Table of Contents
Advertisement
LOCATION OF SUPPORTS
Supports can be used in different combinations to secure grease duct in
place. See Figure 5, 6 and 7 for typical support and guide locations.
VARIABLE LENGTH SUPPORT
To prevent the LV from sagging, it is recommended that the duct section
adjacent to a LV is supported or guided. See Figure 43 for typical support
locations for Variable Length. When necessary, properly guide the Variable
Length (LV) by installing a Heavy Duty Wall Guide (WGHD) or any support
immediately on the next (upstream) section.
Figure 43: - Typical Installation locations for the Variable Lengths
NOTE: LV overlapping joints are not intended to support any
weight in the vertical position. The inlet and outlet ends must
each be supported.
TEE SUPPORT
The Tees must be supported properly to protect them from bending. It can
be done by means of Anchor Plate (AP), Anchor Plate with Length (APL) or
Heavy Duty Wall Support (WSHD)
When a tee is used at the base of the riser, the preferred location for sup-
port is above the Tee, thus suspending the Tee. See Figure 44.
A Heavy Duty Wall Support (WSHD), a Ventilated Anchor Plate (APV) or a
Ventilated Anchor Plate with Length (APVL) can be used to support the
TEE.
Figure 44: - Suspended Tee Support
NOTE: In the case of an AP, Flange joint of duct and Tee are to be
secured in place between the Clamp Rings. If it is not possible to
suspend the Tee, it may be supported with a base
(a structural steel stand).
When a Tee is used as a supported Tee, A Drain Tee Cap (DTC) must be used
at the bottom of the Tee for draining
21
Advertisement
Table of Contents
