BRA.W6.020 - check valves - spring

The BRA.W6.020 series includes spring-loaded inter-flange check valves designed for use in heating, ventilation, air conditioning (HVAC), water distribution, and systems handling oils and hydrocarbons. These valves are suitable for applications with a maximum operating pressure of 16 bar and a temperature range of -10°C to +100°C. They are compatible with water containing up to 50% glycol content and are not intended for steam systems. The valves are constructed with a cast iron body (GJL 250), stainless steel disc and bar (A351 CF8M), and an AISI 316 spring, with NBR seals for reliable sealing performance.

Available in nominal sizes from DN 32 to DN 100, these valves are installed between flanges conforming to STN EN 1092-1 standards for PN 6, PN 10, and PN 16. They operate with a minimum back pressure of 0.1 bar and an opening pressure that varies by size. The valves can be mounted in any position and are designed for durability in industrial and commercial plumbing systems.

How to choose

• Select the correct DN size (e.g., DN 32 to DN 100) based on the nominal diameter of the system piping.
• Ensure compatibility with flange standards (PN 6, PN 10, or PN 16) and flange spacing according to STN EN 1092-1.
• Confirm the operating temperature range (-10°C to +100°C) and fluid type (water with up to 50% glycol, oils, hydrocarbons) match the system requirements.
• Verify the minimum back pressure of 0.1 bar is maintained in the system to ensure proper valve operation.

Frequently asked questions

Can these valves be used with glycol-based fluids?
Yes, the valves are suitable for water with up to 50% glycol content.

Are these valves compatible with steam systems?
No, they are not suitable for steam applications and should not be used in such systems.

What is the minimum back pressure required for operation?
The minimum back pressure required for the valve to function correctly is 0.1 bar.