Energy-Saving Free Float Steam Trap SS1 Series

TLV Co., Ltd.

Free Float Steam Trap with the Lowest Energy Costs in the World

Automatic bimetal air vent3-point seating andprecision ground float

Specially designed
insulating cover (Optional)

SS1 SeriesFeatures
The TLV Free Float SS1 Steam Trap Series is the world’s #1 energy saving steam trap, reducing steam use and CO2 emissions.
• Precision-ground Spherical Float and Three-point SeatingHigh sealing performance with no steam leakage.
• Stainless Steel Components Ensure High Durability
The body and the valve seat use corrosion and rust-resistant stainless steel, thus maintaining the initial performance for a long time.
• Built-in Bimetal Automatic Air Vent
The built-in air vent responds to temperature and promptly exhausts initial air in the piping, thus making it possible to start
operating the trap immediately after the supply of steam.

TLV International, Inc.
881 Nagasuna, Noguchi, Kakogawa, Hyogo 675-8511, JAPANURL http://www.tlv.com

Overview (Operation)
At start-up the system
is cold, causing thebimetal air vent strip tohold the float off of thevalve seat. This allowsrapid discharge of air
and cold condensate
when steam is firstsupplied to the system.

Float

BimetalValve Seat

Cold Water
AirCondensate
Steam

3. Closed Position

2. Condensate Discharge
If the temperature of thecondensate rises above
90 oC (194 oF), thebimetal air vent strip
allows the valve to close.
The float lifts off the valve
seat as condensate
levels rise, discharging
hot condensate.

Float

BimetalValve Seat

Effects

Up until now, the most commonly used steam traps are disc type, but as the graph below shows,even a new disc trap loses approximately 1 kg/h of steam. Additionally, while in use, each year theamount of steam loss increases. In comparison, the SS1 Series loses less than 0.1 kg/h, and keeps
the loss at that level over an extended period.
Therefore, the steam loss from 100 properly operating steam traps is 360 tons per year, orapproximately 1.44 million yen. The equivalent amount of CO2 emissions saved is approximately 70
t-CO2/year (operating 4,000 hours/year, with steam at 4,000 yen/ton).
In reality there is also steam leakage from failed traps, that makes the effectiveness even greater.

Float

When the condensate flowrate decreases, thelowering level ofcondensate causes thefloat to fall, resting on thevalve seat. A water seal
over the valve seat
prevents steam loss. The
bimetal is still curved, notaffecting the float
movement. As thecondensate flow ratechanges, steps 2 and 3
will repeat in cycles.

BimetalValve Seat

Operation Pressure kg/cm2G

Steam Loss kg/h

1. Start-up Air and Cold Condensate Discharge

108.0
4.0
2.0
1.0
0.6
0.4

3456

78910

Conventional Disc

0.2
SS10.1
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Operation Pressure MPaG

Steam Loss (Condensate Load: 5 kg/h)

Introductory Track Record
Introduced to large steam-using plants worldwide such as oil refineries, chemical, steel, and food.

Joint-recipient, with Nippon Petroleum Refining Co. Ltd. (currently JX Nippon Oil & Energy Corporation), of the Ministry of Economy,
Trade and Industry’s 2009 Energy Conservation Grand Prize for Excellent Energy Conservation “Director General Prize of Agency
for Natural Resources and Energy” for reduction of leaks from approximately 100 thousand steam traps spread across seven plants,
resulting in an estimated savings of 18 ML (113,000 US barrels) of crude oil per year.

A0サイズ （841×1189mm）