Description
GESTRA BK 212 Duo Steam Trap | DN 15 20 25 | BK 212 Series
Thermostatic/thermodynamic steam trap with corrosion resistant Thermovit®- regulator (S. S. bimetallic plates) able to with- stand waterhammer. With internal strainer and integral non-return valve action. Asbestos-free body gasket (graphite/CrNi). Installation in any position.
The default factory setting enables the steam trap to discharge condensate with virtually no banking-up.
Function
During start-up of the plant the bimetallic (Duo stainless steel) plates are flat. The service pressure acts in the opening direction, the valve is completely open. As the condensate temperature rises, the bimetallic plates deflect, drawing the stage nozzle towards the closed position.
As the condensate temperature sinks, the deflection of the Duo stainless steel plates decreases and the steam trap opens at the adjusted opening temperature.
The thermostatic and spring characteristics of the stack of plates are balanced such that condensate is always discharged at a given undercooling temperature.
The steam trap provides automatic air-venting at start-up and during operation of the plant. BK 212 can also be used for thermal air-venting in steam systems.
Pressure & temperature ratings
| BK 212, body/cover: 1,7383, screws: 1.7709 | ||||||
| PMA (max. allowable pressure) [bar]g | 630 | 630 | 543 | 447 | 306 | 261 |
| TMA (max. allowable temperature) [°C] | 20 | 300 | 480 | 500 | 530 | 540 |
| Maxiumum differential pressure ? PMX [bar] | 275 | |||||
Calculated in accordance with DIN EN 12516-2
| BK 212-S, body/cover: 1,7383, screws: 1.4923 | ||||||
| PMA (max. allowable pressure) [bar]g | 630 | 630 | 333 | 289 | 252 | 163 |
| TMA (max. allowable temperature) [°C] | 20 | 450 | 530 | 540 | 550 | 580 |
| Maxiumum differential pressure ? PMX [bar] | 275 | |||||
Calculated in accordance with DIN EN 12516-2
| BK 212-F91, body/cover: 1.4903/F91, screws: 1.4923 | ||||||
| PMA (max. allowable pressure) [bar]g | 775 | 775 | 741 | 607 | 381 | 205 |
| TMA (max. allowable temperature) [°C] | 20 | 425 | 450 | 500 | 540 | 580 |
| Maxiumum differential pressure ? PMX [bar] | 275 | |||||
Calculated in accordance with DIN EN 12516-2
| BK 212-F91-SD, body/cover: 1.4903/F91, screws: 2.4952 | ||||||
| PMA (max. allowable pressure) [bar]g | 775 | 775 | 615 | 473 | 348 | 255 |
| TMA (max. allowable temperature) [°C] | 20 | 525 | 550 | 575 | 600 | 625 |
| Maxiumum differential pressure ? PMX [bar] | 275 | |||||
Calculated in accordance with DIN EN 12516-2
| BK 212-F92-SD, body/cover: 1.4901, screws: 2.4952 | ||||||
| PMA (max. allowable pressure) [bar]g | 800 | 800 | 693 | 418 | 300 | 207 |
| TMA (max. allowable temperature) [°C] | 20 | 500 | 550 | 600 | 625 | 650 |
| Maxiumum differential pressure ? PMX [bar] | 275 | |||||
Calculated in accordance with DIN EN 12516-2
| BK 212-ASME, body/cover: ASTM A182 F22, screws: A193 B16 (standard) | |||||||
| PMA (max. allowable pressure) | [bar]g | 430 | 304 | 235 | 170 | 130 | 81 |
| TMA (max. allowable temperature) | [°C] | 20 | 400 | 500 | 530 | 550 | 580 |
| PMA (max. allowable pressure) | [psi]g | 6250 | 4430 | 3220 | 2230 | 1455 | 915 |
| TMA (max. allowable temperature) | [°F] | 100 | 750 | 950 | 1000 | 1050 | 1100 |
| ? PMX (admissible differential pressure) | [bar] | 275 | |||||
| [psi] | 3625 | ||||||
Calculated in accordance with ASME B16.34
Attention: The selected end connections may reduce the pressure/temperature ratings.
GESTRA BK 212 Series | DN 15 20 25
Duo Steam Trap Series
GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems
Reliable Steam Trapping Starts with GESTRA
Efficient condensate removal is essential for energy savings, system protection, and stable steam operation. The GESTRA BK 212 Duo Steam Trap series is engineered to deliver high reliability, precise condensate discharge, and long service life in demanding industrial steam systems.
Available in DN 15, DN 20, and DN 25, and multiple material and standard configurations—including ASME versions—the BK 212 series is a proven solution for modern steam and condensate management.
GESTRA BK 212 Duo Steam Trap – Product Overview
Product Series:
- GESTRA BK 212
- GESTRA BK 212-S
- GESTRA BK 212-F91
- GESTRA BK 212-F91-SD
- GESTRA BK 212-F92-SD
- GESTRA BK 212-ASME
Nominal Sizes:
- DN 15
- DN 20
- DN 25
Type:
- Duo (thermodynamic steam trap design)
Standards:
- EN / DIN
- ASME (for global & export projects)
Key Advantages of GESTRA BK 212 Duo Steam Traps
✅ High Condensate Discharge Capacity
The Duo design ensures fast and efficient removal of condensate, even under fluctuating pressure conditions.
✅ Minimal Live Steam Loss
Optimized internal geometry reduces steam loss, helping to lower energy consumption and operating costs.
✅ Robust Materials for Industrial Use
Available in advanced alloy materials such as F91 and F92, suitable for high-temperature and high-pressure applications.
✅ Reliable Operation in All Conditions
Performs consistently under:
- Variable steam loads
- Pressure fluctuations
- Intermittent and continuous operation
✅ Low Maintenance & Long Service Life
Simple, durable construction minimizes wear and maintenance frequency.
GESTRA BK 212 Model Variants Explained
| Model | Key Feature | Application |
|---|---|---|
| BK 212 | Standard version | General industrial steam |
| BK 212-S | Enhanced sealing | Improved tightness |
| BK 212-F91 | High-alloy steel | High temperature systems |
| BK 212-F91-SD | With strainer & drain | Dirty steam / high reliability |
| BK 212-F92-SD | Advanced alloy + strainer | Extreme operating conditions |
| BK 212-ASME | ASME standard | International & export projects |
Typical Industrial Applications
GESTRA BK 212 Duo Steam Traps are widely used in:
- Steam distribution lines
- Heat exchangers
- Process heating equipment
- Power plants
- Oil & gas facilities
- Chemical & petrochemical industries
- Food & beverage processing
- Pharmaceutical manufacturing
Why Choose Original GESTRA BK 212 Steam Traps?
✔ Proven German engineering
✔ Global industrial reference projects
✔ High safety and performance standards
✔ Reduced energy and maintenance costs
✔ Long-term operational reliability
Choosing original GESTRA BK 212 Duo Steam Traps ensures system efficiency, safety, and compliance.
GESTRA BK 212 vs Conventional Steam Traps
| Feature | GESTRA BK 212 | Conventional Trap |
|---|---|---|
| Condensate Discharge | Fast & stable | Inconsistent |
| Steam Loss | Very low | Often high |
| Reliability | Excellent | Variable |
| Maintenance | Minimal | Frequent |
| Service Life | Long | Shorter |
Buy GESTRA BK 212 Duo Steam Traps from a Trusted Supplier
We supply 100% genuine GESTRA BK 212 steam traps with professional technical support.
📩 Contact us today for:
- Latest pricing
- Datasheets & technical documentation
- Model selection assistance
- Fast delivery & after-sales support
🚚 Worldwide shipping
🔧 Expert steam system consultation
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PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
