Size: DN 15-50
Pressure rating: PN 40-630, ASME 600-2500
Materials: GS-C 25N, 15Mo3, 13CrMo44, 10CrMo910, X10CrMo
Connection method: Flanged, screwed sockets, socket-weld ends, butt-weld ends
The operating principle of the bimetallic steam trap is based on a pressure/temperature-controlled bimetallic regulator. The regulator’s plates are welded together from two materials with different thermal expansion coefficients, causing them to bend when heated. The plate stack is assembled so that the bending plates are placed against each other, and the regulator closes as the pressure increases. The steam trap is adjusted so that it is fully closed just before steam flows through it, ensuring that live steam losses are 0 kg/h.
The bimetallic steam trap is particularly suitable for applications where condensate amounts are relatively small, but pressures are high.
The GESTRA BK bimetallic steam trap is a robust basic steam trap. Due to its construction, it withstands superheated steam well, making it an excellent choice for power plant applications. The BK series is also a good option for applications where strong built-in backflow protection is required, especially when pressure surges affecting the trap cannot be avoided in the system design. However, it should be noted that the backflow prevention structure is not spring-loaded. The force of “pressureless” reverse flows alone is not sufficient to close the trap. In such cases, an additional check valve is recommended.
BK-series steam traps are also suitable for outdoor use.
Area Sales Manager, Central and Northern Finland
Sales Director
Sales Director
