Cast Iron
Yoshitake TB-5 is a high-performance inverted bucket steam trap featuring a ductile cast iron body and a unique internal structure with a free-floating lever system. Designed for durability and reliable performance, all internal components are constructed from stainless steel. It effectively removes the air adiabatic wall in heat exchangers through intermittent operation, thereby significantly increasing heat efficiency and offering superior energy saving.
Features
- Excellent durability ensured by unique internal structure (free floating lever system, spherical valve, etc).
- Reliable performance due to all stainless steel made internal parts and the unique internal structure.
- Superior energy saving since intermittent operations removes air adiabatic wall in the heat exchanger and increases heat efficiency considerably.
- Distinguished scale resistance provided by built-in strainer and dual separation system.
- Wide variety of options, including large vent and built-in type check valve.
Specifications
| Model | TB-5 |
|---|---|
| Maximum pressure | 1.0 MPa |
| Maximum working differential pressure | Refer to "Orifice Size" Chart |
| Max. temperature | 220°C |
| Body Material | Ductile cast iron |
| Valve, valve seat Material | Stainless steel |
| Bucket Material | Stainless steel |
| Connection | JIS 10K FF flanged |
| Nominal size | 15A-50A |
Orifice Size & Max Working Differential Pressure
| Max. working differential pressure MPa | Nominal size 15A-25A | Nominal size 32A-50A |
|---|---|---|
| 3/8 (9.5mm) | - | 0.21 |
| 9/32 (7.1mm) | - | 0.56 |
| 1/4 (6.4mm) | - | 0.87 |
| 7/32 (5.6mm) | - | 1.0 |
| 1/8 (3.2mm) | 0.56 | - |
| 7/64 (2.8mm) | 0.87 | - |
| #38 (2.5mm) | 1.0 | - |
Discharge Capacity
The charts below show the discharge capacity of saturated condensate in actual operation.
Capacity Selection Note
The discharge capacity shown here is a continuous discharge capacity at the indicated differential pressure. In general, select a steam trap with a safety factor twice or threefold the regular level. The circled values are maximum working differential pressures (kgf/cm²). Values in white circles represent a standard product, and those in a green circle denote a custom-made product.
15A-25A
32A-50A
Dimensions and Weights
| Nominal size | L (mm) | H (mm) | H1 (mm) | Plug | Weight (kg) |
|---|---|---|---|---|---|
| 15A | 175 | 177 | 98 | NPT 3/8 | 4.5 |
| 20A | 195 | 177 | 98 | NPT 3/8 | 4.9 |
| 25A | 215 | 177 | 98 | NPT 3/8 | 6.2 |
| 32A | 280 | 336 | 190 | NPT 1/2 | 18.3 |
| 40A | 280 | 336 | 190 | NPT 1/2 | 18.7 |
| 50A | 290 | 336 | 190 | NPT 1/2 | 19.6 |
Dimensional Drawings
15A-25A
32A-50A
Exploded View & Parts List
Maintenance Info
Parts names shown in the boxes on the diagram are consumable parts. The cap cannot be removed. The parts (PCA assembly) are set selling products. When cleaning the screen, remove the plug and blow it. (PCA stands for Parts complex assembly)
Detailed Parts Material List
| No | Name of Parts | Material |
|---|---|---|
| 1 | Body | Ductile Cast Iron |
| 2 | Cover | Cast Iron |
| 3 | Plug | Stainless Steel (15A-25A) / Carbon Steel (32A-50A) |
| 4 | Gasket | Soft Steel or Iron |
| 5 | Strainer Cap | Carbon Steel (15A-25A) / Cast Iron (32A-50A) |
| 6 | Strainer | Stainless Steel |
| 7 | Pipe | Carbon Steel |
| 8 | Bucket | Stainless Steel (15A-25A) / Stainless Steel & Cast Iron (32A-50A) |
| 9 | Lever | Stainless Steel |
| 10 | Valve | Stainless Steel |
| 11 | Valve Seat | Stainless Steel |
| 12 | Guide Pipe | Stainless Steel |
| 13 | Gasket | Non-Asbestos |
| 14 | Bolt | Carbon Steel |
| 15 | Name Plate | Stainless Steel |
| 17 | Plug | Carbon Steel |
Options
The options listed below are made-to-order items. For further information, please contact us.
- Large vent (LV)
- Thermic vent bucket (T)
- Scrub wire (VW)
- Built-in type check valve (V)
Option Limitation
Only either a built-in type check valve or a thermic vent bucket can be installed on 15A to 25A steam traps.
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