Early top mount double check valve

NW Mailing List nw-mailing-list at nwhs.org
Tue Dec 20 07:52:56 EST 2011

The only possibilities I found in the database for drawings are:


Based on the drawing description, neither is for the check valve itself, but they may be close enough to get a reference number on the drawing for the valve.

Dave Stephenson

From: NW Mailing List <nw-mailing-list at nwhs.org>
To: NW Mailing List <nw-mailing-list at nwhs.org>
Sent: Sunday, December 18, 2011 9:42 AM
Subject: Early top mount double check valve

Many of N&W's early version locos (E2, M, M2,
K1, K2, K3, Z1) used a top mount double check valve where the pipes entered the
valve body from the rear, rather than the sides.
 Would anyone know who made this
valve? Has anyone ran across a drawing of this style of check valve in
the archives?
Jimmy Lisle
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