– Piping: Single layer pipe covering
without integral jacket shall be held in place with wire
for pipe 300 mm diameter or less and banding and wing seals
on larger pipe. Double layer staggered joint pipe covering
without integral jacket shall have the first layer held in
place with wire and the outer layer held in place with banding
and wing seals. – Fittings:
Insulate fittings 75mm diameter and less with insulating
cement or flexible insulation secured in place with 1.62
mm stainless steel wire and finished with insulating cement
to thickness of adjacent pipe covering. Insulate fittings
over 75 mm diameter with sections of pipe covering mitred
to fit tightly with each mitred section secured in place
with a minimum of one loop of 1.62 mm stainless steel wire.
All voids and cracks to be filled with insulating cement.
– Valves,
Flanges: Insulate valve bodies and flanges with fitted
oversized pipe covering, or mitred blocks to thickness
of adjacent pipe covering. Expansion joints, steam trap
assemblies, unions, slag pocket drain piping & valves,
safety relief valves and orifice flanges shall be left
uncovered. (See Note 1).
– Insulation Termination Points:
Insulation shall be terminated 75 mm from fittings to provide
working
clearance, and bevel insulation at a 45 degree angle. |
