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Quarter-turn electric actuators engineered for reliable ball and butterfly valve automation. A dome type external position indicator, UV-stable housing and captive bolt design simplify field servicing, while modulating control and watertight options extend the range into demanding process and outdoor applications.
8 – 1200 Nm
90° ± 5°
40%
KE001 – KE120
8 – 1200 Nm
90° ± 5°
-20°C to +60°C
40%
Dome type mechanical (flat side optional)
IP68 — Watertight, 5m / 120hr
110V/220V/380V/440V AC · 24V DC
2 each Open/Close, 250VAC/5A (KE004+)
Spanner, wrench or clutchless handwheel (model dependent)
Wire lead (KE001/002) or Terminal box PF1/2 (KE004+)
Optional, AC only
4–20mA, 0–10V, 2–10V, 1–5V, 0–5V (option)
| Model | Max Torque (Nm) | Op. Time 50/60Hz (sec) | Motor Class/Output | Manual Turns | Weight (kg) |
|---|---|---|---|---|---|
| KE001 | 8 | 14.5/12 | E/2W | N/A | 0.7 |
| KE002 | 20 | 17.5/14.5 | E·B/10W·10W | 1.5 | 0.9 |
| KE004 | 40 | 12/10 | E·B/10W·10W | 2 | 1.5 |
| KE005 | 50 | 13 (100–250V AC) | B·B/10W·10W | 2 | 1.3 |
| KE006 | 60 | 18/15 | E·B/10W·10W | 2 | 1.9 |
| KE008 | 80 | 17/14 | F·B/10W·10W | 2.5 | 2.6 |
| KE010 | 100 | 22/18 | F·B/10W·15W | 2.5 | 3.0 |
| KE016 | 160 | 28/23 | F·B/15W·15W | 4 | 6.2 |
| KE028 | 280 | 40/33 | F·B/15W·15W | 4 | 8.9 |
| KE040 | 400 | 40/33 | F·B/25W·40W | 5.5 | 9.4 |
| KE050 | 500 | 40/33 | F/40W | N/A | 9.4 |
| KE080 | 800 | 51/42 | F/60W | N/A | 26.0 |
| KE120 | 1200 | 51/42 | F/90W | N/A | 26.0 |
Recommended model by valve size — 2-way ball and butterfly valves, 10K / #150 rating.
| Valve Size | Ball Valve | Butterfly Valve |
|---|---|---|
| 1/2" – 3/4" (15A/20A) | KE001 / KE002 | — |
| 1" (25A) | KE004 | KE002 |
| 1-1/4" – 1-1/2" (32A/40A) | KE005 | — |
| 2" (50A) | KE006 | KE004 |
| 2-1/2" (65A) | KE008 | — |
| 3" (80A) | KE010 | — |
| 4" (100A) | — | KE016 |
| 5" – 6" (125A/150A) | — | KE028 |
| 8" (200A) | — | KE040 |
| 10" (250A) | — | KE050 / KE080 |
| 12" – 16" (300A–400A) | — | KE080 / KE120 |
Dome Type Indicator
Open and close status can be checked even from a long distance through the external position indicator.
UV-Stable Intermediate Cap
Even after long periods of usage and exposure to sunlight, the plastic cap's letters remain clear and visible.
Captive Bolt
Prevents the bolt from being lost even when the cover is opened for wiring.
Accessible Terminal Box
Easy and safe wiring by opening only the terminal box — no need to disassemble the entire actuator body (except KE001/KE002).
Modulating Control Option
4–20mA, 0–10V, 2–10V, 1–5V and 0–5V signal support for proportional valve positioning.
Watertight Option
IP68-rated watertight option available, tested to 5m submersion for 120 hours.
Wide Torque Range
8 to 1200 Nm across the KE series covers small instrumentation valves through heavy-duty industrial applications.
Multi-Voltage Support
110V, 220V, 380V and 440V AC plus 24V DC options across the range for flexible installation.
Watertight
IP68 rated, tested to 5m submersion for 120 hours.
Electric Torque Switches
Available on KE010 and above for torque-based overload protection.
Modulating Control (4–20mA)
Single-phase proportional positioning via 4–20mA signal.
Modulating Control (Multi-Signal)
4–20mA, 0–10V, 2–10V, 0–5V or 1–5V signal support, 1-phase or 24V DC.
Local Control
Includes electric torque switch, available in 1-phase or 3-phase.
Local & Modulating Control
Combines local control with modulating signal input, torque switch included.
24V DC Control Board (2 / 3 Wire)
DC control board options for simplified wiring on select models.
Thermal Protection
AC only — standard included on most models.
Heater
AC only — anti-condensation heater, standard included on select models.
Thermal Protection + Heater
Combined thermal protection and heater option.
KOSAPLUS also offers explosion-proof and alternative mechanism variants alongside the KE series.
KE Series — Spur Gear
KE001 – KE008Standard electric quarter-turn, spur gear mechanism.
KE Series — TR Gear (Scotch Yoke)
KE010 – KE200Higher torque scotch yoke mechanism.
KP Series — Explosion Proof
KP002 – KP050Ex d IIB T4 / Ex db IIB T4 Gb rated, IP67.
KS Series — TR Gear (Scotch Yoke)
KS001 – KS002Fast operating, 10–25 Nm.
KR Series — Rack & Pinion
KR002 – KR006In development.
8 – 1200 Nm
Torque Range
90° ± 5°
Travel Angle
IP68
Watertight Option
13 Models
KE001 – KE120
Ex d IIB T4
Explosion Proof (KP Series)