Technical Specifications
Below are the comprehensive technical parameters for the Gestra BK 45 bimetallic steam trap under EN/DIN PN 40 pressure rating standards.
| Parameter | Official Specification Details |
|---|---|
| Manufacturer / Brand | Gestra AG (Germany) |
| Type / Model | BK 45 (Thermostatic/Bimetallic Steam Trap) |
| Nominal Size (DN) | DN 20 (3/4 Inch / 3/4") |
| Pressure Rating (PN) | PN 40 (Nominal Pressure 40 Bar) |
| Max. Operating Pressure (PMO) | 22 barg (at max temperature) |
| Max. Operating Temperature (TMO) | Up to 400 °C |
| End Connection Options | Flanged (EN 1092-1), Screwed, Socket Weld, or Butt Weld |
| Body Material | Forged Steel 1.0460 (P250GH) / Carbon Steel |
| Internal Components | Corrosion-resistant Stainless Steel with Thermostatic Bimetal Regulator |
| Key Features | Integrated non-return valve action, automatic air venting, high thermal efficiency, and frost-proof design. |
Important Application Notice:
The Gestra BK 45 series is renowned for its durability against water hammer and thermal shock. For optimal discharge capacity and air-venting performance, ensure the trap is installed in the correct flow direction as indicated by the arrow on the forged steel body.
