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Nupro Needle Valves

To: Aquatic-Plants at actwin_com
Subject: Nupro Needle Valves
From: George Booth <booth at hpmtlgb1_lvld.hp.com>
Date: Wed, 10 Sep 1997 09:40:02 -0600
In-Reply-To: Your message of "Wed, 10 Sep 1997 03:48:19 EDT." <199709100748.DAA27108 at acme_actwin.com>

> Date: Tue, 9 Sep 1997 16:11:48 -0700
> From: "Frank I. Reiter" <FIR at istar_ca>

> I discovered, to my dismay, that the fully closed position on the
> Nupro valves yield to many bubble per second to count at 10 psi, and I
> have had to resort to playing (tediously) with the (rather course)
> shutoff valves to get it down to a couple bubbles per second.

Are these the model B-4MG2 valves?

Odd. I have our CO2 regulator set for around 20 psi and the B-4MG2
valve can stop the flow completely and still have some "turns" left to
go. 

> I see these valves recommended quite frequently.  Has nobody else
> encountered this problem?

Not me.

George

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