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Temperature Control bimetal

Home STEAM TRAPS THERMOSTATIC STEAM TRAPS Temperature Control bimetal

Temperature Control Steam Traps are bimetallic steam traps which do not follow the steam saturation curve. The discharge temperature can be adjusted manually, which allow these steam traps to adopt to a wide range of applications, where optional undercooling is possible and where sensible heat savings and flash steam reduction are desirable.

These steam traps are perfectly fitted for reducing the steam consumption at steam main and steam tracing lines thus guaranteeing a high degree of energy savings.

Operating principle

Model TB7N

Model	Available Sizes	Available Connections	Maximum Operating Pressure MPa (psig)	Maximum Operating Temperature ^°C (^°F)	Body and Cover Material	Download
TB1N	1/4″, 3/8″	Screwed Rc & NPT	1,6 (230)	350 (662)	Carbon Steel
TB9N	1/2″ – 1″	Screwed Rc & NPTSocket weld JIS, ASME, DINFlanged JIS, ASME, DIN	1,6 (230)	350 (662)	Forged Steel
TB7N	1/2″ – 1″		2,1 (305)	350 (662)	Forged Steel
TBC2	1/4″, 3/8″	Screwed Rc, NPT	1,0 (145)	220 (428)	Stainless Steel
TB51	1/2″– 1″	Screwed Rc & NPTSocket weld JIS, ASME, DINFlanged JIS, ASME, DIN	6,4 (925)	425 (800)	Forged Steel
TB52	1/2″ – 1″		6,4 (925)	475 (887)	Forged Steel
TBH71	1/2″– 1″	Socket weld JIS, ASME, DINFlanged JIS, ASME, DIN	10,5 (1522)	470 (878)	Cast Steel
TBH72	1/2″– 1″		10,5 (1522)	550 (1022)	Cast Steel
TBH81	1/2″– 1″		20,0 (2900)	470 (878)	Cast Steel
TBH82	1/2″ – 1″		20,0 (2900)	550 (1022)	Cast Steel

Features

All traps are equipped with the patented valve mechanism SCCV® -System
The SCCV® -System ensures a superior closing performance in the center of the port, greatly reduced wear of the internal parts and extended life of the trap
Highly efficient in energy conservation – eliminates virtually 100% of steam loss
Continuous discharge of the condensate according to the adjusted temperature – not influenced by inlet pressure changes
Inline repairable – easy and quick replacement of the bimetal unit and the seat
Readjustment possible while the trap is in operation (for low pressure applications);
All traps equipped with integral strainer
Can be installed both horizontally and vertically

Suitable for:

	TB7		Steam main lines and tracing lines, low and medium pressure applications
	TB9		Steam main lines, tracing and small heat exchanger, low and medium pressure applications
	TBC2, TB1N		Steam tracing lines, low pressure applications
	TB51/52/71/72/81/82		High pressure steam main lines, high pressure applications

Operating principle:

cold condensate hot-condensate

hot condensate

On start-up, the bimetal discs are all flat and the valve shaft is up with the valve fully open. Virtually all cold condensate and air are discharged.

As the temperature of the condensate increases, the bimetal discs begin to curve gradually and force the valve shaft and the valve holder to move down.
Most of the condensate is still discharged quickly, since the valve and the holes in the fixed guide on the valve seat are still fully open.

When condensate with higher temperature (near to set temperature) flows in, the bimetal discs are curved even more and at the same time the valve shaft moves down and the valve holder closes the holes in the guide partially.
The amount of condensate being discharged is reduced quickly. This prolongs the time that the hot condensate stays near the bimetal discs and the heat of the condensate is transferred to the bimetals much more effectively.

In case of very low condensate flow, the holes in the guide are closed completely by the valve holder and the valve will close precisely in the center of the seat. Normally, the trap is filled with hot condensate and the operation will rest in the state shown in figure 3. Condensate will be discharged continuously at a stable temperature (very close to the set temperature).