Kan. Admin. Regs. § 49-52-10 - Stop valves and check valves
(a) If a boiler
can be closed off from the heating system by closing a steam stop valve, there
shall be a check valve in the condensate return line between the boiler and the
system.
(b) If any part of a
heating system can be closed off from the remainder of the system by closing a
steam stop valve, there shall be a check valve in the condensate return pipe
from that part of the system.
(c)
If multiple steam boilers with manholes are functionally connected to each
other through a manifold, each boiler shall have two stop valves with a free
blow drain between the two valves.
Notes
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