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8.4 Procedure for set pressure adjustment
DO NOT ADJUST THE SET PRESSURE OF THE MODELS OTHER THAN AL-150TR.
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.
1. Do not adjust the set pressure of the models other than AL-150TR.
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.
Nominal
size
15A
0.05
20A
0.05
25A
0.05
32A
0.05
40A
0.05
50A
0.05
Table 2 Set pressure range of AL-150TR
Set pressure range (MPa)
A
B
0 .2
0.21
0 .4
～
～
0 .2
0.21
0 .35
～
～
0 .2
0.21
0 .35
～
～
0 .2
0.21
0 .4
～
～
0 .2
0.21
0 .4
～
～
0 .2
0.21
0 .4
～
～
Warning
Caution
C
D
0.41
0 .55
0.56
～
～
0.36
0 .45
0.46
～
～
0.36
0 .45
0.46
～
～
0.41
0 .65
0.66
～
～
0.41
0 .65
0.66
～
～
0.41
0 .65
0.66
～
～
9
Besides, set pressure
E
0 .75
0.76
1 .0
～
0 .6
0.61
0 .75
～
0 .55
0.56
0 .8
～
1 .0
0 .8
0.81
1 .0
～
0 .8
0.81
1 .0
～
E PDT-193d
■
F
0.76
1 .0
～
0.81
1 .0
～
■
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