Safety valve 1915 g 3/4 inch 3bar 100kW 1915.20.151

Safety valve – protecting your heating system

The 1915 safety valve is a reliable device designed to protect pressurized systems – both those filled with liquid and with inert gas – against exceeding the permissible pressure. The diaphragm design ensures precise operation and long service life. This is a key element of every safe and efficient heating system, and can be used in central heating installations, boilers and other equipment subject to pressure changes.

Construction and application

The safety valves of the 1915 series are characterized by a solid construction made of high-quality materials resistant to corrosion and high temperatures. The body and housing are made of brass or bronze, which guarantees durability and reliability even in harsh working conditions. The diaphragm and seals are made of materials resistant to aging and high temperatures, ensuring tightness and long-term operation. The purpose of this valve is primarily to protect closed domestic hot water heaters, but it will also work in installations with non-aggressive technical gases (e.g. compressed air) and water-glycol mixtures (up to 50% glycol content).

• Wide range of settings: Available pressure settings (1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6 bar) allow you to adapt the valve to the specific requirements of the installation.
• Maximum operating temperature: Up to 140°C – allows use in most standard heating systems.
• Media resistance: Designed to work with vapors, gases and liquids – versatility of application.
• Easy servicing: The valve design allows for easy cleaning and inspection of the technical condition by turning the cap or unscrewing the upper insert.

Key features and benefits

This particular model – a 1915 safety valve with a 3/4 inch connection diameter and a 3 bar setting – is an ideal solution for installations requiring pressure protection at 3 bar. Made of high-quality materials, it provides reliable protection against the effects of excessive pressure in the heating or water system. This minimizes the risk of failure and ensures the safety of using the installation for both the end user and the installer responsible for the correct installation and operation of the system. Vertical mounting (inlet from below) is recommended for optimal valve operation. It has a PZH certificate confirming its compliance with hygienic standards.