M&G DuraVent DuraStack® - Manual (Page 24)

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SECtIon E - tErmInatIonS, StartIng
aDaptorS, DraIn LEngtH anD rELIEF
VaLVE
StartIng aDaptorS
Single Wall adaptor (SWa)
1. The Single Wall Adaptor is used as an
appliance connector. It is designed to be
clamped with a Retaining Band and a locking
band over a shank type flue gas outlet.
2. First, slide the retaining band over the
appliance outlet and tighten it with supplied
bolt. (See Figure 37).
3. Add a bead of sealant about 1/8” on the
flange of the retaining band and one on the
flange of the adaptor (SWA) and mate those
two flanges together. Be sure to fill all the
gaps with S-2000 sealant. (See Figure
38 and Figure 39).
4. Tighten the Locking Band to hold and seal
the adaptor in place. See Figure 40 for
typical installation.
anSI Flange adaptor (Fa)
1. The Flange Adaptor (FA) is intended for use
as a connection to a class 125 or 150 ANSI
pipe flange.
2. This type of connection requires a flange
gasket and bolt set provided by the installer.
The gasket and bolts are typically sold by
pipe, valve and fittings houses as ‘NBG’ set.
Figure 41 illustrates a typical installation.
3. An outer band with insulation is included
to close the installation.
Flanged adapter (FHa)
1. The Flanged Adaptor (FHA) is used to
connect the DIS / DAS chimney to flanged
appliance outlets other than those with ANSI
pipe flanges.
2. The adaptor is designed to sandwich an 1/2
inch flange between two half ring and the
appliance flanged outlet. The Flange Adaptor
comes with beam clamps to clamp the FHA
to the appliance. See Figure 42.
Figure 37
Figure 37a
Figure 38
Figure 38a
Appliance Outlet
Insert and Tighten
the Band in Place
Insert and Tighten
the Band in Place
Inlet
Apply Bead
of Sealant
Apply Bead
of Sealant
Inlet
Appliance Outlet