Toilet Syphon With Internal Overflow & Dual Flush 9"

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Toilet Syphon With Internal Overflow & Dual Flush 9"

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Product Information

Delchen Opella internal overflow dual flush WC toilet cistern syphon.

9 inch size refers to the height of the internal overflow bridge and not the overall height.

Overall height inside toilet cistern is approx 10-1/2 inches (not including the threaded part, which is outside the cistern).

Adjustable to give a 6, 7 or 9 litre flush.

If in the unlikely event that your filling valve fails to close, all Delchem syphons feature an internal overflow which will be able to cope with up to 35 litres/min of excess water.

Toilet cistern internal overflow diagram

As the water level rises so will the level of water within the siphon, until it reaches the ‘spillover’ point. At this point the water within the syphon will cascade down the down-tube and into the toilet pan preventing any further increase in the height of the water within the cistern.

When choosing a Delchem syphon please make sure the bottom of the coloured cap (the ‘spillover’ point) is lower than any existing exit point within the cistern, i.e. lever flush handle, wall fixing points and cistern rim.

Full fitting instructions are printed on the plastic packaging of the unit - you can also download the instructions : Syphon fitting instructions.

WRAS approved and made in the UK.

Product CodeHRC

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