B4006. Steam tracing, spiral wound or parallel tracing, sched 80

Diameter of pipe: DN 50 - DN 250.
Specifications of type A and B see B.4.002.
Variation
Installation of line from manifold valve to condenser valve including bending, welding, testing and strapping. Excluding prefabrication and assembly of manifolds, steam supply and condensate return lines.
Including:
Couplings:
Assembly of trace lines.
Excluding:
Valves;
Steam traps;
Steam supply lines and condensate lines;
Insulation.