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V2: Fully open the outlet valve. Slowly open the inlet valve and check all threaded parts to
make sure there are no leaks. If there are no leaks, turn the handwheel further until the valve is
fully open.
V1
Connector
Bolt
Outlet
Blowdown
Valve BD2
Blowdown Valve Operation
The BD2 blowdown valve uses internal pressure to blow out condensate or steam (and scale/dirt
in the condensate or steam) from inside the unit to atmosphere. It can be used, not only during
maintenance, but also to perform visual inspections of steam trap operation.
Note: The V1-RL and V2-RL are not equipped with BD2 blowdown valves.
CAUTION
1. With two wrenches, firmly hold the BD2 valve seat (22 mm,
the BD2 valve (17 mm,
through the hole in the center of the BD2 valve as the valve opens. Do not remove the
blowdown valve from the unit.
Note: Do not leave the vicinity while the blowdown valve is in the open position.
2. Close the BD2 valve and tighten to a torque of 30 N ・ m (22 lbf ・ ft), and confirm that there is no
leakage. If leakage continues, dirt or scale may be preventing the valve from sealing. Open and
blow out again, then try to close once more.
Handwheel
Inlet
(inlet valve)
(outlet valve)
• Always wear eye protection and heat-resistant gloves when operating
the blowdown valve. Failure to do so may result in burns or other injury.
• When operating the blowdown valve, stand to the side well clear of the
outlet to avoid contact with internal fluids that will be discharged.
Failure to do so may result in burns or other injury.
• Do not use excessive force when opening the blowdown valve. Such
force may break the pin equipped as a valve stopper, causing a
blowout from internal pressure resulting in burns or other injury.
21
/
" ). Be careful to avoid contact with fluid that will be discharged
32
― 11 ―
V2
Outlet
Handwheel
Blowdown
Valve BD2
7
/
" ) in place while slowly opening
8
BD2 Gasket
BD2 Valve Seat
7
/
(22 mm,
" )
8
Valve Stopper Pin
BD2 Valve
21
/
(17 mm,
" )
32
Discharge Hole
Connector Bolt
Inlet
Handwheel
(inlet valve)
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