17
Elbows and 90° Inspection Elbows
For offset information on standard elbows, please refer to p.18
Please note that 90° Inspection bends may be incorporated into a connecting flue pipe arrangement on all fuels, please
refer to National Annex of BS EN 15387-1 for specific guidance re use on solid fuel applications.
In cases of top mounted stoves, a minimum vertical height of 600mm from the appliance is recommended prior to any
change of direction in the flue pipe.
On condensing appliances 87° bends must be used rather than 90° bends where required in order to ensure correct
run off of condensates.
93˚ Tee
including Drain Cap
This component must be used in place of a 90° tee to connect from a connecting
flue pipe to the vertical System Chimney on condensing systems to ensure that
condensate can drain down through the system to a drain point. This component
is installed as per a standard pipe section.
135° Tee including Drain Cap
There are 2 versions of the 135˚ tee available. The condensing version has a fully
welded liner, so please ensure, prior to installation on a condensing appliance, that
you have the fully welded version to hand.
This component may be used in combination with a 45° elbow to connect from a
connecting flue pipe to the vertical system chimney. It is installed as per a standard
pipe section and provides the least resistance to the flow of the flue gases. Please
note that there are no barbs on the female collar in order to allow for the tee to
be positioned at the correct angle. It is supplied complete with a drain plug.
135˚ Tee
Int Ø
Ext Ø
A
B
C
Int Ø
Ext Ø
135˚
A
93˚ Tee
Int Ø
Ext Ø
B
C
Int Ø
Ext Ø
93˚
Int Ø
Ext Ø
A
(mm)
B
(mm)
C
(mm)
100
150
285
155
121
200
256
396
201
177
125
180
297
158
136
150
200
322
166
147
180
235
356
180
167
Int Ø
Ext Ø
A
(mm)
B
(mm)
C
(mm)
100
150
325
254
254
200
256
444
351
351
125
180
336
259
259
150
200
365
283
283
180
235
414
326
326
