Condensate load & backpressure
Provide start-up and running condensate loads, inlet pressure and return-line backpressure. Confirm capacity at the available differential pressure.
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| Available Sizes | DN15 - DN25 |
|---|---|
| Connection Type | Flanged |
| Pressure Rating | PN25 |
| Body Material | A105 · F304 · F316 |
| Size | DN15 · DN20 · DN25 |
| Operating Temperature | Up to 350°C |
| Reference Model | SHT21F |
Catalogue options. Operating limits depend on the selected size, materials and configuration.
Flanged thermostatic bimetallic steam trap for temperature-dependent condensate discharge. Specify the condensate load, inlet pressure, return-line backpressure and required discharge temperature for the duty.
Applications: Steam control
For technical documentation or assistance with your selection, contact Nordic Valves.
Reference: SHT21F
VMV SHT21F thermostatic bimetal reference, PN25, A105/F304/F316, DN15-DN25. Its 350°C operating limit is model-specific; it is not assigned to the different Lonze CS47H/CS17H 220°C construction.
| Model | Published sizes | L (mm) | H (mm) | H1 (mm) | W (mm) | Mass (kg) |
|---|---|---|---|---|---|---|
| SHT21F | DN15 / DN20 / DN25 | 150 | 168 | 100 | 115 | 4 |
VMV steam catalogue, PDF page 17 (printed page 11). The row covers all three nominal sizes. Flanged construction.
| Reference model | Nominal class | Max. operating pressure (bar) | Max. operating temperature (°C) | Published shell P/T point |
|---|---|---|---|---|
| SHT21F | PN25 | 21 | 350 | 24.5 bar at 200°C; 10.3 bar at 450°C |
Nominal pressure class describes the reference body. Operating limits, shell limits and test pressures are different quantities. Maximum pressure and maximum temperature are separate published limits; they are not a simultaneous operating point. Confirm the complete pressure-temperature envelope, selected orifice and backpressure for the duty.
| Component | Published grades |
|---|---|
| Body / bonnet | A105 / F304 / F316 |
| Disc | 440C + 304 |
| Seat | 420 |
| Other internal parts | 304 |
Material list belongs to SHT21; confirm the selected body and internal combination in the quotation.
Bellows-sealed valves, strainers, check valves and steam traps for steam supply and condensate return lines.
Explore application guidanceProvide start-up and running condensate loads, inlet pressure and return-line backpressure. Confirm capacity at the available differential pressure.
Provide the steam pressure and temperature, including start-up conditions. For condensate service, include the load and downstream pressure so the duty can be reviewed.
Include the required installation drawing, material documentation and testing requirements. Confirm the final configuration and its operating limits with your enquiry.
Include the operating conditions in your enquiry. Add your medium, pressure, temperature and documentation requirements alongside the selected options.
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