Miyawaki
Miyawaki TBU4, TBU4B, TBU4B-C Temperature Control Steam Trap
Manufacturer: MIYAWAKI Inc.
Model:TBU4, TBU4B, TBU4B-C
Features
Reduces scale buildup
Complete redesign of all internal unit components.
・33% increase in bimetal valve stroke volume
・Spring opening force 2.2 times stronger
・Enlarged valve seat flow channel and space
*Compared with previous Miyawaki products
Superb durability
The MIYAWAKI SCCV (Self Closing and Centering Valve) System has the effect of increasing durability by achieving soft closing during operation.
Consisting of a free rotating valve that is centered and guided by the condensate flow, hence perfectly fitted in the valve seat even under extreme conditions of high pressure applications. This significantly reduces wear and erosion of the valve components.
Energy saving effect
A significant energy saving effect is achieved by controlling the temperature of discharged condensate. Especially in application where sensible heat of condensate can be used for heating purpose, this trap reduces steam consumption significantly.
Typical applications
Suitable for steam tracing lines in plants.
Dimensions/Weight
Screwed
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
| 1/4” | 65 | 65 | 25 | 46 | 2.6 | 2.6 | 1.0 | 1.8 | 0,58 | 1.28 |
| 3/8” | ||||||||||
With blow valve
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||||
| L | L1 | H1 | H2 | W | L | L1 | H1 | H2 | W | (kg) | (lb) | |
| 1/4” | 32.5 | 65 | 65 | 22.5 | 46 | 1.3 | 2.6 | 2.6 | 0.9 | 1.8 | 0,58 | 1.28 |
| 3/8” | ||||||||||||
With ball valve
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||||
| L | L1 | H1 | H2 | W | L | L1 | H1 | H2 | W | (kg) | (lb) | |
| 1/4” | 32.5 | 127 | 65 | 22.5 | 46 | 1.3 | 5.0 | 2.6 | 0.9 | 1.8 | 0,68 | 1.50 |
| 3/8” | 132 | 5.2 | ||||||||||
Specifications
| Model | Connection | Max. operating pressure | Max. operating differential pressure | Max. operating temperature | Adjustable range | Standard set temperature | Body material | ||||||
| Type | Size | PMO (MPa) | PMO (psig) | (MPa) | (psig) | TMO (℃) | TMO (℉) | (℃) | (℉) | (℃) | (℉) | ||
TBU4-6 Screwed | Screwed Rc,NPT | 1/4” | 0,6*1 | 87*1 | 0,6 | 87 | 220 | 428 | 50~130 | 122 – 266 | 70 (at 0,5MPa) | 158 (at 73psig) | Stainless steel SUS F304
|
| 3/8” | |||||||||||||
| TBU4B-6 With blow valve | 1/4” | ||||||||||||
| 3/8” | |||||||||||||
TBU4B-6C With ball valve | 1/4” | 0.6*2 | 87*2 | 183 | 361 | ||||||||
| 3/8” | |||||||||||||
*1 Maximum operating pressure of 1,0MPa (145psig) is available as special design.
*2 Maximum operating pressure of 0.98MPa (142psig) is available as special design.
It is possible to change the standard factory set temperature. Please specify the operating pressure and set temperature.
Please refer to the installation manual how to adjust the set temperature.
Discharge Capacity
⊿t is the difference between the temperature of a temperature control trap when the valve is initially opened and condensate temperature. The temperature difference (⊿t) upon the initial passage of air is great, and indicates that the flow rate will also increase.
* Curve1 shows the trap’s maximum capacity when discharaging cold condensate.
**Curve2 shows the trap’s maximum capacity when discharaging hot condensate at a temperature of 10°C (18°F) below the adjusted temperature of the trap.
Installation Examples
