19
Disassembly / Reassembly
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
Do not use excessive force when connecting threaded pipes to the
product. Over-tightening may cause breakage leading to fluid
discharge, which may cause burns or other injury.
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way. Failure to
observe these precautions may result in damage to the product or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
Make sure the power supply is OFF before carrying out work on the wiring
or inspections involving disassembly.
If such work is carried out with the power on, there is a danger that
equipment may malfunction or electric shock may occur, leading to
injury or other accidents.
CAUTION
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble.
(Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.)
BT3N/MBT3N/PBT3N: Disassembly/Reassembly of the Steam Trap
Part During
Disassembly During
Reassembly During
Inspection
Orifice
Plug
Remove with a wrench:
dist. across flats - 17 mm
Wrap 3-3.5 turns of sealing
tape around threads and
tighten to the proper torque:
torque - 70 N·m
dist. across flats - 17 mm
—
Cover Bolt Remove with a wrench:
dist. across flats - 13 mm
Coat threads with anti-seize
and tighten to the proper
torque: torque - 40 N·m
dist. across flats - 13 mm
—
Cover
Remove the cover
Replace the cover
—
Cover
Gasket
Remove the cover gasket Replace with a newcover
gasket only if misshapen or
damaged
—
Float
Remove the float
Reinsert the float gently
Check for deformation
or scratches
Screw &
Spring
Washer
Remove the screw & the
spring washer
Coat threads with anti-seize
and tighten to the proper
torque: torque - 1.5 N·m
—
Air Vent
Strip
Remove the air vent strip Be careful not to deform the
strip
Check the tip for
splitting, corrosion, etc.
Orifice
Remove with a socket
wrench:
dist. across flats - 17 mm
Coat threads with anti-seize
and tighten to the proper
torque: torque - 40 N·m
dist. across flats - 17 mm
Check the sealing
surfaces for scratches,
wear, etc.
Orifice
Gasket
Remove the orifice gasket Replace with a new orifice
gasket only if misshapen or
damaged
—
Refer to the sketch shown on the next page.
172-65162M-03 (BT3N/MBT3N/PBT3N) 5 Jul 2013