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General| Brand | metso automation |
|---|---|
| Model | neles NP727 |
| Category | Valve Positioners |
| Language | English |
Explains the force balance principle behind the positioner's operation, detailing how signal pressure and feedback forces interact.
Lists key technical parameters such as signal pressure ranges, split ranges, and supply pressure.
Important warnings regarding performance limitations, dismantling pressurized units, and moving parts.
Step-by-step instructions for mounting the NP700/S1 positioner onto actuators with VDI/VDE 3845 mounting.
Procedure for mounting the NP700/S2 positioner onto Metso Automation Series B actuators.
Details on connecting air supply, signal air, and recommendations for sealants and air quality.
Specifies the requirements for clean, dry, and oil-free instrument air, including pressure ranges.
Guidance on selecting and mounting the changeover piece (D or R) according to the desired function.
Instructions for selecting the cam plate side (A/B) and setting the roller contact point for desired operation.
Step-by-step guide for setting the zero and range adjustments for rotary and butterfly valves.
Step-by-step guide for replacing the diaphragm (14), including O-ring and spring plate checks.
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