Ball float and rolling ball seal for larger condensate volumes
The UNA series from GESTRA comprises float steam traps for the reliable drainage of large quantities of condensate from steam and gas lines. Thanks to their back pressure-independent operation, these traps are suitable for all operating conditions – from saturated steam to cold condensate.
| Feature | UNA 14 | UNA 16 | UNA 16A | UNA 45 | UNA 46 | UNA 46A |
| Nominal size | DN 15 – DN 25 | DN 15 – DN 25 | DN 15 – DN 25 | DN 15 – DN 65 | DN 15 – DN 65 | DN 15 – DN 65 |
| Nominal pressure | PN 25 | PN 40 / CL 150 | PN 40 / C L150 | PN 40 / CL 150 / CL 300 | PN 40 / CL 150 / CL 300 | PN 40 / CL 150 / CL 300 |
| Temperature range | up to 350 °C | up to 400 °C | up to 300 °C | up to 350 °C | up to 420 °C | up to 450 °C |
| Material | Steel | Steel | Stainless steel | Steel / ductile iron | Carbon steel | Stainless steel |
| Differential pressure | up to 13 bar | up to 22 bar | up to 22 bar | up to 13 bar | up to 13 bar | up to 13 bar |
Steam traps are much more than just drainage fittings – they are indispensable functional elements in modern steam, energy and process systems. In SKID systems, they are responsible for the safe, efficient and load-dependent drainage of condensate, thus ensuring trouble-free operation, constant energy efficiency and the protection of sensitive components.
Especially in compact, modular system packages, steam traps must work reliably, handle different pressures and temperatures and be flexibly integrated into any installation situation.
Our steam traps – including thermal versions with diaphragm regulators such as the MK45 from GESTRA – are used as integral system components in SKID and process plant construction and ensure maximum operational reliability even under demanding conditions.
Yes, the float control makes them suitable for all operating conditions.
EN 1092-1, ASME B16.5, Pressure Equipment Directive, ATEX-compliant.
Yes, type UNA 16A and UNA 46A are made of stainless steel for corrosive media.
Maintenance is possible without removing it from the pipeline.
Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
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