Series Premier VS-VH
Page 21
LT135 Dec 2019
A - Radiant Line Tubes
All Combustion Tubes are heat-treated aluminized steel tubes. The remaining Radiant Tube length can be either
hot rolled or heat-treated aluminized depending on the system design.
1. Locate hanging chain at predetermined points in the structure using methods as shown in Figure 10. The first 2
hanging points are approximately 7.5 ft. (2.3 m) apart to fully support each end of the first Tube. Thereafter
spacing of 10 ft. (3 m) is acceptable, i.e. one hanging point per Tube. Ensure that Reflector Hangers located on
a Combustion Tube will be within 8” (20 cm) of the Burner. Ensure that the mounting height allows a downward
slope of ¼” per 10 ft. (7 mm per 3 m) towards the Vacuum Pump location.
2. Welded link chain with a working load limit of at least 500 lbs. (230 kg) is recommended. The suspension
mechanism must allow for lateral expansion of the Tubing. A minimum length of 12” (30 cm) of hanging chain is
recommended. Using turnbuckles between the chain and the Reflector Hanger allows for easy height
adjustment later.
Figure 9: Radiant Line System - Component Relationships
