Looking for a valve......

[aidan]

Im looking for a valve to automatically drain a water line, when the flow is turned off. This water line is similar to an irrigation line, in a greenhouse. Its a 1/4" line.

When the pressure raises in the water line above 5psi or thereabouts i want the drain valve to close and when the pressure drops below 5psi I want the valve to open.

Does such a valve exist I wonder.

 

[Wisconsonian]

auto drain valve, plenty of them, might have to adapt to a bigger thread size though.

Champion - DV-050 - 1/2'' Brass Drain Valve

Champion - DV-050 - 1/2'' MPT Brass Drain Valve Features Solid brass construction. Used to drain sprinkler lines and prevent damage from freezing water. Reseals at 3 PSI. Fits 1/2'' FPT

cheapsprinklers.com

 

[Fruitbat]

See attached https://www.bhgsltd.co.uk/Products/irrigation/valves-meters--controllers page 10?

 

[Wilksy]

A fluffle valve!?

 

[aidan]

auto drain valve, plenty of them, might have to adapt to a bigger thread size though.

Champion - DV-050 - 1/2'' Brass Drain Valve

Champion - DV-050 - 1/2'' MPT Brass Drain Valve Features Solid brass construction. Used to drain sprinkler lines and prevent damage from freezing water. Reseals at 3 PSI. Fits 1/2'' FPT

cheapsprinklers.com

thanks for that, that looks like what I want, any idea what flowrate that allows when open, 2-3l a min maybe, or would it just be a drip

 

[aidan]

A fluffle valve!?

dont think thats suitable

 

[Oliveau]

A fluffle valve!?

No - it needs a right hand foo-foo valve connected to a left handed dingle sprocket.

 

[le bon paysan]

No - it needs a right hand foo-foo valve connected to a left handed dingle sprocket.

Metric or imperial?

 

[hollister]

Irrigation Flush Valve - 1/2" M thread working pressure 0.1-3.8Bar discharge 4.1L/Hr

 

[aidan]

Irrigation Flush Valve - 1/2" M thread working pressure 0.1-3.8Bar discharge 4.1L/Hr

may be suitable, any link to the product which has that specification, google not finding it for me

 

[hollister]

I've asked for the technical specs of the valve from our supplier.