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YOSHITAKE AL-6 Safety and Relief Valve

Made in Japan
Manufacturer: Yoshitake
Model: AL-6

  • Ductile cast iron body
  • Operation test can be performed by the lever

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

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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