Gestra GESTRA BK45 Bimetal Pressure Balanced Thermostatic Steam Trap

GESTRA BK45 Steam Trap GESTRA is a high-end industrial valve under the German GESTRA brand, designed for high-pressure steam systems. As a bimetallic thermodynamic trap, it uses the Thermovit regulator as the core to achieve fast response, zero steam loss condensate discharge and air venting. Suitable for use on steam piping and heat exchangers in the chemical, power, and food processing industries, the BK45 series helps to improve system efficiency and reduce energy consumption, and its high pressure and corrosion resistance, as well as its flexible installation, make it the first choice for reliable steam system maintenance.

Product Overview

The GESTRA BK45 utilizes a stainless steel bimetal plate and a graduated nozzle mechanism to ensure that the valve is fully open to discharge condensate and air at start-up, and instantly closes as the temperature rises (approximately 15 K below saturation) to avoid steam leakage. The valve complies with the EU Pressure Equipment Directive (PED) and ATEX explosion-proof standards for Group 2 fluid environments. The BK45 responds faster and closes tighter than conventional traps, minimizing energy waste.

• Core Advantages::
  • Efficient response: Bimetal regulator for quick on/off and excellent start-up performance.
  • High Pressure DurableThe maximum differential pressure is 22 bar, which is suitable for harsh conditions such as water hammer.
  • Zero vapor loss: Tight closure design ensures leak-free steam system and improved energy efficiency.
  • Air Exhaust Function: Automatically removes air from startup and operation to improve system stability.
  • easy maintenance: Built-in filters, regular cleaning is sufficient; no special maintenance required.

For more technical details, please refer to GESTRA Official Product Datasheet PDFThe

technical specification

The BK45 series of steam traps has a comprehensive range of specifications covering a wide variety of connections and sizes to meet a wide range of industrial needs. Below is a table of key parameters (based on the PN 40 standard):

Download detailed specifications:GESTRA BK45 Data SheetThe

application scenario

The GESTRA BK45 steam trap is widely used in high pressure steam systems, including:

• Steam Pipe Drainage: Efficient condensate discharge to prevent water strike and corrosion.
• Heat exchangers and compressors: Real-time air exhaust ensures smooth system startup.
• Industrial heating processes: Optimize energy efficiency in areas such as textiles, paper and pharmaceuticals.
• special variantsBK45-U for undercooling scenarios up to 30 K; BK45-LT for low temperatures; BK46 enhanced for higher differential pressures.

Ensure electrostatic protection when used in potentially explosive areas (refer to ATEX directive). Further application examples can be found in GESTRA Product Overview PDFThe

Installation and Maintenance Guide

Installation points

• Location requirements: Any installation, but with the horizontal pipe cap on top; make sure the flow direction arrow is correct and the pipe is clean and free of contaminants.
• preliminary: Evacuate system, remove sealing plugs, wear protective equipment (gloves, goggles).
• grout: Use a torque wrench to hold it in place. It is recommended that the filter be installed upstream to prevent clogging.
• safety precautions: Operate only under no pressure and no heat to avoid the risk of overpressurization.

Full installation manual download:GESTRA BK45 Installation and Operation Guide PDFThe

Maintenance and Troubleshooting

• routine maintenance: Clean with water and a lint-free cloth; check the filter and replace the Thermovit regulator (torque 90 Nm) annually.
• common breakdown::
  • vapor leakage: Clean/replace the regulator or filter.
  • under-emission: Check valve openings, pipe slopes, or upgrade to larger size valves.
  • Cold equipment: Open the shut-off valve and clean the pipes.
• Recommended Accessories: Optional VAPOPHONE® Ultrasound Test Equipment or Continuous Monitoring Module.

Maintenance details are detailed in the Installation Manual PDF above.

Why GESTRA BK45?

As the world's leading steam control specialist, the GESTRA BK45 ensures long-lasting reliability with its German craftsmanship and innovative design. It offers superior responsiveness and durability in high pressure environments compared to competitors, helping users save 10-20% in energy costs. Consult a professional supplier today to optimize your steam system!

Official Product Page::GESTRA BK45 Series Details