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CAUTION
Please refer to the manual attached to the product for procedures for installation and operation.
Tolerance for set temperature
· Temperature tolerance differs according to the thermal bulb, bellows, and capillary tube length. Please refer to the table below.
Model
Application
Capillary tube length
2 m
2-3.5 m
3.5-5 m
* If the set temperature exceeds 100°C, add ±1.0°C.
* "Tolerance for set temperature" is the maximum temperature difference from the set temperature which can be observed
before the valve starts to open from the closed position. Please note that this is not temperature control range.
Special of thermal bulb
<For liquid>
· Thermal bulb with thermal well
Air vent hole
Liquid inlet
Completely discharge the internal pressure from the valves before disassembly.
OB-1, 2, 3, 4, 5, 6
For Liquid
±2°C
±2.5°C
±3°C
Liquid inlet
Air vent hole
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Temperature Regulator – Annex
For Gas
±3°C
±3.5°C
±4°C
Table of minimum length (ℓ) for internal pressure type thermal bulb
A
R 3/4
B
20A or larger 25A or larger 32A or larger
d
19
Nominal size
15-25A
300
32-40A
300
50A
350
65A
550
80A
650
100A
−
125A
−
150A
−
Table of minimum length (ℓ) for external pressure type thermal bulb
A
R 3/4
B
20A or larger 25A or larger 32A or larger
d
19
Nominal size
15-25A
750
32-40A
750
50A
750
65A
750
80A
750
100A
−
125A
−
150A
−
Table of minimum length (ℓ) for internal high pressure type thermal bulb
A
R 3/4
B
20A or larger 25A or larger 32A or larger
d
19
Nominal size
15-25A
350
32-40A
450
50A
550
65A
550
80A
−
100A
−
125A
−
150A
−
Temperature regulator
OB-1G 2G 3G 4G
For Liquid and Gas
±3.5°C
±4°C
±4.5°C
Temperature regulator
(mm)
R 1
R 1-1/4
25
32
200
200
250
200
300
200
350
250
350
300
600
350
600
440
−
440
(mm)
R 1
R 1-1/4
25
32
400
350
400
350
400
350
400
350
400
350
600
440
600
440
−
−
(mm)
R 1
R 1-1/4
25
32
200
200
250
200
300
200
300
250
550
300
600
350
−
440
−
440
-46
13
13
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