TLV QuickTrap FS Série Manuel D'utilisation page 15

10. Optional Blowdown Valve BD2
• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
10.1 Reassembly of Blowdown Valve
CAUTION
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.
Reassembly
Torque (T) and Distance Across Flats (D)
10.2 Operation Instructions for BD2
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.
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. 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.
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,
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.
BD2 Valve Seat
(Screen Holder)
• 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.
BD2
①
BD2 Valve
F46
BD2
Valve Seat
②
(Screen
F32
Holder)
• 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
②
Valve Stopper Pin
Coat with
Anti-Seize
All connections and sizes
Flanged 15 - 25 mm ( "-1")
Screwed & Socket Weld
15, 20 mm ( ", 1 3 ")
/ /
2 4
Screwed & Socket Weld
25 mm (1")
Screen Holder Gasket
BD2 Valve ①
Discharge Hole
― 14 ―
(T): 30 N ・ m (22 lbf ・ ft)
(D): 17 mm ( 21
(T): 100 N ・ m (73 lbf ・ ft)
(D): 30 mm (1
1 /
2
(T): 60 N ・ m (43 lbf ・ ft)
7 /
(D): 22 mm (
(T) : 150 N ・ m (110 lbf ・ ft)
(D) : 38 mm (1
21 / "). Be
32
/ ")
32
3 / ")
16
")
8
")
1 /
2