Wafer check valve, spring-loaded - series W6 - DN 40; L=31,5mm

Product detailed description

Wafer check valve - spring-loaded, BRA.W6.020, size: DN 40, length: 31,5 mm

• max. pressure 16 bar 
• wafer type between flanges PN 16/PN 10/PN 6 acc. to STN EN 1092-1
• T = -10 °C to max. +100 °C
• for heating and air conditioning (HVAC), water systems, oils and hydrocarbons
• material: body - cast iron GJL 250, disc and web - stainless steel A351 CF8M, spring - AISI 316, seal - NBR
• installation in any position
• minimum back pressure 0.1 bar
• opening pressure according to size - see technical data sheet
• suitable for water containing up to 50% glycol
• not suitable for steam

Frequently Asked Questions

• How do I choose the right type and size of fitting/valve? Follow the nominal pressure (PN) and operating temperature (T) stated in the technical parameters - they must match or exceed the actual operating conditions of your system, and the connection size must match the pipe diameter.
• How does this fitting/valve work? The exact operating principle (shut-off, pressure regulation, non-return function, etc.) depends on the specific type - you can find a detailed description of the function above for this product.
• Does the installation have to be done by a professional? Simple shut-off fittings can be installed even by a skilled DIYer, but for control and safety fittings (safety valves, pressure reducing valves) we always recommend a professional, as these are components with a safety function.