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Safety valves

( number of products: 121 )

Safety valves are an indispensable protection for central heating and hot water systems. The task of safety valves is to protect the system in case of excessive pressure increase in the system. When the pressure in the system reaches a dangerous level, the safety valve will automatically open, letting the excess water out. As a result, safety valves prevent flooding, damage to other equipment in the system, and ensure the safety of system users.


The most important parameters of safety valves are their diameter (size) and opening pressure. Safety valves are subject to inspection by the Office of Technical Inspection (UDT), so together with the valves we provide a declaration of conformity and a PZH certificate.


In our online store we offer a wide selection of safety valves for central heating (CO), domestic hot water (DHW) and other installations that will meet the expectations of even the most demanding customers. We invite you to take a look at the offer.

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Functions and applications of safety valves

The primary task of these components is to monitor parameters and immediately react when permissible thresholds are exceeded. When pressure rises to a dangerous level, the safety valve opens automatically, enabling a controlled release of excess water to the outside. This mechanism effectively eliminates the risk of pipe rupture or boiler failure during emergency situations. Precision springs ensure that closing occurs as soon as conditions inside the installation stabilize, ensuring continuous operation.

Robust central heating safety valves are crucial for protecting heat exchangers against hydraulic overloads. In domestic hot water systems, the DHW safety valve plays an equally vital role by preventing tank damage during water heating. By using these components, users can avoid costly repairs and room flooding caused by leaking connections. Regular testing of these devices' operational readiness is required by regulations, guaranteeing complete protection.

Types of safety valves

The market offers various equipment variants tailored to the specific nature of a given heat source and working medium. Popular Syr safety valves stand out due to their manufacturing precision and resistance to limescale buildup within the mechanism. This manufacturer offers models dedicated to standard water systems as well as specialized solar solutions. A robust brass body ensures longevity and reliability, as confirmed by industrial approvals and numerous quality certificates.

In residential installations, boiler safety valves are fitted to protect tanks against excessive mechanical stress. A specialized boiler safety valve must hold hygiene certificates, as it comes into direct contact with drinking water. By choosing brand-name Syr safety valves, you gain peace of mind knowing that every Syr safety valve has undergone rigorous testing. An additional boiler safety valve and spare boiler safety valves ensure system safety and tightness.

Selecting the right safety valve

Correct matching of technical parameters is essential for maintaining the hydraulic protection of a residential building. The most important aspects are the connection diameter and the opening pressure, which must be lower than the maximum pressure tolerance of the protected device. Frequently used central heating safety valves and individual central heating safety valves feature pressure settings of 1.5 or 2.5 bar, depending on the system's needs. Before installation, check the documentation to ensure the selected element meets design requirements, guaranteeing safe operation.

To create a complete system, it is worth adding precise pressure gauges and a stabilizing pressure reducer. A pre-assembled DHW safety group, which integrates several functions into a single body, is often selected. It is also worth checking globe valves, which facilitate the servicing of individual pipe sections. Remember that every DHW safety valve must be checked regularly, and high-class safety valves along with a functional safety valve ensure peace of mind.

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