Safety valve 1915 3.5 bar, 1/2 inch 1915.15.156

Safety valve – protection of installations and equipment

The 1915 safety valve is a reliable device designed to protect pressurized systems filled with liquid or inert gas from exceeding the permissible pressure. Its diaphragm-based design provides precise and effective protection, and a wide range of available settings (from 1.5 to 6 bar) allows it to be adapted to various applications. This model is used in heating, water installations, and systems using other non-adhesive liquids at temperatures up to 140°C.

This valve is particularly useful in situations where protection against sudden pressure increases is required, which may result from thermal expansion of the medium or failure of other installation components. This minimizes the risk of damage and ensures the safe operation of the entire system.

Construction and application

The 1915 series safety valves are characterized by a solid construction using high-quality materials – a brass or bronze housing, internal components made of spring steel coated with an anti-corrosion coating, and a diaphragm and seals resistant to high temperatures and aging. This ensures that the valve retains its properties for a long time, even in difficult operating conditions.

The application of the 1915 safety valve includes:

• Heating installations: protection of boilers and heat exchangers against overpressure.
• Water installations: protection against the effects of water hammer and pressure increases caused by water expansion.
• Industrial systems: protection of machines and equipment operating under pressure.
• Gas installations: protection against exceeding the permissible pressure of inert gas.

Key features and benefits

• Wide range of settings: the ability to choose from 10 available pressure settings (1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6 bar) allows for precise adaptation to specific installation needs.
• High working temperature: maximum working temperature up to 140°C enables the use of the valve in various environmental conditions.
• Durable construction: the use of high-quality materials guarantees long life and reliability of the device.
• Repairable: valves with a diameter of 1/2" and 3/4" can be repaired by replacing the head (1916), which reduces operating costs.
• Compliance with standards: the valve has a UDT 42-C-04/imp. type examination, which confirms its compliance with applicable safety standards.
• Easy installation: the possibility of mounting in a vertical position with a bottom inlet facilitates installation and servicing of the device.

Available thread sizes are: 1/2 inch (in this case), 3/4 inch, 1 inch, 1 1/4 inch, 1 1/2 inch and 2 inches – providing a wide selection for different types of installations. Remember to select the valve size appropriately depending on the thermal power of the installation (detailed information can be found in the catalog tables).