Spirax Sarco - Catalogo Agosto 2017

Steam traps

Ball float

5.5.111 Capacities (in accordance with ISO 7842)

��

DN15, DN20 and DN25

DN40 and DN50

Differential pressure bar (x 100 = kPa)

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

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 Table below gives the minimum additional cold water capacities from the air vent.

Minimum additional cold water capacities from the air vent (kg/h)

P (bar)

0.5

4.5

DN15, DN20 and DN25

460

680

900

1080 1250

1700

2000 2250

DN40 and DN50

460

680

900

1080

1300 1700 1900

2250

Safety information, installation and maintenance

For full details see the Installation and Maintenance Instructions (IM-P603-03) supplied with the product.

Installation note:

2550

3000

2550 2900

The trap is designed for installation with the float arm in a horizontal plane so that it rises and falls vertically, ideally with a drop leg

immediately preceding the trap. Suitable isolation valves must be installed to allow for safe maintenance/replacement. Where steam

traps are fitted in exposed conditions, the possibility of freezing damage may be reduced by thermal insulation/draining/isolation.

For DN15 – DN25 sizes : It is recommended that a strainer, with a screen having 0.8 mm perforations, is installed upstream of the unit

to ensure adequate removal of dirt from the steam system.

For DN40 – DN50 sizes : It is recommended that a strainer, with a 40 mesh screen, is installed upstream of the unit to ensure adequate

removal of dirt from the steam system.

Maintenance note : Maintenance can be completed with the trap in the pipeline, once the safety procedures have been observed. It is

recommended that new gaskets and spares are used whenever maintenance is undertaken.

Caution : The cover gasket and main valve assembly gasket may contain a thin stainless steel support ring which may cause physical

injury if it is not handled and disposed of carefully.

Disposal : No ecological hazard is anticipated with the disposal of this product provided due care is taken.

How to order

Example: 1 off Spirax Sarco DN40 IFT57H-16 ball float steam trap with SG iron body and cover having an integral sensor (SSI) to identify

steam leakage. Flanged connections to EN 1092 PN40. Trap to be fitted with the optional balance and drain connections.

TI-P615-03 ST Issue 5

IFT57 SG Iron Ball Float Steam Trap

Page 4 of 6

with Integral Spiratec Sensor and Flanged Connections

��

�