Free Float® Steam Traps for Main Lines

SS Series/FS Series/SH Series

Free Float® steam traps for main lines that provide a tight seal even under low condensate load conditions.

A typical characteristic of steam distribution mains is that the amount of condensate generated in them is usually quite small. Steam traps used for main drainage have long hours of operation and are often installed outdoors. These traps should therefore have the lowest possible functional steam loss to minimize operating cost over the long term and provide long, reliable service.

The TLV SS / SH / FS series have been designed with precisely these points in mind, offering a range of features that make them ideal for use on steam distribution mains.

Free Float® Steam Trap Series Pamphlet (1439 KB)

Benefits and Features

Energy Conservation

The valve opening is under a continuous water-seal, so no steam can escape through the valve. In the case of small condensate loads, such as in superheated steam lines, the Free Float’s 3-point seating holds the float tightly against the valve opening to ensure that no steam is allowed to escape.

Prevention of Start-up Trouble

The automatic air vent design opens the air vent valve at start-up to discharge any low temperature air inside the system. This prevents air-binding, which can be caused by initial air.

Long Service Life

The spherical Free Float® rotates during operation, allowing any point on its surface to act as the valve seal and thus ensuring long service life.

Application Areas

Steam main lines, steam headers, tracers, etc.

Product Details

Model	Connection	Installation Orientation	Body Material	PMO (MPaG)	TMO (°C)	Discharge Capacity (kg/h)
SS1	Screwed	Horizontal and Vertical Models	Cast Stainless (ASTM A351 Gr.CF8)	2.1	400	205
SS3N / SS3V	Screwed	Horizontal and Vertical Models	Stainless (ASTMA240 Type 316L)	2.1	400	310
	Socket welded
	Flanged
SS5N / SS5V	Flanged	Horizontal and Vertical Models	Stainless (ASTM A240 Type 316L)	3.2	425	800
SS5NH / SS5VH	Flanged	Horizontal and Vertical Models	Stainless (ASTM A240 Type 316L)	4.6	425	240
FS3 QuickTrap®	Screwed	Both Horizontal and Vertical	Stainless (ASTMA240Type316L)	2.1	400	215
	Socket welded
	Flanged
FS5 QuickTrap®	Socket welded or Flanged	Both Horizontal and Vertical	Stainless (ASTM A240 Type 316L)	3.2	400	670
FS5H QuickTrap®	Socket welded or Flanged	Both Horizontal and Vertical	Stainless (ASTM A240 Type 316L)	4.6	425	245
SH3NL	Socket Welded or Flanged	Horizontal	Cast Steel (ASTM A216 Gr. WCB)	4.5	425	310
SH5VL	Socket welded	Vertical pipelines	Cast Steel (ASTM A216 Gr.WCB)	6.5	425	630
SH5NL	Socket Welded or Flanged	Horizontal	Cast Steel (ASTM A216 Gr. WCB)	6.5	425	550
SH5NH	Socket Welded or Flanged	Horizontal	Cast Steel (ASTM A216 Gr. WCB)	8.0	425	240
SH6NL	Socket Welded or Flanged	Horizontal	Cast Steel (ASTM A216 Gr. WCB)	1.4 - 6.5	425	2000
SH6NH	Socket Welded or Flanged	Horizontal	Cast Steel (ASTM A216 Gr. WCB)	10	425	400