- Adjusting handle enables easy setting
- Double valve structure for capacity
Japan, Yoshitake
YOSHITAKE OB-4 Temperature Regulator
Made in Japan
Manufacturer: Yoshitake
Model: OB-4
Specifications
| Features | For cooling, flanged | |
|---|---|---|
| Type | Internal pressure bellows type | |
| Specifications | Product type | For cooling |
| Nominal size | 15A (1/2″) – 150A (6″) | |
| Application | Water, refrigerant | |
| End connection | JIS 10K FF flanged | |
| Max. pressure | 0.7 MPa (*Depends on the nominal size) | |
| Working temperature | Max. 180 degree(C) | |
| Temperature regulating range | 40-60 degree(C), 60-80 degree(C), 80-100 degree(C), 100-120 degree(C) | |
| Capillary length | 15-80A: 2m, 100-150A: 3m | |
| Material | Body | Cast iron |
| Valve | Bronze | |
| Thermal bulb | Stainless steel | |
Remarks
* Max. pressure
[15A-40A] 0.7MPa
[50A-65A] 0.5MPa
[80A-100A] 0.4MPa
[125A-150A] 0.2MPa
* Capillary length up to 5m is available as option.
* Valve, Valve seat Stainless steel option is available.
Dimensions and Weights
| Size | L (mm) | H (mm) | Weight (kg) |
|---|---|---|---|
| 15A(1/2) | 126 | 520 | 15 |
| 20A(3/4) | 130 | 520 | 16 |
| 25A(1) | 140 | 540 | 18 |
| 32A(1 1/4) | 150 | 550 | 21 |
| 40A(1 1/2) | 160 | 550 | 23 |
| 50A(2) | 180 | 620 | 29 |
| 65A(2 1/2) | 215 | 650 | 38 |
| 80A(3) | 260 | 670 | 48 |
| 100A(4) | 300 | 750 | 58 |
| 125A(5) | 360 | 810 | 76 |
| 150A(6) | 382 | 980 | 125 |
About flow rate
Selection data：
■ OB-4,4G Nominal Size Selection Chart (For Water)
How to use the chart
When inlet pressure is 0.3 MPa, outlet pressure is 0.15 MPa, and flow rate is 9 m³/h, first find the intersection point (a) with the differential pressure (ΔP) 0.15 MPa (0.3 MPa − 0.15 MPa) before and after valve and the flow rate 9 m³/h. Since this intersection point (a) locates between nominal sizes 32A and 40A, select the larger one, 40A.
* Chart of the flow rate is a reference value.
Dimensional drawing
