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Voltage: 24VAC\ 24VDC \ 220VAC
Control mode: Three-digit floating point(three-wire, two-control)
Stroke: 30mm\ 60mm
Torque: 1000Nm\ 3000Nm
Material: die-cast aluminium
Nominal pressure: PN16\ PN25
Applicable valves:cast iron, cast steel, stainless steel
Option: power failure reset function, electric heating function
Direct stroke electric actuators are used in conjunction with regulating valves, mainly for flow regulation in heating systems, HVAC systems, water supply systems, and production processes. They require fluids with good dynamic stability, low noise, and low leakage levels.
Execution | 1000N、3000N、5000N |
Supply Voltage | AC24V/AC220V |
Signal | 0-10V/4-20MA/RS485/ three-bit floating point |
Drive stroke | 30mm/60mm |
Protection class | IP67、IP68 |
Motion type | Mechanical gearing |
Motor type | Permanent magnet synchronous motors |
Screen display | Opening values, modes, alarms |
Adjustment range of opening | 0-100% |
Shell material | Die-cast aluminium, nylon |
Ambient Temperature | -15℃~ 55℃ |
Optional Features | With power failure reset function, with valve position feedback, with automatic calibration |
Capable of collecting 2 pressure or temperature signals (supply and return) |
Selection Parameters | |||||||
Size (DN) |
Kvs (m³) |
Stroke | SKD 1000N |
SKC 2800N |
NVK10 1000N |
NVK30 3000N |
NVK50 5000N |
DN32 | 12 | 30mm | ● | ○ | ● | ○ | ○ |
DN40 | 19 | ● | ○ | ● | ○ | ○ | |
DN50 | 31 | ● | ○ | ● | ○ | ○ | |
DN65 | 49 | ● | ○ | ● | ○ | ○ | |
DN80 | 78 | ● | ○ | ● | ○ | ○ | |
DN100 | 124 | ● | ○ | ● | ○ | ○ | |
DN125 | 200 | 30mm | ○ | ● | ○ | ● | ○ |
DN150 | 300 | ○ | ● | ○ | ● | ○ | |
DN200 | 420 | ○ | ● | ○ | ● | ○ | |
DN250 | 580 | ○ | ● | ○ | ● | ○ | |
DN300 | 780 | ○ | ● | ○ | ○ | ● | |
DN350 | 870 | ○ | ● | ○ | ○ | ● | |
DN400 | 3950 | 60mm | ○ | ○ | ○ | ○ | ● |
DN500 | 5250 | ○ | ○ | ○ | ○ | ● | |
● represents an optional actuator ○ represents non-selectable actuator |
No. | Toggle in down | Toggle on |
1 | Reverse stroke, stem down valve opens | Positive stroke, stem down Valve closed |
2 | Input signal 0-10V | Input signal 4-20mA |
3 | The actuator does not validate the stroke after power on | Actuator validation stroke after power on |
4 | Signal off | Signal off to open |
5 | Analogue control | Three-digit floating-point control |
6 | 485 communication closed | 485 communication opens |
7 | Motor low speed operation | Motor running at high speed |
8 | Relay off | Relay opens |