Short answer: Hydrophore and expansion tanks are vessels that operate under pressure and are subject to periodic inspection. These inspections, including internal/external examination, pressure testing, and safety equipment checks, are generally carried out in accordance with relevant standards (TS EN 13831 for closed expansion tanks). at least once a year It is monitored.
Hydrophors and expansion tanks, which are the heart of water pressurization and heating/cooling systems in buildings and facilities, operate under constant pressure. Membrane rupture, corrosion, or loss of pre-charge pressure lead to both comfort and energy loss, as well as pressure-related safety risks. Periodic inspections detect these problems before the malfunction escalates.
AES Innovation carries out periodic inspections of booster pumps and closed expansion tanks, including body inspection, membrane and pressure assessment, and safety equipment testing.
What is checked?
- Tank hull: corrosion, deformation and leakage
- Membrane/diaphragm: integrity and correct pre-charge pressure
- Pressure test: safe resistance to the tank's operating pressure
- Safety valve and pressure gauge: adjustment and accuracy check
- Connections and assembly security
Why is pre-charge pressure important?
In closed expansion tanks, water is placed on one side of the membrane and pre-charged gas (usually nitrogen/air) on the other. Incorrect pre-charge pressure leads to overstretching and premature rupture of the membrane, as well as pressure fluctuations in the system. During periodic inspections, the pre-charge pressure is verified according to the system parameters; this protects both tank life and system efficiency.
Legal Obligation and Period
Hydrophors and expansion tanks are subject to periodic inspections under Law No. 6331 and Annex III, as they fall under the category of pressure vessels. The general period is as specified in the standard, unless otherwise stated. once a yearThe inspection and control are reported by an authorized inspection body.
Frequently Asked Questions
What happens if the expansion tank bursts?
A rupture in a pressurized tank can cause serious damage due to the sudden release of energy; regular inspections catch corrosion and membrane problems before they reach this point.
How often should a water booster tank be checked?
As a pressure vessel, inspection is generally recommended at least once a year; more frequent inspection is advised under corrosive/severe conditions.
Inspect your water and heating system tanks.
for periodic inspection Our Inspection and Periodic Control Services Review it; for the legal framework. mandatory periodic inspection Check our guide.