Series W | Thermoelement Steam Traps
 
            Steam Traps Series W | Thermoelement Steam Traps
W3 (for Radiators)
 
                Features/Applications
Features
- Quick startup- The original MIYAWAKI thermoelement swiftly discharges initial cold condensate and air. 
- No steam leaks- Operates below saturation temperature, resulting in no steam leaks and great energy saving performance. 
- Resilient against dirt and scale- Dirt and scale are effectively discharged thanks to a generously designed valve hole and large flow surface area in the valve. 
- Anti-freeze functionality- The valve remains fully open once the operation stops and drains completely. 
- Easy maintenance- By removal of the cover all internal parts of the trap can be exchanged, leaving the trap installed in line. 
Typical applications
For radiators
Suitable for heating systems in places such as hotels, schools, hospitals, and offices.
The W3 can also be used in intermediate and pipe end sections of low-pressure heating lines.
Dimensions/Weight
Dimensions/Weight

| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
| 1/2” | 123 | 42 | 28 | 41 | 4.8 | 1.7 | 1.1 | 1.6 | 0,6 | 1.3 | 
| 3/4” | 135 | 34 | 5.3 | 1.3 | 0,7 | 1.5 | ||||
Specifications
| Model | Connection | Max. operating pressure | Max. operating pressure differential | Max. operating temperature | Body material | ||||
| Type | Size | (MPa) | (psig) | (MPa) | (psig) | (℃) | (℉) | ||
| W3-1.5 | Inlet-side: Male screw (R) Outlet-side: Female screw (Rc) | 1/2” | 0,15 | 21.8 | 0,15 | 21.8 | 150 | 302 | Brass C3771 | 
| 3/4” | |||||||||
| W3-3 | 1/2” | 0,3 | 43.5 | 0,3 | 43.5 | ||||
| 3/4” | |||||||||
Discharge Capacity

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Features
- Quick startup- The original MIYAWAKI thermoelement swiftly discharges initial cold condensate and air. 
- No steam leaks- Operates below saturation temperature, resulting in no steam leaks and great energy saving performance. 
- Resilient against dirt and scale- Dirt and scale are effectively discharged thanks to a generously designed valve hole and large flow surface area in the valve. 
- Anti-freeze functionality- The valve remains fully open once the operation stops and drains completely. 
- Easy maintenance- By removal of the cover all internal parts of the trap can be exchanged, leaving the trap installed in line. 
Typical applications
For radiators
Suitable for heating systems in places such as hotels, schools, hospitals, and offices.
The W3 can also be used in intermediate and pipe end sections of low-pressure heating lines.
Dimensions/Weight

| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
| 1/2” | 123 | 42 | 28 | 41 | 4.8 | 1.7 | 1.1 | 1.6 | 0,6 | 1.3 | 
| 3/4” | 135 | 34 | 5.3 | 1.3 | 0,7 | 1.5 | ||||
| Model | Connection | Max. operating pressure | Max. operating pressure differential | Max. operating temperature | Body material | ||||
| Type | Size | (MPa) | (psig) | (MPa) | (psig) | (℃) | (℉) | ||
| W3-1.5 | Inlet-side: Male screw (R) Outlet-side: Female screw (Rc) | 1/2” | 0,15 | 21.8 | 0,15 | 21.8 | 150 | 302 | Brass C3771 | 
| 3/4” | |||||||||
| W3-3 | 1/2” | 0,3 | 43.5 | 0,3 | 43.5 | ||||
| 3/4” | |||||||||

* Membership registration is required to download the documents.