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Japan, KONAN ELECTRIC, Rotary Actuator
KONAN TA2 Series Rotary Actuator With Electric-Pneumatic Positioner Single-Acting Type
Product Made In Japan
Manufacturer: KONAN ELECTRIC
Model: TA2 Series
Specifications
| Bore size［mm］ | φ 63 | φ 80 | φ 100 | φ 125 | φ 160 |
| Operating fluid | Compressed air | ||||
| Operating pressure | 0.3 〜 0.7MPa | ||||
| Proof pressure | 1.05MPa | ||||
| Operating temperature | －5〜 60℃（In case of 5℃ or less, ensure to be removed any water contained for prevention of freezing.） | ||||
| Output torque | Please refer to the“Table of Output Torque”（P21 〜 P23）
（The load torque is recommended not to exceed 50% of the valve in the output torque table.） |
||||
| Rotating angle | 90° | ||||
| Angle adjustment range | ± 5°both end | ||||
Characteristics of the Positioner
| Input signal | 4 〜 20mA DC 250 Ω |
| Cam characteristics | Linear characteristics |
| Linearity | ± 5％ F.S |
| Hysteresis | 2％ F.S |
| Repeatability | 3％ F.S |
| Sensitivity | 3％ F.S |
| Seismic capacity | 1％ F.S |
| Air consumption | 11L/min〔ANR〕（SUP 0.4MPa, Output pressure 75％） |
| Structure | Flame-proof enclosure construction：Exd Ⅱ BT6X |
| Main component material | Body, Cover： Aluminum |
Model Code
Operating principle
When the torque motor (1E) receives input power, its armature (2Eb) pivots in the direction of arrow A around the fulcrum plate spring (3). This pivot separates the flapper (5) from the nozzle (4), reducing the pressure in the nozzle’s back-pressure chamber (12) and upsetting its balance with the pressure chamber (11). Consequently, the relay spool (13) actuates, opening port A (15a), which connects the lower cylinder pressure chamber (17e) to the exhaust port (9) and causes the stem (18) to descend. This action is transmitted through the feedback lever (19), cam lever (20), range arm (23), and zero arm (26), extending the feedback spring (7) and continuing until the spring’s tensile strength equals the torque motor’s (1E) absorption power. Thus, the stem (18) moves in proportion to the input signal.
Characteristics
Dimensions of the Positioner
External Dimensions
〈φ 63・80・100〉
〈φ 125・160〉
- Kouei is Distributor/Agent of KONAN.
- Other items of KONAN.
- Request the quotation for KONAN.
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