32mm Non-Return Valve - do they exist?

[jonwestuk]

As the above indicates. I have a 32mm waste pipe that I would like a non-return valve fitted to as I live in a flood risk area. Are there any options as I can only see 40mm variants or 32-40mm options.

Thanks,

Jon

 

[jeff the gasman]

Hep v O
http://www.hepvo.com/

 

[just pumps]

The Hep valve above is good if it is only clean-ish water, water from say a washing machine can have soap sediments which in time can stop it fully closing.

 

[Terrywookfit]

How the fook will that prevent flooding !?

 

[jeff the gasman]

How the fook will that prevent flooding !?

They stop back flow but in a flood ?

 

[just pumps]

Strongest one I know off can be found on flea bay in the pump macerator section, listed as HD 32-40mm it is around 5" long and can be Black or White, need a 7mm socket to clamp jubilee clips down to 32mm pipe BUT also needs a good pressure to open the valve to let fluid pass through it so without knowing more re the installation wouldn`t recommend it yet.

 

[Madrab]

Increase to 40mm and use McAlpine's non return then back to 32mm

 

[Agile]

I did buy a 32 mm one to use on a Saniflow outlet as theirs always leak. Don't remember where though.

But that needed a bit of pressure to open.

WMC pumps don't provide much pressure at all !

How the fook will that prevent flooding !?

Flooding can be difficult to stop! This one is near Muzola to the right of the Vic Falls road.

Tony

 

[just pumps]

I did buy a 32 mm one to use on a Saniflow outlet as theirs always leak.

Tony

Hard water area? Problem caused by lack of servicing?

 

[Agile]

At first I thought it was faulty and tried another new one!

 

[Agile]

No, just unable to stand 3m vertical pressure without passing.

 

[just pumps]

Sounds like an early one from the Turboflush range, they were problematic sometimes.

 

[polesapart]

I rather think a 110mm anti flood valve fitted on your main drain would better serve your requirements.

 

[oilboffin]

Yup I'll go along with that mate.