;
- assembling and checking the discharge valve;
- filling the calculated agent weight and pressurising to working pressure;
- checking tightness and weight, followed by final acceptance.
From module intake to factory checks after filling
Intake and fault assessment
We check completeness, markings, technical condition, weight and visible signs of faults.
Cylinder inspection and repair
Where required, we test the cylinder, overhaul the discharge valve and replace consumables.
Assembly and filling
We fill the required agent to the calculated weight and restore working pressure.
Checks and documentation
We check tightness and weight, perform acceptance checks and document the service results.
Reduce the gap in protection during servicing
Less time without protection
A temporary FireStop module can reduce the protection gap during factory servicing. Availability depends on having a module compatible with your system.
Compatibility agreed in advance
We agree the replacement module's technical parameters and changeover procedure in advance so you can plan the service outage.
Return of a tested module
After filling and factory checks, your module returns to the facility for installation in the system.
Frequently asked questions
What is a fire suppression cylinder inspection?
It is a set of procedures used to determine whether a pressure cylinder can continue operating safely. The procedure is defined by the requirements and operating documentation for the specific module.
When does a module need refilling?
After discharge, unacceptable agent or pressure loss, or an inspection during which the module was emptied.
Can a full cylinder inspection be performed on site?
No. The cylinder must be taken out of service, depressurised, inspected and tested at a specialist facility. The module is then reassembled and refilled.
What happens if the inspection deadline is missed?
An overdue module cannot simply be refilled and returned to service. It must first be inspected and approved for continued use. If the cylinder fails inspection, replacement is required.
Plan ahead to allow for approvals, procurement and delivery. If a compatible module is available, a temporary FireStop replacement can be agreed to reduce the protection gap.
Can a module be serviced without its datasheet?
First, send a photo of the manufacturer's markings. The serial number and other identifying details can help determine the next steps.
Do you service other manufacturers' modules?
We perform periodic cylinder inspection, repair and filling for FireStop modules manufactured by us.
What does the customer receive after servicing?
A serviced module that has passed the required checks, with inspection, repair and filling details recorded in its operating documentation.
How do I find my module's inspection date?
Check the module datasheet and manufacturer's plate for its type, serial number and manufacture date. The next inspection date is determined from the operating documentation, taking previous inspections into account.
If the datasheet is missing or the markings are unclear, send a plate photo; we can help identify the module and confirm the date. Inspection intervals and service life are different: a module may undergo several inspections during its lifetime.