Flowserve BK 15 - Manual (Page 11)

11
■ Screwdriver 5.5/100 mm to DIN 5265, form A
■ Spanner A.F. 36 mm to DIN 3113, form B
■ Torque spanner 20 – 160 Nm to DIN ISO 6789
Tools
The steam trap is under pressure at start-up and during operation.
When loosening the union nut hot water or steam may escape. This
presents the danger of severe burns and scalds to the whole body.
The steam trap becomes hot during operation. This presents the risk of
severe burns to hands and arms. Installation and maintenance work should
only be carried out at room temperatures.
Always wear industrial gloves when adjusting the regulator.
Commissioning
The regulator of the BK 15 is adjusted at our factory to close steam-tight and open as
soon as condensate is formed. If a certain undercooling and, consequently, banking-up
of condensate is required for e. g. a heating process, the trap setting can be modified at
start-up and during operation:
1. Take notice of the danger note. Slacken union nut (one turn) and turn adjustment
screw clockwise with a screwdriver. 1/8 turn corresponds to approx. 4 K (degC)
change in discharge temperature. Starting from factory setting you can turn the
adjustment screw up to 1.5 turns to the right.
2. If required you can also adjust a controlled steam flowrate. Starting from factory
setting turn the adjustment screw for this purpose 1.5 turns to the left.
3. Tighten union nut with a max. torque of 30 Nm.
Adjust Regulator (Undercooling, Controlled Steam Flowrate)
A
The regulator of the BK 15 is adjusted at our factory to close steam-tight and open as
soon as condensate is formed. If necessary, the factory setting can be restored as
follows:
1. To depressurize the steam trap cut off steam and – in the case of back pressure –
condensate line(s). Let the trap cool down to room temperature.
2. Undo union nut and turn adjustment screw with a screwdriver clockwise until a
resistance is felt.
3. Turn adjustment screw 3 turns anticlockwise. The steam trap will now discharge
condensate with virtually no banking-up (factory setting).
4. Tighten union nut with a max. torque of 30 Nm.
Restore Factory Setting
Make sure that all flange bolts are firmly fastened, ensuring tight shut-off.
BK 15
Danger
A
E
E
E
E
A
A
A
E