172-65122MA-04 (L BD2) 9 Mar 2017
13
Options
With Blowdown Valve (TLV BD2)
Always wear eye protection and heat-resistant gloves when operating
the blowdown valve. Failure to do so may result in burns or other injury.
CAUTION
When operating the blowdown valve, stand to the side well clear of the
outlet to avoid contact with internal fluids that will be discharged.
Operate the valve slowly and surely, taking care to avoid the area from
which internal fluids are discharged and any fluids deflected off piping
or the ground etc. Failure to do so may result in burns or other injury.
CAUTION
Do not tighten the BD2 valve or the BD2 valve seat in excess of the
appropriate tightening torque. Over-tightening may cause breakage to
threaded portions, which may cause burns, other injuries or damage.
CAUTION
Do not excessively loosen the BD2 valve when opening the blowdown
valve. The valve stopper pin installed to prevent the BD2 valve from
being removed may break and internal pressure may result in the BD2
valve being blown off, leading to injuries, damage and fluid discharge,
causing burns.
CAUTION
Configuration
Screen Holder Gasket
BD2 Valve Seat
(Screen Holder)
Screen
Valve Stopper Pin
BD2 Valve
Discharge Hole
TLV Blowdown Valve: BD2
The BD2 Blowdown Valve, installed in the screen area of the body, uses the trap’s
internal pressure to blow any condensate, steam, dirt or scale accumulated around the
screen area out to atmosphere.
BD2 Blowdown Valve Operation
1. The BD2 valve is in the closed position when the BD2 is shipped from the factory.
Before attempting to operate the BD2, reconfirm that the BD2 valve is still in the
closed position. Locate the blow outlet and, during operation, stand to the side and
well clear of it, as the jet of condensate or steam could cause burns.
2. Remain in the area the entire time the BD2 valve is in the open position. Before
opening the BD2 valve, grip the BD2 valve seat with a wrench and hold firmly in
place so that it will not rotate when the BD2 valve is loosened. Grip the BD2 valve
with another wrench and slowly loosen. Condensate and steam will discharge from
the blow outlet in a jet stream. Be careful not to loosen the BD2 valve so far that it
becomes removed from the BD2 valve seat. (If the valve stopper pin becomes
damaged, large quantities of steam will be discharged in a jet stream.)
