16
Slide the coupler over the tube ensuring that the
rivet stop has butted up to the tube ends. Using
the Allen wrench, tighten the pins.
DO NOT OVERTIGHTEN!!
Moving between the two screws, tighten each
one in turn ensuring that equal pressure is
applied to both. Complete assembly by drilling
and screwing self tapping retention zip screws.
A standard stainless steel 4” coupling which is
used for all other fixings. Slide the coupler over
the tube ensuring that the rivet stop has butted
up to the tube ends. Using the 5/16” drive,
tighten the bolts.
DO NOT OVERTIGHTEN!!
Type ‘F’ are fixed reflector brackets.
Type ‘S’ are sliding reflector brackets.
Slip the suspension brackets onto the tube
assembly. The fixed suspension point ’H’
shown on the drawings are adjacent to the
burner and secures the first suspension bracket
to the tube with a tube strap. All other
suspension brackets ’G’ shown on the
drawings, have floating suspension points.
Reflectors are fixed at point ’F’ with a reflector
support bracket and reflectors are held in
position with fixing screws. Fixed and sliding
joints alternate along the heater at the spacings
indicated on the individual heater assembly
sheets.
2.2.4 Couplers
The couplers are used for joining radiant tubes
and L bends.
There are two types of couplers for joining
radiant tubes and L bends. A high temperature
stainless steel 4” coupling which is used as
detailed in the table below.
2 x SCREWS TIGHTENED TO FIX REFLECTOR
LEAVE 1/8" MIN. GAP TO ALLOW REFLECTOR TO SLIDE
At this point raise the tube assembly into
position and suspend from previously fixed
chains (Working Load 100lb). Longer tube
assemblies may be raised in more than
one sub-assembly with final tube connection
made in the air.
Model
First coupler
Second coupler
40-100
Standard
Standard
125-150
Hi-temp
Standard
170-200
Hi-temp
Hi-temp
STAINLESS
STEEL
SPACER
SELF TAPPING ZIP
SCREWS
DRAW BAND COUPLING
BOLTS
Self Tapping
Zip Screws
Draw Band Coupling
Bolts
Stainless
Steel
Spacer
