Water valve that can handle 120C temp?

[mark248]

i am making a project where we are making a mixture in a tank and then have to get it out from the electric valve but the thing is that solenoid valve that i've seen are made of brass or most likely cheap plastic and they surely can't handle the constant 120 C temperature because the mixture will always be hot.
and other problem is that we need a valve with like 2 inch head so that our mixture can easily passed from it we dont need the typical 0.5 inch ones.


some of my other concerns are :

is brass safe for passing a hot drinking water from it ?
is there anyway that we can use manual valve and put motor on its open handle and remove the typical handle ?

some suggestions would be very appreciated

 

[pennpiper]

Mark248
120 C = 248 F, so you are talking about STEAM. Is that correct?

Sometimes its possible to do all the right things and still get bad results

 

[mark248]

i mentioned 120 C because as valve is gonna be below the tank near the water heating element so temperature below is gonna be much higher than the rest of the tank so that's why to be sure i mentioned 120C but its more like 95 to 100

 

[moltenmetal]

They do sell steam solenoid valves- Burkert sells them but so do others. They will equally handle boiling water, assuming you manage the vaporization which will occur when you open the valve.

 

[mark248]

yes i did manage that vaporization but the steam solenoid valves are very expensive and i dont seem to find one with 2 inch head.

 

[gerhardl]

A competitor to Bürkert with a wide range of types, sizes and pressure ranges are Norgren - Buschjost.

http://www.buschjost.com/service/downloads-products/flyer-and-catalogues/

Is '2-inch head' an increased pressure requirement to reduce cost, or not a '2-inch connection'?

Price seems to be your main concern. Please give all details on fluid, pressure, flow and any other limitation or requirement (price?), and a better advice can be given. Voltage or power limitation? Motor operated valves in smaller sizes will generally cost more than solenoid valves, but not always.

I take it that pneumatic solutions can not be used?

Are you sure the fluid is low viscosity, particle free and not crystalizing when drying?

A standardized, general, factory certification for allowance for drinking water is common for quality European producers if brass alloys are used. This is available without cost from the two producers mentioned.