Re: Re: Spiral wound gasket with Flat face flange

From: <shakilsharif>
Date: Sat Dec 24 2005 - 08:32:00 EST

where i get this AWWA standards?
----- Original Message -----
From: tomcruz55 <tomcruz55@yahoo.com>
To: <PipingDesign@yahoogroups.com>
Sent: Saturday, December 24, 2005 10:39 AM Subject: [PipingDesign] Re: Spiral wound gasket with Flat face flange

Checkout AWWA Standard C207 for steel pipe flanges for waterworks service. In Section 2 Material, the proper gasket to be used is specified. Ive got an old copy of C207, the gasket recommended is gasket ring - and I normally specify a 1/8 inch thick nonasbestos with NBR binder for flat faced (im used to Class E) for water service .

Normally sprial wound gasket such as those made by flexitalic are used with RF type flanges. John H. Bickford has written two excellent books related to gasketed and bolted joints.

Like for example in his book Gaskets and the GAsketed JOints, you may find Chapter 11 interesting - Bolted Flanged Connections with Full-Face Gaskets.

• In PipingDesign@yahoogroups.com, animesh.singh@r... wrote:
  >
  > Dear Friends
  >
  > In our new project we are planning to repeat the existing plant
  layout/ PDS
  > model. earlier we have used CAF gasket with AWWA std flange(flat
  face) in
  > the water service.
  > Now, as the CAF gasket is not environment & Health friendly we are
  planing
  > to replace it with Spiral wound graphile filled gasket keeping the
  flange
  > as AWWA -C207 class D std - Flat face only, Serrated spiral finish
  >
  > What you people suggest, what problem you envisage using this
  combination.
  > Is any std says about this combination.
  > Pls note: AWWA says to use full face gasket, no where it is given
  that we
  > can not use the Spiral wound gasket
  >
  > Animesh Singh
  > Piping -Project
  > Reliance Engineering associates limited
  > Mumbai, India
  >
  >
  >
  > DAKC, C block, Gr floor
  >
  > Ph : +91-22-3038 1604
  > M : +91-93229 45789
  > Fax : +91-22-3038 1699
  >
  

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Yahoo! Groups Links Received on Sat Dec 24 08:32:00 2005