Manufacturer: Fushiman Co.,LTD.
Model: DK57
Model | Nominal Diameter | Method | Maximum Operating Pressure | Maximum Operating Temperature | Body Material | Connection |
---|
DK57 | 15–25 | disk | 2.0 MPa | 300°C | Stainless steel | Screw-in |
Features
- Suitable for saturated steam and superheated steam.
Compact and sensitive operation.
Composed of a few moving parts.
You can install it on horizontal and vertical piping (1). - DK47 model comes with a strainer.
*Note (*1): Horizontal and upright installation is preferred.
Specifications and Materials
Model | Fluid | Main Application | Max Operating Pressure | Max Operating Temperature | Back Pressure | Strainer | Valve Box | Main Component Materials | Pipe Connection |
---|
DK47 | Steam / Drain | For steam pipes with dust and scale, or to protect small equipment from clogging. Except when significant back pressure is applied. | 2.0 MPa | 300°C | 80% or less of inlet pressure | Included | Stainless Steel (Martensitic) | Stainless Steel (Austenitic) | Threaded type JIS Rp |
DK57 | Steam / Drain | Same as above. Except when significant back pressure is applied. | 2.0 MPa | 300°C | 80% or less of inlet pressure | Not included | Stainless Steel (Martensitic) | Stainless Steel (Austenitic) | Threaded type JIS Rp |
Structure and Dimensions

Model | Nominal Diameter | Thread Size | Weight (kg) |
d | L (mm) | H₁ (mm) | H₂ (mm) |
DK47 | 15 | 1/2 | 78 | 64 | 40 | 0.8 |
20 | 3/4 | 90 | 68 | 43 | 1 |
25 | 1 | 95 | 72 | 52 | 1.6 |
DK57 | 15 | 1/2 | 70 | 16 | 39 | 0.6 |
20 | 3/4 | 80 | 20 | 43 | 0.9 |
25 | 1 | 90 | 23 | 51 | 1.4 |
Discharge Capacity
Example of Use
Please refer to page 208 of the technical document titled “Examples of Steam Trap Usage.”