Dave,
you may get some assitance in looking up Grinnell Technical
Bulletin TD107 if possible.
Regards,
Luxie
----- Original Message -----
From: "Ron Greenman" <[email protected]>
To: <[email protected]>
Sent: Sunday, September 13, 2009 8:18 AM
Subject: Re: Grinnell F300 DPV Pressure Info Needed
> Dave,
>
> I didn't think the F-300 dries went that far back.All the forties stuff I
> remember were E-2 models. If the latter the big problem is the brass on
> brass inner seat. They are robust though and last a long time even with
> poor maintenance. They are 6:1 if I recall but are very sensitive in high
> water pressure situations. If it is anD-300 model from the forties it's a
> different series than i'm thinking of and I'll be of no help.
>
> [email protected]
> Sent from my iPhone
>
> Ron Greenman
> ...On the phone
>
> On Sep 12, 2009, at 2:46 PM, "Dave Phelan" <[email protected]> wrote:
>
>> Greetings to all -
>>
>>
>>
>> I am working on a project with several 1940 era Grinnell F-300 DPV's - 4
>> inch. One of the many issues with these systems is the incorrect air
>> settings from the supplied air system and lack of proper air maintenance
>> devices. Does anyone have a table or air pressure / trip point
>> information
>> on these valves?
>>
>>
>>
>> The systems are holding back a fire pump which develops 180 PSI at churn
>> and
>> maintains 125 PSI via the jockey pump. Currently they are providing up
>> to
>> 80 PSI of air in the systems .. Did I mention there were some problems
>> with
>> this project ?
>>
>>
>>
>>
>>
>> Dave P.
>>
>> An AHJ in NJ
>>
>> _______________________________________________
>> Sprinklerforum mailing list
>> [email protected]
>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
>>
>> For Technical Assistance, send an email to: [email protected]
>>
>> To Unsubscribe, send an email to:Sprinklerforum-
>> [email protected]
>> (Put the word unsubscribe in the subject field)
>
>
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
For Technical Assistance, send an email to: [email protected]
To Unsubscribe, send an email to:[email protected]
(Put the word unsubscribe in the subject field)
