TLV BD800, Инструкция по эксплуатации

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172-65694MA-01 (BD800) 25 Jul 2018
14
Troubleshooting
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury
or damage to property and equipment.
WARNING
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
When the product fails to operate properly, use the following table to locate the
cause and remedy.
Problem Cause Remedy
Fluid is leaking from
the outlet (even)
when the valve is
closed The valve stem is not tightened
sufficiently
・
Place the spanner on the flat
surfaces of the valve stem and
tighten it to the proper torque
(16 N
⋅
m (12 lbf
⋅
ft)
・
Tighten the spanner cap with a
spanner to the proper torque
(16 N
⋅
m (12 lbf
⋅
ft)
The sealing surfaces of the valve
seat and valve stem are damaged
or clogged with rust and scale
(erosion, corrosion, etc.), clean
those surfaces Clean the valve seat and valve
stem; if leakage does not stop after
cleaning, replace with a new valve
seat and/or valve stem (contact
TLV)
Fluid is leaking
from the gland
section The gland holder is loosened Retighten the gland holder, clean
or replace with new parts (contact
TLV)
The valve stem
does not move The valve stem is clogged with
rust and scale Clean or replace with a new valve
stem
Fluid is leaking from
a place other than
the outlet
・
Fluid is leaking from between
the bonnet and body
・
Gasket deterioration or damage
・
The gasket sealing surfaces of
the body and bonnet are
damaged or clogged with rust
and scale
Replace with new gasket(s)
Improper tightening torques were
used Tighten to the proper torque
The valve stem and
the valve seat
frequently become
damaged Water hammer has occurred
・
Check whether the valve stem
is over-tightened; if the valve
stem is deteriorated or
damaged, replace with a new
valve seat and/or valve stem
(contact TLV)
・
Check and correct the piping
NOTE: When replacing parts with new, use the parts list for reference, and replace with parts
from the maintenance kit, repair kit, etc. Please note that replacement parts are only
available as part of a replacement parts kit.