Ball Float Steam Trap – Threaded (Thermostatic) DN32–DN50
Ball Float Steam Trap – Threaded (Thermostatic) DN32–DN50 is a ball float steam trap (UKS-70) with a thermostatic air vent. It discharges condensate continuously, as soon as it forms, and is the right choice for variable loads and wherever fast discharge is needed.
Contents
This is the large-body model (DN32 – DN50). For smaller sizes see Ball Float Steam Trap – Threaded (Thermostatic) DN15–DN25.
Technical Specifications
| Model | UKS-70 |
|---|---|
| Size range | 1 1/4″ – 1 1/2″ – 2″ (DN32 – DN50) |
| Connection | Threaded (BSP / NPT) |
| Nominal pressure | PN16 |
| Max. operating pressure (PMO) | 16 bar |
| Max. operating temperature (TMO) | 250 °C |
| Max. differential pressure (ΔPMX) | 4,5 / 10 / 14 bar |
| Max. allowable pressure (PMA) | 16 bar |
| Max. allowable temperature (TMA) | 300 °C |
Materials
| Body | Ductile iron GGG40.3 |
|---|---|
| Cover | Ductile iron GGG40.3 |
| Float | AISI 303 / 304 |
| Internals | Stainless steel |
| Gasket | Graphite |
How Does It Work?
At start-up the thermostatic air vent is open and discharges air; it closes when steam arrives. As condensate enters, the float rises and opens the main valve. When steam reaches the trap, the float drops and closes the main valve.
Applications
- Tanks
- Heat exchangers
- Heating coils
- Ovens
- Hot water boilers
Key Features
- Continuous, immediate condensate discharge
- Fast start-up with thermostatic air vent
- Ductile iron body, stainless internals
- Handles variable loads
Selection and Installation
Size a steam trap by condensate load and differential pressure, not by pipe size. The maximum differential pressure is selected as 4.5, 10 or 14 bar. State the flow direction when ordering. Install horizontally, threaded or flanged. Allow up to 200 mm clearance to remove the cover.
Same body, other connection type: Ball Float Steam Trap – Flanged (Thermostatic) DN32–DN50.
See the product catalogue (PDF) for dimensions, weights and capacity charts. Installation and maintenance: user manual (PDF, Turkish). Prices and online orders: Unox Online.
For steam trap types and selection, read our steam trap types guide; see all models on our steam traps page.








