SKU KON-BK Category

Steam traps BK15 & BK45

Thermal arresters with bimetal regulator

Data sheet

Product information

The steam traps BK15 and BK45 are thermostatic traps with a bimetallic regulator for the safe and efficient discharge of condensate from steam systems. They are robust, insensitive to water hammer and freezing and suitable for saturated steam, superheated steam and superheat lines as well as for uncontrolled heating processes.

Special features

  • Thermovit® regulator (duplex steel) – corrosion-resistant, insensitive to water hammer
  • Automatic air venting and an integrated check function
  • Maintenance without removal from the pipeline
  • Any installation position
  • Connection types: flange, weld end, socket weld, threaded socket
  • Approval to the EU Pressure Equipment Directive, ATEX compliant

Versions

  • BK15: standard version for large nominal sizes
  • BK45: versions BK45-U (subcooling), BK45-LT (low temperature), BK46 (high pressure)
  • Options: internal liner, protection tube, special connections

Advantages

  • Thermovit duplex steel regulator adjustable from outside
  • On the BK15 the strainer screen and check function are integrated in the body
  • BK15 and BK45 are permissible in any installation position
  • No potential ignition source within the meaning of the ATEX directive

Areas of application

  • Dampfleitungen and Begleitheizungen
  • Systems with a strongly varying condensate load
  • Installation points where the position cannot be chosen freely
  • Applications with fluid group 2 media

Selection and installation

The bimetallic regulator can be set from outside to a higher or lower opening temperature – this shifts the condensate backup upstream of the trap. The strainer screen and check function sit in the body, so a separate filter is not required.

FeatureBK15BK45
Nominal sizeDN 40, DN 50DN 15, DN 20, DN 25
Nominal pressurePN 40 / CL 150 / CL 300PN 40 / CL 150 / CL 300
Temperature rangeup to 450 °Cup to 420 °C
MaterialHousing steel P250GH (1.0460)Housing steel P250GH (1.0460)
RegulatorThermovit® regulator, bimetalThermovit® regulator, duo steel plates
Differential pressuremax. 22 barmax. 22 bar
Face-to-face lengthFlange: 230 mm,
Butt weld ends: 250 mm
Flange: 150-160 mm

Steam traps and plant engineering – Steam traps as system components for SKID units

Armaturenfabrik valves Steam traps, SKID process plants Pipe insulation Angle seat valves and automatic pneumatic control valves

Steam traps are much more than just drainage fittings – they are indispensable functional elements in modern steam, energy and process systems. In SKID systems, they are responsible for the safe, efficient and load-dependent drainage of condensate, thus ensuring trouble-free operation, constant energy efficiency and the protection of sensitive components.


Especially in compact, modular system packages, steam traps must work reliably, handle different pressures and temperatures and be flexibly integrated into any installation situation.
Our steam traps – including thermal versions with diaphragm regulators such as the MK45 from GESTRA – are used as integral system components in SKID and process plant construction and ensure maximum operational reliability even under demanding conditions.

FAQs

Is the steam trap BK15 vacuum-tight?

Yes, type BK15 is vacuum-proof.

EN 1092-1, ASME B16.5, Pressure Equipment Directive, ATEX-compliant.

Yes, special materials and designs are available on request.

Maintenance is possible without removing it from the pipeline.

Insulation – In combination with valves and containers

Our insulations are more than just accessories – they perfectly complement valves and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your valves
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

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