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EPDT-193e

 

 

 

MODEL AL-150T series and AL-140T series 

SAFETY RELIEF VALVE 

 

PRODUCT MANUAL

 

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Thank you very much for choosing the Yoshitake’s product.    To ensure the correct and safe use of the product, 

please read this manual before use.    This manual shall be kept with care for future references. 
The symbols used in this manual have the following meanings. 

 

          Warning 

This  symbol  indicates  a  potentially  hazardous  situation  that,  if  not  avoided, 
could result in death or serious injury. 

          Caution 

This symbol indicates a hazardous situation that, if not avoided, may result in 
minor or moderate injury or may result in only property damage. 

 

 

Table of Contents 

 

1. Usage of the Product ·················································· 1 

2. Specifications···························································· 1 

3. Dimensions and Weight ··············································· 2 

4. Structure   ································································ 3 

5. Operation   ······························································· 3 

6. Nominal Size Selection Table ········································ 4 

6.1 For air (at 20˚C) ··················································· 4 

6.2 For water (

at 20˚C,

 

accumulation: 25%) ····················· 4 

7. Installation ································································ 5 

7.1 Piping example ···················································· 6 

8. Maintenance ····························································· 6 

8.1 Daily inspection ··················································· 7 

8.2 Regular inspection ··············································· 7 

8.3 Troubleshooting ··················································· 7 

8.4 Procedure for set pressure adjustment ······················ 9 

Warranty Information 

 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for AL-150T Series

Page 1: ...that if not avoided could result in death or serious injury Caution This symbol indicates a hazardous situation that if not avoided may result in minor or moderate injury or may result in only proper...

Page 2: ...50A Material Spring case Cast bronze Cast stainless steel Cast bronze Valve valve seat Stainless steel Spring Stainless steel O ring Composition rubber Closed lever type AL 150TML and AL 140TML are a...

Page 3: ...40A 135 2 Rc 1 1 2 41 60 60 64 50A 208 2 Rc 2 51 75 76 76 Nominal size Dimensions mm Weight kg H AL 150T AL 140T AL 150TML AL 140TML AL 150TR AL 150T AL 140T AL 150TML AL 140TML AL 150TR 15A 128 128 1...

Page 4: ...tmosphere by the pop action of valve 3 the force of fluid lift is lowered At this point the repelling force of the spring 8 becomes larger than the force of fluid lift and thus the valve closes In add...

Page 5: ...6 2 For water at 20 C accumulation 25 Capacity Yoshitake standard m3 h Nominal size Blowout area mm2 Set pressure MPa 0 05 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 15A 20 1 0 4 0 5 0 9 1 1 1 3 1 5 1 6...

Page 6: ...pectively Failure to follow this notice may prevent the product from functioning properly 3 Install the product vertically with the cap 13 facing upward Failure to follow this notice may prevent the p...

Page 7: ...not be subject to the stress caused by thermal expansion of equipment and by dilatation of the exhaust pipe due to thermal action of blowout 2 Inner diameter of exhaust pipe shall be more than that o...

Page 8: ...by lever operation is possible Size Differential pressure between set and inlet pressures 15 25A 1 0 MPa or less 32 40A 0 6 MPa or less 50A 0 4 MPa or less 8 3 Troubleshooting Trouble Cause Remedy Le...

Page 9: ...isassembled and cleaned Please contact us 2 Sliding parts of the valve 3 and valve seat 2 do not move smoothly 2 The product needs to be disassembled and cleaned Please contact us 3 The normal working...

Page 10: ...e limited numbers of turns Using tools or turning it with excessive force causes damage to the handle or malfunction of the product Procedure for adjusting the set pressure of AL 150TR See Fig 2 Struc...

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