Re: Valve for CO2...

>From: sywang at whale_st.usm.edu (Shiao Y. Wang)
>Date: Wed, 3 Jan 1996 23:23:57 -0600 (CST)
>Subject: Valve for CO2 and goldfish
>I'd like to include a solinoid valve to shut off the flow of CO2 from a 20
>lb tank when the lights are not on. Questions:
>1. Do you put the valve between the tank and the 2-stage regulator or do
>you put it after the regulator & needle valve? If you have it after the
>regulator, won't the pressure slowly build up to a point that exceeds the
>threshold for the solinoid valve?

The valve goes between the regulator and the tank.  As I understand it,
regulator can be had with two functions.  One supplies constant pressure
and the other supplies a constant rate of flow.  If you use a constant 
pressure regulator, the pressure won't build up on the down-line side 
beyond whatever the devices pressure output level is.
>2. What is a good source for purchasing 
>solinoid valves? I'd appreciate specific model recommendations. 

I'd like to know this as well.

>...<goldfish stuff deleted, I have no clue>

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