Description
GESTRA DK 47 and DK 57 PN 63 / Class 600 DN 3/8″, 1/2″, 3/4″, 1″ Steam Traps
Thermodynamic steam trap made of stainless steel.
DK 47 with integral strainer.
DK 47 L specially for low condensate flowrates
DK 47 H for larger condensate flowrates
DK 57 L specially for low condensate flowrates
DK 57 H for larger condensate flowrates
Pressure / Temperature Rating
| Max. operating pressure PMO | 42 bar g | 609 psi g |
| Max. allowable temperature TMA | 400 °C | 752 °F |
| Admissible back pressure up to 80 % of upstream pressure | ||
Dimensions and Weights
| DK 47 | ||||||||
| End connection: screwed NPT and BSP (ISO 228/1) | ||||||||
| DN | [mm] | 10 | 15 | 20 | 25 | |||
| [inch] | 3/
8 |
1/
2 |
3/
4 |
1 | ||||
| Design | L | L | H | L | H | L | H | |
|
Dimensions |
L | 78 | 78 | 78 | 90 | 90 | 95 | 95 |
| H | 40 | 40 | 40 | 43 | 43 | 46 | 52 | |
| H 1 | 64 | 64 | 64 | 68 | 68 | 70 | 72 | |
| A. F. | 36 | 36 | 41 | 36 | 41 | 36 | 55 | |
| Weight [kg] | 0.75 | 0.75 | 0.8 | 1.0 | 1.0 | 1.6 | 1.6 | |
| DK 57 | |||||||
| End connection: screwed NPT and BSP (ISO 228/1) | |||||||
| DN | [mm] | 10 | 15 | 20 | 25 | ||
| [inch] | 3/
8 |
1/
2 |
3/
4 |
1 | |||
| Design | L *) | L | H *) | L | H *) | H *) | |
|
Dimensions |
L | 55 | 65 | 70 | 80 | 80 | 90 |
| H | 35 | 38 | 39 | 43 | 43 | 51 | |
| H 1 | 13 | 16 | 16 | 20 | 20 | 23 | |
| A. F. | 36 | 36 | 41 | 41 | 41 | 55 | |
| Weight [kg] | 0.45 | 0.5 | 0.6 | 0.9 | 0.9 | 1.4 | |
Materials
| DK 47 | ||
| ASTM reference | DIN equivalent | |
| Body | A743CA40 | 1.4027 |
| Cap | AISI 416 | 1.4005 |
| Valve disc | AISI 420 | 1.4021 |
| Strainer | A182F304 | 1.4301 |
| Plug | AISI 416 | 1.4005 |
| DK 57 | ||
| ASTM reference | DIN equivalent | |
| Body | AISI 420 | 1.4021 |
| Cap | AISI 416 | 1.4005 |
| Valve disc | AISI 420 | 1.4021 |
GESTRA DK 47 and DK 57 PN 63 / Class 600 DN 3/8″, 1/2″, 3/4″, 1″
Steam Traps
GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems
Precision Steam Trapping for High-Pressure Systems
In high-pressure steam applications, even small condensate handling failures can lead to energy loss, equipment damage, and safety risks. The GESTRA DK 47 and DK 57 Steam Traps are engineered specifically for PN 63 / Class 600 steam systems, providing reliable, precise, and energy-efficient condensate discharge.
Available in DN 3/8”, 1/2”, 3/4”, and 1”, these steam traps deliver exceptional performance in compact installations, making them the preferred choice for critical industrial processes.
Product Overview
Product Name:
-
GESTRA DK 47 Steam Trap
-
GESTRA DK 57 Steam Trap
Pressure Rating:
-
PN 63
-
ASME Class 600
Nominal Sizes:
-
DN 3/8”
-
DN 1/2”
-
DN 3/4”
-
DN 1”
Application:
-
High-pressure steam & condensate systems
Key Benefits of GESTRA DK 47 & DK 57 Steam Traps
✅ Designed for High-Pressure Performance
Engineered to operate safely and reliably at PN 63 / Class 600, ensuring long-term stability under extreme operating conditions.
✅ Efficient Condensate Discharge
Provides fast and accurate removal of condensate, preventing water hammer and ensuring optimal heat transfer efficiency.
✅ Minimal Live Steam Loss
Advanced internal design ensures maximum condensate removal with negligible steam loss, reducing energy consumption.
✅ Compact & Robust Construction
Ideal for limited installation space while maintaining exceptional durability in harsh industrial environments.
✅ Low Maintenance & Long Service Life
High-quality materials and proven design reduce maintenance frequency and total cost of ownership.
Difference Between GESTRA DK 47 and DK 57
| Feature | GESTRA DK 47 | GESTRA DK 57 |
|---|---|---|
| Pressure Class | PN 63 / Class 600 | PN 63 / Class 600 |
| Application Focus | General high-pressure | Heavy-duty / critical processes |
| Condensate Capacity | High | Very High |
| Industrial Use | Standard industrial | Severe operating conditions |
Both models provide industry-leading performance, with selection depending on process load and system requirements.
Typical Industrial Applications
GESTRA DK 47 & DK 57 Steam Traps are widely used in:
-
Power generation plants
-
Chemical & petrochemical industries
-
Oil & gas facilities
-
Refineries
-
High-pressure steam tracing
-
Process heating equipment
-
Turbines & heat exchangers
Why Choose Original GESTRA Steam Traps?
✔ German engineering excellence
✔ Proven reliability in high-pressure systems
✔ Compliance with international standards
✔ Reduced energy and maintenance costs
✔ Global technical support & availability
Choosing original GESTRA DK Series Steam Traps ensures safe, efficient, and long-term steam system operation.
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PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
PT Totalitas Teknik Indonesia
