SteamEraa India Private Limited is an Indian manufacturing company specializing in steam engineering products, industrial valves, and innovative solutions for efficient steam management.
SteamEraa India Private Limited is an Indian manufacturing company specializing in steam engineering products, industrial valves, and innovative solutions for efficient steam management.
The STT31 Thermodynamic Steam Trap is designed for the automatic discharge of condensate from steam distribution lines and steam equipment while minimising the loss of live steam. It operates on the thermodynamic principle, using the pressure & velocity differences between condensate & flash steam to control the opening & closing of the trap disc. The compact, robust construction incorporates a built-in seat for an integrated design. An specified insulation cover helps reduce the influence of ambient conditions & supports consistent operation in outdoor installations.
| Parameter | Specification |
|---|---|
| Product Name | Thermodynamic Steam Trap |
| Model | STT31 |
| Nominal Sizes | 15NB, 20NB & 25NB |
| Body Material | ASTM A743 Gr. CA40 |
| Operating Principle | Thermodynamic Disc Mechanism |
| Construction | Compact, Robust |
| Nominal Pressure Designation | PN 63 |
| End Connections | BSP, BSPT, NPT, Socket-weld, Flanged 150#, 300# & 600# (Weld On) |
| Seat Construction | Built-in Seat |
| Internal Disc & Seat Materials | Hardened AISI 420 |
| Strainer Screen | AISI 304 |
| Insulation Cover | All-weather Insulation Cover |
Thermodynamic disc operation: Uses the pressure effects of flash steam to open & close the disc, allowing condensate discharge while retaining live steam during the closed cycle.
Compact, robust construction: Supports installation in space-constrained steam distribution & condensate drainage lines.
Steam retention design: Disc-closing action helps limit live steam loss when the trap is operating within its specified conditions.
Extended steam-holding interval: The intended longer closed-cycle interval may reduce unnecessary cycling & steam loss.
All-weather insulation cover: Helps reduce the effect of ambient conditions on trap operation & limits heat loss from the trap body.
| Parameter | Specification |
|---|---|
| PMA (Maximum Allowable Pressure) | 63 bar(g) @ 38°C |
| TMA (Maximum Allowable Temperature) | 425°C |
| PMO (Maximum Operating Pressure) | 42 bar(g) |
| Minimum Differential Pressure for Reliable Operation | 0.25 bar |
| Cold Hydro Test Pressure | 94.5 bar(g) @ RT |
| Outlet Back Pressure | Must remain below 80% of the inlet pressure. |
The STT31 Thermodynamic Steam Trap is intended for consideration in the following industrial steam applications.
Steam distribution mains: Removal of accumulated condensate from steam headers & distribution pipelines.
Steam main drip legs: Drainage of condensate from low points and designated drainage points in steam lines.
Steam tracing systems: Condensate removal from suitable steam tracing circuits.
Utility steam systems: Condensate management in industrial steam networks.
Outdoor steam installations: Suitable applications where the specified all-weather insulation cover is appropriate for the site conditions.
