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ckaraman34
Member

Join Date: Jan 2009
Posts: 5

OS&Y Valve Approved by FM

02/04/2009 7:38 AM

Hi All

I have a big trouble about fire line that it's required use OS&Y valve approved by VL\FM to Fire Tank outlet or not.

Now I m in Turkey. We are applying NFPI 20 specification and completed the job with OS&Y valve but not approved by FM. But according to insurance company it should be also approved by FM valve.

When I viewed the specification, I didn't coincide any rule or rules about that.

Now I need your help. If anybody knows about that please send me with rule or rules defining in specification.

Thank you so much now.
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Don103
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Hobbies - Musician - Guitar and Banjo Engineering Fields - Construction Engineering - Project Engineer Engineering Fields - Piping Design Engineering - New Member Popular Science - Evolution - New Member Popular Science - Cosmology - New Member

Join Date: Feb 2009
Location: Minneasota
Posts: 8
#1

Re: OS&Y valve approved by FM

02/04/2009 9:53 AM

FM being Factory Mutual, the OS&Y valve needs documentation of FM from your supplier. Contact them.
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Randy Conner
Commentator

Join Date: Feb 2008
Posts: 69
Good Answers: 2
#2

Re: OS&Y valve approved by FM

02/04/2009 11:11 AM

I suspect there are multiple vendors available for such valves that have such third-party listings and approvals (based on testing and reviews etc. for the service), particularly for commonly small diameter exposed fire lines.

I believe you can obtain a listing CD e.g. from Factory Mutual that documents all such approvals -- one vendor example is e.g. http://www.acipco.com/afc/.
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Anonymous Poster
#3

Re: OS&Y Valve Approved by FM

02/04/2009 4:13 PM

What does OS&Y stand for?
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artonpaper
Active Contributor

Join Date: Apr 2007
Location: Los Angeles, CA
Posts: 19
#4
In reply to #3

Re: OS&Y Valve Approved by FM

02/04/2009 10:58 PM

Outside Stem & yoke. It is a valve design that exposes the stem and the bonnet style.
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Anonymous Poster (1); artonpaper (1); Don103 (1); Randy Conner (1)

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