BRA.W6.626 - check valves - spring stainless steel

This category includes inter-flange spring check valves from series W6, designed for use in heating, ventilation, and air conditioning (HVAC) systems, water distribution, pumping stations, oil and hydrocarbon transport, chemical industry, and steam applications. These valves prevent backflow by allowing media to flow in one direction while closing automatically when reverse flow occurs. The body, disc, and partition are made from stainless steel A351 CF8M, with a spring constructed from AISI 316 and metal-to-metal sealing. They operate within a temperature range of -25°C to +180°C and are suitable for use with water containing up to 50% glycol. These valves meet the requirements for potable water under regulation 409/2005 Coll.

How to choose

• Select the nominal size (DN 15 to DN 100) according to the pipe dimensions and flow rate required in the system.
• Ensure the flange rating (PN 6, PN 10, or PN 16) matches the pressure class of the connected piping system.
• Confirm the operating temperature range (-25°C to +180°C) is compatible with the intended application.
• Check that the minimum differential pressure of 0.1 bar is sufficient for the valve to function correctly.
• Verify compatibility with media such as water, glycol mixtures, oils, hydrocarbons, and steam.

Frequently asked questions

Can these valves be installed in any orientation?
Yes, they can be mounted in all positions due to their spring-loaded design and balanced internal geometry.

What is the maximum operating pressure?
The valves are rated for a maximum pressure of 40 bar.

Are these valves suitable for potable water systems?
Yes, they are certified for use with drinking water in accordance with regulation 409/2005 Coll.