DuraVent DuraStack Installation - Manual (Page 27)

Standard tee with dam
POSITION #2
(T90D2)
NOTE:.DIAGRAMS.&.ILLUSTRATIONS.ARE.NOT.TO.SCALE.
27
GREASE TEE 90° (GT90P) / TEE 90 DAM (T90D) (DIS ONLY)
The.Grease.Tee.90.and.the.standard.Tee.90.with.a.dam.are.used.to.pro-
vide.access.for.clean-out.to.comply.with.NFPA.96.requirements..They.
are.equipped.with.a.1-1⁄2”.(38).high.grease.dam.at.the.access.port..
The.access.port.must.be.closed.with.a.tee.cap.(TC)..The.location.of.the.
access.port.in.the.tee.is.dependent.on.the.orientation.of.the.tee.in.the.
final.installation..Access.port.location.is.coded.as.shown.in.Figure 71.
Figure 71 - Grease tees
Figure 72 - Grease tee Y
Male coupling
Grease dam
Grease tee
POSITION #1
(GT90P1)
Male coupling
Grease dam
POSITION #1
Male coupling
Grease tee
POSITION #2
(GT90P2)
Grease dam
POSITION #2
Male coupling
Grease dam
POSITION #3
Grease tee
POSITION #3
(GT90P3)
Male coupling
Grease dam
Standard tee with dam
POSITION #1
(T90D1)
GREASE TEE Y (DIS ONLY)
1....The.Grease.Tee.Y.(GTY).is.very.useful.where.the.grease.duct.must.
be.accessed.for.clean-out.and.inspection.purposes...See.Figure 72.
2....It.can.be.used.in.place.of.the.Grease.Tee.90.(GT90).and.provides.
excellent.access.clearance.for.clean-outs.
3....Clean-outs.must.be.located.at.all.direction.changes.in.the.grease.
ductwork.
4....Installation.is.the.same.as.standard.tee.
Support
Tee cap (TC)
Grease tee Y