Non-Return Valve

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Ductile Iron Valve

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Ductile Iron Non-Return Valve

Non return valves are automatic valves, which are not only on the line of most pipes used in various industries, but also at the outlet of most pumps to pre the fluid from returning to the pipes and the paths in which the fluid moves.

Tilting-Disc Non-Return Valve with Counter Weight:

These valves are used to pre water reversal in water lines and to pre damage to other components. In such a way that when the direction of flow of the fluid is reversed, it will rapidly disconnect the flow of the fluid completely, and until the direction of flow of fluid returns to its previous state, the valve will remain closed completely and after the flow of fluid in the correct direction, the non-return valve’s disc automatically returns and fluid flows.

Ductile Iron Non-Return Valve

Scope of Supply:

:: Nominal Sizes: DN 200 – ۸۰۰
:: Pressure Ratings: PN 10, 16, 25
:: Allowable Working Temperatures: -10oC / +65oC
:: Useful for Drinking Water

Production Standards:

:: DIN EN 12334:Industrial valves – Cast iron non-return valves
:: DIN EN 558:Face to face and center to face dimensions of metal industrial valve for use in flanged pipe systems
:: DIN EN 1092-2:Standard of flanges and related fittings- Circular flanges for valves, ductile iron pipes and fittings
:: DIN 3476:Corrosion protection of water valves and pipe fittings by epoxy powder or liquid epoxy resin linings
:: ISO 5208:Standard of industrial valves- Pressure test for valves
:: DIN EN 1563:Founding- Cast iron with spherical graphite
:: ISIRI 4842:National standard of check valves