- Ductile cast iron body
- Operation test can be performed by the lever
Japan, Yoshitake
YOSHITAKE AL-6 Safety and Relief Valve
Made in Japan
Manufacturer: Yoshitake
Model: AL-6
Specifications
| Features | For steam, flanged, lever, large size | |
|---|---|---|
| Type | Safety valve | |
| Specifications | Product type | Safety valve/Relief valve |
| Nominal size | 65A (2-1/2″) – 150A (6″) | |
| Application | Steam | |
| End connection | JIS 10KFF flanged, JIS 16KFF flanged | |
| Working pressure | 0.05 – 1.5 MPa (*) | |
| Max. temperature | 220 degree(C) | |
| Material | Body | Ductile cast iron |
| Spring case | Ductile cast iron | |
| Valve and valve seat | Stainless steel | |
Remarks
*1 Maximum working pressure for 150A is 0.8 MPa.
*2 JIS 16K FF flanged when working pressure is more than 1.0 MPa.
Dimensions and Weights
| Size | L (mm) | H1 (mm) | Weight (kg) |
|---|---|---|---|
| 65A(2 1/2) | 120 | 120 | 20.2 |
| 80A(3) | 130 | 130 (132) | 24 |
| 100A(4) | 160 | 150 (152) | 44 |
| 125A(5) | 200 | 205 (207) | 88 |
| 150A(6) | 210 | 215 (217) | 113 |
*The value in parenthesis are the dimension of JIS 16K FF flanged.
About flow rate
Selection data：
Apply Pressure Classification List
| Model | Nominal size | A | B | c | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|---|
| AL-6 | 65A | 0.05-0.1 | 0.11-0.25 | 0.26-0.55 | 0.56-1.0 | 1.01-1.5 | |||
| 80A | 0.05-0.1 | 0.11-0.2 | 0.21-0.4 | 0.41-0.8 | 0.81-1.0 | 1.01-1.5 | |||
| 100A | 0.05-0.1 | 0.11-0.2 | 0.21-0.4 | 0.41-0.8 | 0.81-1.0 | 1.01-1.5 | |||
| 125A | 0.05-0.1 | 0.11-0.2 | 0.21-0.4 | 0.41-0.8 | 0.81-1.0 | 1.01-1.5 | |||
| 150A | 0.05-0.1 | 0.11-0.2 | 0.21-0.4 | 0.41-0.8 |
■Certified Capacity Table for AL-6
• For steam (saturation temperature) < Pressure vessel structure standard> (kg/h)
| Norminal Size / Pressure MPa | 0.05 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 |
| 65A | 263 | 340 | 493 | 663 | 834 | 1000 | 1165 | 1328 | 1489 |
| 80A | 350 | 452 | 657 | 882 | 1111 | 1331 | 1550 | 1767 | 1983 |
| 100A | 622 | 804 | 1168 | 1569 | 1975 | 2367 | 2756 | 3142 | 3525 |
| 125A | 972 | 1257 | 1826 | 2451 | 3086 | 3699 | 4307 | 4910 | 5508 |
| 150A | 1400 | 1810 | 2629 | 3530 | 4445 | 5327 | 6203 | 7071 | 7932 |
<Boiler structure standard> (kg/h)
| Pressure MPa / Norminal Size | 0.05 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.1 | 1.2 | 1.3 | 1.4 | 1.5 |
| 65A | 255 | 332 | 486 | 640 | 796 | 947 | 1101 | 1254 | 1407 | 1557 | 1710 | 1862 | 2013 | 2164 | 2317 | 2469 |
| 80A | 339 | 442 | 647 | 851 | 1059 | 1261 | 1466 | 1670 | 1873 | 2073 | 2276 | 2479 | 2680 | 2881 | 3084 | 3286 |
| 100A | 604 | 786 | 1150 | 1514 | 1884 | 2242 | 2607 | 2968 | 3330 | 3686 | 4047 | 4407 | 4765 | 5122 | 5483 | 5843 |
| 125A | 944 | 1228 | 1797 | 2366 | 2944 | 3504 | 4074 | 4638 | 5204 | 5760 | 6324 | 6886 | 7446 | 8003 | 8567 | 9129 |
| 150A | 1359 | 1769 | 2588 | 3407 | 4239 | 5046 | 5866 | 6680 | 7494 |
Dimensional drawing
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