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Protecting Science - One Sprinkler at a Time
-Original Message-
From: rfletc...@aerofire.com [mailto:rfletc...@aerofire.com]
Sent: Friday, August 24, 2012 1:36 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
I'm not sure NFPA
Sprinkler at a Time
-Original Message-
From: Johnson, Duane (NIH/OD/ORS) [C]
Sent: Monday, August 27, 2012 7:35 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
If leaving the valve in the wrong position will impair the operation of the
sprinkler system
:48 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
And...
NFPA 20 2010:4.16.2 Supervised Closed.
The test outlet control valves shall be supervised closed.
Duane Johnson, PE
Program Manager
Division of the Fire Marshal (Support Contractor) Office of Research
...@rowesprinkler.com
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of
rfletc...@aerofire.com
Sent: Monday, August 27, 2012 9:45 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
My
@firesprinkler.org
Subject: RE: Supervised vales in pump room
My thanks to everyone for the information. This forum is awesome.
Ron Fletcher
Aero - Phoneix
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org [mailto:
sprinklerforum-boun...@firesprinkler.org] On Behalf Of Johnson
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
My thanks to everyone for the information. This forum is awesome.
Ron Fletcher
Aero - Phoneix
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org [mailto:
sprinklerforum-boun...@firesprinkler.org
Good evening. There is more praxis tnah code in this issue. Padlock and
chain supervising is quite accepted. So, there is no a mandatory
requierement regard this issue.
2012/8/24 rfletc...@aerofire.com
Here is an easy one for Friday. Is there a general requirement that all
valves in a pump
There are valves that are wired for normally closed but you can switch the
wires on a regular valve around but it won't go into supervisory in the number
of turns required per code.
On my jobs, all with the same AHJ, we always either swap the wires and lock
them open, or just lock them only.
There is no blanket requirement, NFPA 25 2010 4.16 covers what valves must be
supervised, personally I think it's rather poorly worded, but if you read
through the whole standard my impression is the intent of 4.16.2 Supervised
Closed. The test outlet control valves shall be supervised closed.
The phrasing is to the effect supply water to systems. If it's normally
closed it can't be a supply and wouldn't need supervision. Similar to jockey
pump valve, they don't feed the systems during a fire.
For example IFC 903.4 Sprinkler system supervision and alarms.
All valves controlling the
From: sprinklerforum-boun...@firesprinkler.org on behalf of Morey, Mike
Sent: Fri 8/24/2012 1:21 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
There is no blanket requirement, NFPA 25 2010 4.16 covers what valves must be
supervised
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
There is no blanket requirement, NFPA 25 2010 4.16 covers what valves must be
supervised, personally I think it's rather poorly worded, but if you read
through the whole standard my impression is the intent of 4.16.2
on behalf of
rfletc...@aerofire.com
Sent: Fri 8/24/2012 1:35 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: Supervised vales in pump room
I'm not sure NFPA #25 would apply to a new installation. NFPA 20 requires the
pump enclosure to be supervised or controlled but I found nothing
@firesprinkler.org
Subject: RE: Supervised vales in pump room
Excuse the typo of lock a valve like this open, I meant closed obviously.
Also the supervision of flowmeter valves is mentioned again in the pump
installation checklist
Mike Morey, SET, CFPS
Sprinkler Designer
BMW Constructors, Inc.
O
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