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Torque (T) and Distance Across Flats (D)
15 - 25 mm (
Inlaid
PTFE
Gasket
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 (See table above for
distance across flats) in place while slowly opening the BD2 Valve ① (17 mm,
Be careful to avoid contact with fluid that 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.
15 - 25 mm (
Screen
BD2
②
Valve Seat
(Screen Holder)
Valve Stopper Pin
11. Product Warranty
1) Warranty Period: one year after product delivery.
2) TLV CO., LTD. warrants this product to the original purchaser to be free from defective
materials and workmanship. Under this warranty, the product will be repaired or replaced at
our option, without charge for parts or labor.
3) This product warranty will not apply to cosmetic defects, nor to any product whose exterior
has been damaged or defaced; nor does it apply in the following cases:
1. Malfunction due to improper installation, use, handling, etc., by other than TLV CO., LTD.
authorized service representatives.
2. Malfunctions due to dirt, scale, rust, etc.
3. Malfunctions due to improper disassembly and reassembly, or inadequate inspection and
maintenance by other than TLV CO., LTD. authorized service representatives.
4. Malfunction due to disasters or forces of nature.
5. Accidents or malfunctions due to any other cause beyond the control of TLV CO., LTD.
4) Under no circumstances will TLV CO., LTD. be liable for consequential economic loss or
damage or consequential damage to property.
" - 1")
1
/
2
(T): 30 N
m (22 lbf
·
1
(D): 17 mm (
21
/
32
(T): 80 N
m (59 lbf
·
2
(D): 38 mm (
1
/
1
2
• 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
" - 1")
1
/
2
Screen Holder
Gasket
BD2 Valve ①
Discharge Hole
32 - 50 mm (
ft)
·
")
ft)
·
")
32 - 50 mm (
Screen
③
Screen
Holder
Valve
Stopper Pin
̶ 12 ̶
" - 2")
1
/
1
4
(T): 30 N
m (22 lbf
·
·
1
(D): 17 mm (
")
21
/
32
(T): 60 N
·
m (43 lbf
·
2
(D): 22 mm (
")
7
/
8
(T): 300 N
·
m (220 lbf
3
(D): 54 mm (
")
1
/
2
8
〜 〜
.
1 N
m
10 kg
21
/
").
32
" - 2")
1
1
/
4
Screen Holder
Gasket
BD2 Gasket
BD2 Valve
Seat ②
BD2 Valve ①
Discharge Hole
ft)
ft)
·
ft)
.
cm
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