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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

FeaturesFor steam, flanged, lever, large size
TypeSafety valve
SpecificationsProduct typeSafety valve/Relief valve
Nominal size65A (2-1/2″) – 150A (6″)
ApplicationSteam
End connectionJIS 10KFF flanged, JIS 16KFF flanged
Working pressure0.05 – 1.5 MPa (*)
Max. temperature220 degree(C)
MaterialBodyDuctile cast iron
Spring caseDuctile cast iron
Valve and valve seatStainless 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

SizeL (mm)H1 (mm)Weight (kg)
65A(2 1/2)12012020.2
80A(3)130130 (132)24
100A(4)160150 (152)44
125A(5)200205 (207)88
150A(6)210215 (217)113

*The value in parenthesis are the dimension of JIS 16K FF flanged.

About flow rate

Apply Pressure Classification List

ModelNominal sizeABcDEFGH
AL-665A0.05-0.10.11-0.250.26-0.550.56-1.01.01-1.5
80A0.05-0.10.11-0.20.21-0.40.41-0.80.81-1.01.01-1.5
100A0.05-0.10.11-0.20.21-0.40.41-0.80.81-1.01.01-1.5
125A0.05-0.10.11-0.20.21-0.40.41-0.80.81-1.01.01-1.5
150A0.05-0.10.11-0.20.21-0.40.41-0.8

■Certified Capacity Table for AL-6

• For steam (saturation temperature) < Pressure vessel structure standard> (kg/h)

Norminal Size /  Pressure MPa0.050.10.20.30.40.50.60.70.8
65A2633404936638341000116513281489
80A35045265788211111331155017671983
100A6228041168156919752367275631423525
125A97212571826245130863699430749105508
150A140018102629353044455327620370717932

<Boiler structure standard> (kg/h)

Pressure MPa /
Norminal Size
0.050.10.20.30.40.50.60.70.80.91.01.11.21.31.41.5
65A2553324866407969471101125414071557171018622013216423172469
80A339442647851105912611466167018732073227624792680288130843286
100A60478611501514188422422607296833303686404744074765512254835843
125A944122817972366294435044074463852045760632468867446800385679129
150A135917692588340742395046586666807494

Dimensional drawing

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