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STEAM TRAP SIZING

Traps should be sized based on the safety factors shown, times the maximum condensate load of the apparatus served, with the following system differentials:

LPS (Less than or = to 5 PSIG) ½ PSIG

LPS (15 PSIG Max) 2 PSIG

MPS (60 PSIG Max) 15 PSIG

MPS (100 PSIG Max) 30 PSIG

MPS (150 PSIG Max) 40 PSIG

Type of Equipment Safety Factor

Coils, (Blast, Unit heater), Air Heaters, Dryers (a) Using Inside Air 2

Coils, (Blast, Unit heater), Air Heaters, Dryers (b) Using Outside Air 3

Kilns, Drying Room Ovens, Steam Mains 2

Paper Machines, Drying Cylinders, Autoclaves, Platen Presses 3

Laundry Ironers, Sterilizers 3

Heat Exchangers, Jacketted Kettle, Hot Water Heaters 2

SteamValve.Com

LPS (Less than or = to 5 PSIG)	½ PSIG
LPS (15 PSIG Max)	2 PSIG
MPS (60 PSIG Max)	15 PSIG
MPS (100 PSIG Max)	30 PSIG
MPS (150 PSIG Max)	40 PSIG

Coils, (Blast, Unit heater), Air Heaters, Dryers (a) Using Inside Air	2
Coils, (Blast, Unit heater), Air Heaters, Dryers (b) Using Outside Air	3
Kilns, Drying Room Ovens, Steam Mains	2
Paper Machines, Drying Cylinders, Autoclaves, Platen Presses	3
Laundry Ironers, Sterilizers	3
Heat Exchangers, Jacketted Kettle, Hot Water Heaters	2