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Gestra steam trap UNA14v DN 20 PN25 DUPLEX (AO)13
Product number
Copy to clipboard 360-1011-05
Ball float steam trap with DUPLEX control valve and (AO)13 shut-off device for vertical pipes, suitable for installation between EN 1092-1 PN25 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Nominal width :
DN20 - 3/4'' inch
Categories :
UNA 14v
Body:
Steel
Price €450.31
€535.87 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA14v DN 25 PN25 DUPLEX (AO)13
Product number
Copy to clipboard 360-1011-06
Ball float steam trap with DUPLEX control valve and (AO)13 shut-off device for vertical pipes, suitable for installation between EN 1092-1 PN25 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 14v
Nominal width :
DN25 - 1'' inch
Body:
Steel
Price €450.31
€535.87 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 20 PN40 DUPLEX (AO)4
Product number
Copy to clipboard 360-1020-05
Ball float steam trap with DUPLEX control valve and (AO)4 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN20 - 3/4'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 25 PN40 DUPLEX (AO)4
Product number
Copy to clipboard 360-1020-06
Ball float steam trap with DUPLEX control valve and (AO)4 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Nominal width :
DN25 - 1'' inch
Categories :
UNA 16h
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 15 PN40 DUPLEX (AO)13
Product number
Copy to clipboard 360-1021-04
Ball float steam trap with DUPLEX control valve and (AO)13 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN15 - 1/2'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 20 PN40 DUPLEX (AO)13
Product number
Copy to clipboard 360-1021-05
Ball float steam trap with DUPLEX control valve and (AO)13 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN20 - 3/4'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 25 PN40 DUPLEX (AO)13
Product number
Copy to clipboard 360-1021-06
Ball float steam trap with DUPLEX control valve and (AO)13 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN25 - 1'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 15 PN40 DUPLEX (AO)22
Product number
Copy to clipboard 360-1022-04
Ball float steam trap with DUPLEX control valve and (AO)22 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN15 - 1/2'' inch
Body:
Steel
Price €544.33
€647.75 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 20 PN40 DUPLEX (AO)22
Product number
Copy to clipboard 360-1022-05
Ball float steam trap with DUPLEX control valve and (AO)22 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN20 - 3/4'' inch
Body:
Steel
Price €544.33
€647.75 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16h DN 25 PN40 DUPLEX (AO)22
Product number
Copy to clipboard 360-1022-06
Ball float steam trap with DUPLEX control valve and (AO)22 shut-off device for horizontal pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16h
Nominal width :
DN25 - 1'' inch
Body:
Steel
Price €544.33
€647.75 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16v DN 15 PN40 DUPLEX (AO)4
Product number
Copy to clipboard 360-1030-04
Ball float steam trap with DUPLEX control valve and (AO)4 shut-off device for vertical pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16v
Nominal width :
DN15 - 1/2'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
Gestra steam trap UNA16v DN 20 PN40 DUPLEX (AO)4
Product number
Copy to clipboard 360-1030-05
Ball float steam trap with DUPLEX control valve and (AO)4 shut-off device for vertical pipes, suitable for installation between EN 1092-1 PN40 flanges. The robust 1.0460 housing with stainless steel internal parts offers a long service life and operational reliability. With high corrosion resistance and minimal maintenance requirements, the trap is ideal for condensate from steam, cold condensates, and distillates.
Categories :
UNA 16v
Nominal width :
DN20 - 3/4'' inch
Body:
Steel
Price €667.57
€794.41 incl. VAT Delivery Time: 2-7 Days
Available: In Stock
GESTRA Steam Traps — Series Comparison
| Series | Operating Principle | Nominal Sizes | PN / Class | Typical Application |
|---|---|---|---|---|
| BK 15 | Thermostatic — bimetallic (Thermovit) | DN15–DN50 | PN40 | Superheated steam, high pressures, batch operation |
| BK 45 | Thermostatic — bimetallic (Duo steel) | DN10–DN25 | PN25/40, ANSI 150, ASME 300 | Standard steam, continuous duty, load changes |
| MK 45-1 | Thermostatic — tandem membrane (Hastelloy) | DN10–DN25 | PN25/40, ANSI 150, ASME 300 | Low condensate loads, low differential pressure |
| MK 45-2 | Thermostatic — flat membrane (Hastelloy) | DN10–DN25 | PN25/40, ANSI 150, ASME 300 | Higher condensate loads, heat exchangers |
| MK 45A-1/2 | Thermostatic — membrane (stainless steel 1.4027) | DN10–DN25 | PN25/40 | Stainless steel systems, hygienic media |
| DK 47-L/H | Thermodynamic | DN10–DN25 | PN40 | Compact, high pressure, steam tracing |
| UNA 14/16 | Mechanical — float | DN15–DN50 | PN10/16/25/40 | Continuous discharge, sensitive processes |
| UNA 45hl | Mechanical — float (RHOMBUSline) | DN15–DN65 | PN25/40 | High condensate loads, continuous duty |
Technical Data — GESTRA Steam Traps
- Nominal size: DN10 to DN65
- Pressure rating: PN10, PN16, PN25, PN40; ANSI Class 150; ASME Class 300
- Connection: Flanged to EN 1092 (Form B1), threaded sockets to EN ISO 228-1, socket weld ends to EN 12627, ASME B16.5
- Body: Carbon steel 1.0460 / ASTM A105 (standard); stainless steel 1.4027 (MK45A)
- Internals: Stainless steel, Duo steel (BK), Hastelloy control membrane (MK)
- Gasket: Graphite/CrNi
- Trim: Duplex (optional)
- Closure elements: AO 2, AO 4, AO 8, AO 13, AO 22, AO 32 (depending on condensate load)
- Integrated: Strainer (Y-screen), check valve (all RHOMBUSline series)
- Compliance: EU Pressure Equipment Directive 2014/68/EU
Application Areas — GESTRA Steam Traps
| Industry | Recommended Series | Reason |
|---|---|---|
| Steam distribution / steam mains | BK 45 / BK 15 | Superheat resistant, robust bimetallic control |
| Heat exchangers / recovery | MK 45-1 / MK 45-2 | Membrane control at low differential pressure |
| Food / pharma / sterilisation | UNA 14/16 / MK 45A (stainless) | Continuous discharge, stainless steel body |
| Power plants / energy generation | BK 15 / UNA 45hl | High pressures, large condensate volumes |
| Steam tracing | BK 45 / DK 47 | Compact, any mounting position, small DN |
| Chemical / petrochemical | BK 15 / MK 45A (stainless) | High pressures, corrosive media |
Selecting a Steam Trap — BK, MK or UNA?
| Criterion | BK (Bimetallic) | MK (Membrane) | UNA (Float) |
|---|---|---|---|
| Operating principle | Bimetallic plates expand at steam temperature and close | Hastelloy membrane responds to temperature difference | Float rises with condensate level and opens the outlet |
| Condensate discharge | Sub-cooled condensate (intermittent) | Sub-cooled condensate (intermittent) | Condensate at saturation temperature (continuous) |
| Superheated steam | Yes — optimised for superheat | Limited | No |
| Differential pressure | Medium to high | Very low to medium | Low to high |
| Air venting | Automatic at start-up | Automatic at start-up | Via thermostatic element |
| Mounting position | Any | Any | Horizontal (h) or vertical (v) depending on variant |
| Typical application | Steam mains, tracing, superheaters | Heat exchangers, recovery, low ΔP | Process heating, dryers, sterilisation, continuous duty |
Media resistance can be checked in advance using the Resistance Tool. For requirements beyond the standard range, FERGO configures custom solutions.
GESTRA Steam Traps from Stock — Delivery across Europe
FERGO stocks 216 GESTRA steam traps — BK, MK, UNA and DK, DN10 to DN65, in carbon steel and stainless steel, with flanged, threaded and socket weld connections. Standard shipping via DHL takes 2–7 working days. Every steam trap is delivered with a datasheet and declaration of conformity. All certificates are available for download in the shop. For complementary steam system components — globe valves, strainers, GESTRA check valves and pressure gauges — FERGO offers a complete steam system supply from a single source.
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Special solutions
Solutions for your requirements Special solutions
Resistance check
Resistance list for media selection Resistance Test