Thermodynamic Steam Traps

Spirax Sarco thermodynamic steam traps combine reliability, simplicity, and high efficiency, with a maximum operating pressure of up to 250 bar g. The reasons why Spirax Sarco TD thermodynamic steam traps are used worldwide include the following features:

• Robust and simple body structure, lightweight, and a wide operating pressure range.
• Only one moving part - a hardened stainless steel disc, which provides a long service life and also functions as a check valve.
• Intermittent discharge of condensate and rapid, tight closure to ensure no leakage.
• Can withstand superheat, water hammer, freezing, and corrosive condensate.
• The distinct "click" sound when the disc falls into the seat makes it easy to monitor performance.
• Works perfectly in any installation position.
• Available in various models with threaded, flanged, and welded connections.

These features make it a highly versatile and reliable thermodynamic steam trap. Spirax Sarco TD thermodynamic steam traps are the ideal choice for a wide range of applications such as steam mains, steam tracing lines, jacketed pipes, coil-heated storage tanks, vats, and multi-roll flat ironers. When TD traps are installed outdoors in severe weather conditions, it is recommended to insulate the valve or fit an insulating cover on the cap to reduce heat loss and the effect of weather on the cycle frequency, thereby reducing wear and extending service life. For applications where air binding may occur, thermodynamic traps with anti-air-binding discs or separate air vents can be selected.

Spirax Sarco offers a complete range of thermodynamic steam traps to meet the needs of different users. The main products include: TD16 / TD16F, TD25, TD32F, TD42L/H, TD42S2, TD52M, BTD52L, TD46, TD62M, TD120, TD120M, etc. Among them, the BTD52L is suitable for clean steam systems, while the TD46 has a built-in air venting valve and comes standard with an insulating cover.

Specifications

Model	Size	Min Working Press. (bar g)	Max Working Press. (bar g)	Max Allowable Backpressure	Body Design Press.	Body Material	Connection
TD10M	1/2", 3/4", 1"	0.25	10	80%	PN16	Stainless Steel	Threaded
TD16	1/2", 3/4", 1"	0.25	16	80%	PN25	Stainless Steel	Threaded / Flanged
TD25	1/2", 3/4", 1"	0.25	25	80%	PN40	Stainless Steel	Threaded / Flanged
TD32F	15, 20, 25	0.25	32	80%	PN40	Stainless Steel	Flanged
TD42L/H	3/8", 1/2", 3/4", 1"	0.25	42	80%	PN63	Stainless Steel	Threaded
TD42S2	1/2" LC, 3/4" LC, 1" LC, 1/2", 3/4", 1"	0.25	42	80%	ANSI 300	Carbon Steel	Socket Weld
TD42S3	1/2" LC, 3/4" LC, 1" LC, 1/2", 3/4", 1"	0.25	42	80%	ANSI 300	Carbon Steel	Socket Weld
TDC46M / TDS46M	1/2", 3/4", 1"; 15, 20, 25	1.4	46	80%	PN100 / ANSI 600	Carbon / Stainless Steel	Threaded, Flanged, Socket Weld
TD62LM / TD62M	1/2", 3/4", 1"; 15, 20, 25	8 / 1.4	62	50% / 80%	ANSI 600	Alloy Steel	Threaded, Socket Weld, Butt Weld
TD52M	1/4", 3/8", 1/2", 3/4", 1"	0.25	52	80%	PN63	Stainless Steel	Threaded
TD120M	1/2", 3/4", 1"; 15, 20, 25	8	250	50%	PN250	Alloy Steel	Butt Weld, Socket Weld, Flanged

Capacity (Cold Water) - kg/hr

Differential Pressure (bar):

Model	1	2	4	6	10	18	30	42	62	120
1/2" TD42S2 LC, TD32F LC	68	85	120	140	180	250	290	320
3/8", 1/2", 3/4", 1" TD42L	68	85	120	140	180	250	290	320
* 1/2" TD42H, 42S2, 32F	160	190	260	340	445	600	700	795
* 3/4" TD42H, 42S2, 32F	325	385	475	580	695	880	960	1050
* 1" TD42H, 42S2, 32F	500	605	780	900	1000	1400	1880	2000
1/2", 3/4", 1" TD16	68	85	120	140	180
1/2", 3/4", 1" TD25	68	85	120	140	180	250
DN15-25, TDC46M / TDS46M	10	30	55	75	100	160	200	240
DN15-25, TD62M		135	190	225	270	325	370	400	450
DN15-25, TD120M					78	100	130	150	170	240

* Max pressure for TD32F is 32 bar g.