Spirax Sarco - Catalogo Agosto 2017

Steam traps

Ball float

ISO 9001

5.5.85

0.5 1 2 3 4.5 7 10

14 21

450

600

780

1 040

1 140

1 350

1 530

1 750

2 300

170

250

380

520

600

780

860

1 140

1 170

460

680

900

1 080

1 300

1 600

1 980

2 050

2 600

120

350

460

600

850

900

1 020

1 200

TI-S02-36

ST Issue 3

Cert. No. LRQ 0963008

Capacity Charts for

FT44, FT46 and FT47 Ball Float Steam Traps

DN15, DN20, DN25

Note: All capacities shown are for the FT44, FT46, and FT47 unless otherwise indicated.

Capacities for the DN40 - DN100 are shown overleaf

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FT44 (formally FT20) - Cast steel GS C25N (TI-S02-14)

FT46 - Austenitic stainless steel 1.4581 (TI-P143-01)

FT47 - SG iron GGG 40.3 (TI-P142-01)

Differential pressure bar (x 100 = kPa)

Additional cold water capacities from the thermostatic air vent under start-up conditions

Capacities shown above are based on condensate at saturation temperature. Under start-up conditions when the condensate is cold

the internal thermostatic air vent will be open and provides additional capacity to the main valve. The following table gives the minimum

additional cold water capacities from the air vent.

P (bar)

1 200

1 300

Minimum additional cold water capacity (kg/h)

DN15, DN20

DN25

up to 21 bar

32 bar only

up to 21 bar

32 bar only

Local regulations may restrict the use of this product to below the conditions quoted.

In the interests of development and improvement of the product, we reserve the right to change the specification without notice.

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