Hi, does anyone know where i can buy an adjustable pressure switch i can rig up to control my water spray, 0-20 psi should do.

Many thanks

 

maybe what you are looking for.....

if so....


ebay is your friend

http://cgi.ebay.co.uk/Stainless-Stee...item2309f5a59b

 

Hi cheers, that would be perfect if it operated the other way round. Needs to be open and then make the circuit once the boost psi is reached.

Any other ideas anyone?

 

use a transistor or a relay to switch the output

 

I've linked a water spray to the alarm output of a SPA boost/temp gauge in the past and works fine.
The alarm current output fires up a relay coil to energise the spray motor.

The SPA gauge also has a trigger output for temp, so If you can monitor charge temps then you can avoid spraying when the boost is high but the charge temp is low.

http://www.spa-uk.co.uk/design/produ...ils/?objid=208

 

Maplin do them

 

Hi guys thanks for the replies. You say Maplin's, any idea what they are listed under as have just looked and can't find anything

Many thanks