KLST-B is the standard on/off electric actuator structure for open-close rotary valve automation. Use it when the buyer needs simple fully open and fully closed control.
KLST-02-B-AC24V - KLST: normal electric actuator
- KLSTZ: explosion-proof type
- KLSTA: waterproof type
- Choose by valve torque, DN size and service conditions
- B: Standard on/off
- Confirm actual power supply and control cabinet design
Selection use
Use this page when the inquiry asks for KLST-B Standard On-off Electric Actuator or related examples such as KLST-02B, KLST-05B, KLST-10B, KLST-20B, KLST-40B, KLST-60B.
Torque selection
The catalog warns that valve type, manufacturer and service environment affect actual torque. Use 60%-80% of actuator rated torque as the valve working-torque reference and confirm with Kailing before final selection.
RFQ confirmation points
Ask for valveType, dnSize, workingTorque, voltage, openCloseControl, environment, quantity. Include valve drawings or an existing actuator nameplate when replacing a unit.
| Parameter | Value |
|---|---|
| Actuator family | KLST normal electric actuator, KLSTZ explosion-proof type, KLSTA waterproof type |
| Size codes | 02, 05, 10, 20, 40, 60, 100, 200 and 400; selection table also lists KLST-600 |
| Voltage options | DC24V, AC24V, AC110V, AC220V and AC380V |
| Torque range in selection table | 6N.m to 6000N.m by model |
| Action time range in selection table | 7s to 150s for 0-90 degrees by model |
| Selection principle | Choose actuator rated output torque so 60%-80% of rated torque covers the valve working torque |
| Evidence boundary | Catalog data is a selection reference; confirm actual valve torque, service environment, wiring and current drawing before final quotation |
| Structure | B: standard on/off |
| Best fit | Simple open-close control for ball valves, butterfly valves and ventilation valves |
KLST-B Standard On-off Electric Actuator sizing reference
| Model | Output torque | Action time 0-90 degrees | Power | Valve sizing reference |
|---|---|---|---|---|
| KLST-02 | 6N.m | 7s | AC110/AC220 50/60Hz or DC24V | hard-seal butterfly DN25; soft-seal butterfly up to DN20 |
| KLST-05 | 15/30/50N.m | 10/20/30s | AC110V, AC220V, AC380V, 50/60Hz, DC24V | soft-seal butterfly up to DN65; ball valve up to DN40; ventilation butterfly DN50-DN80 |
| KLST-10 | 50/60/100N.m | 13/15/20/30s | AC110V, AC220V, AC380V, 50/60Hz, DC24V | hard-seal butterfly DN40-DN65; soft-seal butterfly DN80-DN125; ball valve DN40-DN50 |
| KLST-20 | 80/100/150/200N.m | 9/15/20/30/60s | AC110V, AC220V, AC380V, 50/60Hz, DC24V | hard-seal butterfly DN80-DN125; soft-seal butterfly DN150-DN200; ball valve DN65-DN80 |
| KLST-40/60 | 150/250/400/600N.m | 9/15/20/30/60s | AC110V, AC220V, AC380V, 50/60Hz, DC24V | hard-seal butterfly DN150-DN200; soft-seal butterfly DN250; ball valve DN100-DN125 |
| KLST-100 | 800/1000N.m | 30/50s | Confirm by model | hard-seal butterfly DN250; soft-seal butterfly DN300-DN350; ball valve DN150-DN200 |
| KLST-200 | 2000N.m | 100s | Confirm by model | hard-seal butterfly DN300-DN400; soft-seal butterfly DN400-DN500; ball valve DN250-DN300 |
| KLST-400 | 4000N.m | 100s | Confirm by model | hard-seal butterfly DN400-DN500; soft-seal butterfly DN500-DN600; ball valve DN300-DN400 |
| KLST-600 | 6000N.m | 150s | Confirm by model | printed soft-seal butterfly range requires confirmation; ball valve DN400-DN500 |
DN ranges are catalog selection references only. Actual actuator selection must be based on valve working torque and service environment.
KLST-B Standard On-off Electric Actuator source evidence
| Structure | Examples | Evidence | Source pages |
|---|---|---|---|
| Standard on/off | KLST-02B, KLST-05B, KLST-10B, KLST-20B, KLST-40B, KLST-60B | Ordering-code section lists B as the standard on/off structure, and page 95 provides torque, action-time, voltage and valve-size selection data. | 95, 96, 97, 98, 99, 100 |
Frequently Asked Questions
- FAQ Which source supports KLST-B Standard On-off Electric Actuator?
This product detail is based on Kailing catalog page 95, 96, 97, 98, 99, 100. - FAQ Can KLST be selected by DN size only?
No. DN ranges are references. Final selection should confirm working torque, valve type, medium, pressure, control signal and environment.
Need a quotation?
Send the model, medium, pressure, port size, body material and quantity for review.