The KK900 Intelligent Valve Positioner is an intelligent valve positioner based on piezoelectric valve technology. It can receive 4-20mA instructions from the central control room and control the valve position to the specified location. The actuation method can be single-acting (spring return) or double-acting (air open/close). The positioner is a two-wire instrument that obtains power supply voltage from the 4-20 mA input signal.
Simple installation with automatic initialization (range and zero-point adaptive adjustment)
Easy operation: local operation and configuration via three buttons and dual-line display
Online adaptive program ensures high-quality control
Extremely low air consumption during steady-state operation, negligible
"Tight closing" function (ensures maximum seating pressure on the valve seat)
Numerous functions can be achieved through simple configuration, e.g., setting characteristic curves and limits
Same device model for both linear and rotary actuators
Few moving parts, insensitive to vibration
| Item Type | KK900 |
| Operation Temperature | -30~80℃ |
| Explosion Proof Form | Ordinary type, intrinsic safety type |
| Input Signal | DC4~20mA |
| Stroke | 10-200mm or 0-120℃ |
| Gas Source | Pressure 0~0.6Mpa; No oil, no moisture, no dust or dirt |
| Impedance | Less than 450Ω |
| Air Connection | NPT1/4 |
| Electrical Interface | NPT1/2, G1/2 |
| Output Characteristic | Linear, equal percentage (1:25,1:5025:1,50:1), customizable |
| Linearity | ±0.5%FS. |
| Repeatability | ±0.4%FS. |
| Sensitivity | ±0.5%FS. |
| Material | die-casting aluminum |
| Protection Grade | IP66 |
| Weight | 1.8Kg |
| Size (L×W×H) | 218×105×118mm |
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