background image

EPDT-193d

 

9

 
 
8.4 Procedure for set pressure adjustment 
 
DO NOT ADJUST THE SET PRESSURE OF THE MODELS OTHER THAN AL-150TR. 

 

          Warning 

1.  To adjust the set pressure of AL-150TR, turn the handle [18] slowly at the rotation of 1/4-1/3 and confirm 

the operation each time. Be careful of the sudden blowout when the handle are turned too much. In case 
of blowout, step away from the product immediately.   
* Failure to follow this notice may result in injury and scalds due to blowout in case that fluid is hot. 

2.  Be sure to wear gloves while operating the handle of AL-150TR. 

* Failure to follow this notice may result in burn and scalds in case that fluid is hot. 

 

          Caution 

1.  Do  not  adjust  the  set  pressure  of  the  models  other  than  AL-150TR.    Besides,  set  pressure 

adjustment for AL-150TR must be done according to the set pressure range shown in Table 2. 

2.  For AL-150TR, be sure to turn the handle or tighten/loosen the lock nut by hand. Be careful not to 

turn it with excessive force or turn too much. 
* Handle can be turned only within the 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 Structure.”) 

1.  Loosen the lock nut [12] by turning it counterclockwise by hand. (Outer peripheral surface of 

the lock nut [12] is knurled for easy turning by hand.) 

2.  To increase the set pressure, turn the handle [18] clockwise. To decrease the set pressure, 

turn the handle [18] counterclockwise. Each turn must be slow and 1/4 to 1/3 of full turn. Also 
check the operation of the product per each turn. 

3.  After the completion of adjustment, tighten the lock nut [12] by turning it clockwise by hand. 

Set pressure adjustment must be done according the set pressure range shown in Table 2. Please 
note that the range differs per size. 
 

Table 2    Set pressure range of AL-150TR 

Nominal 

size 

Set pressure range (MPa) 

15A 

0.05

0.2 

0.21

0.4 

0.41

0.55 

0.56

0.75 

0.76

1.0   

――――

 

20A 

0.05

0.2 

0.21

0.35 

0.36

0.45 

0.46

0.6    0.61

0.75 

0.76

1.0   

25A 

0.05

0.2 

0.21

0.35 

0.36

0.45 

0.46

0.55 

0.56

0.8   

0.81

1.0   

32A 

0.05

0.2 

0.21

0.4    0.41

0.65 

0.66

1.0   

―――――

 

――――

 

40A 

0.05

0.2 

0.21

0.4    0.41

0.65 

0.66

0.8   

0.81

1.0   

――――

 

50A 

0.05

0.2 

0.21

0.4    0.41

0.65 

0.66

0.8   

0.81

1.0   

――――

 

 
 

Содержание AL-150T Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: