BRA.D6.622 - check valves - butterfly, stainless steel

This category includes inter-flange butterfly check valves from the BRA.D6.622 series, designed for use in heating, ventilation, and air conditioning (HVAC) systems, water distribution, pumping stations, and systems handling oils and hydrocarbons. These valves prevent backflow in pipelines and are constructed from corrosion-resistant materials for reliable operation in a range of fluid media. They are suitable for installation in all orientations and operate within a temperature range of -20 °C to +100 °C.

The valves are built to EN 1092 standards for flanged connections and are compatible with PN 16-rated flanges. They are sized from DN 50 to DN 600 and feature a compact design with lengths ranging from 43 mm to 76 mm depending on the nominal diameter. The valves are ideal for applications requiring minimal backpressure and opening pressure, both set at a minimum of 0.1 bar.

How to choose

Select the correct DN size based on the nominal diameter of the pipeline and expected flow rate.
Ensure the valve is compatible with PN 16 flanged connections as per EN 1092.
Verify that the operating temperature range (-20 °C to +100 °C) matches the system requirements.
Confirm the valve is suitable for the fluid type—water, oils, or hydrocarbons.
Check the minimum backpressure and opening pressure (0.1 bar) to ensure compatibility with the system’s hydraulic conditions.

Frequently asked questions

Can these valves be installed in any orientation?
Yes, the BRA.D6.622 valves are designed for installation in all positions, including vertical and horizontal configurations.

What is the maximum pressure rating for these valves?
Maximum pressure is 16 bar for DN sizes up to 300 and 10 bar for DN 350 to DN 600.

What materials are used in the construction of these valves?
The body and disc are made from stainless steel A351, while the pin and spring are made from AISI 316. The sealing material is FKM (Viton®).