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10. Options
The options shown below are available for this product on request.
Drain Plug (standard: without drain plug)
10.1 Reassembly of Blowdown Valve
1. Clean the trap, BD2 threads, and sealing surfaces, and
apply a small amount of anti-seize.
2. Replace gasket.
3. Carefully place the gasket over the threaded portion,
and position carefully so that it does not
become off-center.
4. Fasten to the steam trap with the proper torque.
Torque (T) and Distance Across Flats (D)
10.2 Operation Instructions for BD2
Note: Do not leave the vicinity while the blowdown valve is in the open position.
CAUTION
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.
• 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.
1. With two wrenches, firmly hold the BD2 Valve Seat (Screen Holder) 2 (22 mm,
while slowly opening the BD2 Valve 1 (17 mm,
will be discharged through the hole in the center of the blowdown valve as the valve opens.
2. Close the BD2 Valve 1 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 prevent the valve from sealing. Open and
blow out again, then try to close once more.
2
Part Name
1
BD2 Valve
F46
BD2
Flanged 15 to 25 mm ( " to 1")
Valve Seat
2
Screwed & Socket Welded
(Screen
15, 20 mm ( ",
F32
Holder)
Screwed & Socket Welded
25 mm (1")
• 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
Screen
BD2 Valve Seat
(Screen Holder)
Valve Stopper Pin
Torque
N·m
Drain Plug
35
BD2
All connections and sizes
/
1
2
/
/
")
1
3
2
4
/
"). Be careful to avoid contact with fluid that
21
32
Screen Holder Gasket
1 BD2 Valve
Discharge Hole
̶ 18 ̶
Distance Across
Flats
(lbf·ft)
mm
(26)
21
(
13
Coat with
Anti-Seize
(T): 30 N ・ m (22 lbf ・ ft)
(D): 17 mm (
/
")
21
32
(T): 100 N ・ m (73 lbf ・ ft)
(D): 30 mm (1
/
3
16
(T): 60 N ・ m (43 lbf ・ ft)
/
(D): 22 mm (
")
7
8
(T) : 150 N ・ m (110 lbf ・ ft)
(D) : 38 mm (1
/
1
2
/
") in place
7
8
(in)
/
)
16
")
")
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