The slow closing valve is recommended to be installed at the air valve inlet during the filling.

The design prevents the valve from slamming when closed which can cause “water hammer” and the resultant noise and damage to piping systems.

If the liquid speed is above 3 mt per second, the water hammer and therefore the float against the seat can easily damage the valve. The same happens to deep well turbine pumps where the speed is too high and can easily exceed 3 mt. per second.

Connection : flange – DN80 to DN400

Range : PN10, PN16 et PN25

Materials :

• Body: Ductile Iron EN GJS-500-7
• Internal Mechanisms: Stainless steel and bronze
• Seat: Elastomer NBR/EPDM of high durability
• Coating: Non-toxic epoxy for drinkable water. Internal and External 200 microns thickness

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Some other type of slow closing valve for clean, sea and processed crude water may reach your need, feel free to contact us. 

Some other type of slow closing valve for clean, sea and processed crude water may reach your need, feel free to contact us.