What to do if the plate of Hawle Control Unit does not open or close?
If the Hawle Control Unit's plate does not open or close, the issue might stem from a drive fault or a 100% drive circuit fault, possibly due to an end switch or mechanical stop. For drive faults, consult the supplied drive instruction manual. If the fault is within the drive circuit, consider replacing the wedge nut.
Why is there leakage in the valve opening of my Hawle Control Unit?
Leakage in the valve opening of a Hawle Control Unit can occur for several reasons. The wedge may not be closing completely, in which case you should refer to the supplied drive instruction manual. Alternatively, the wedge may be mechanically damaged, requiring a replacement. Deposits on the wedge can also cause leakage, which can be resolved by relubricating the spindle. Finally, a worn wedge nut can cause the leakage.
Notes are highlighted by symbols in this manual.
The valve is intended to shut off or allow media flow within permitted pressure/temperature limits.
Every valve is labeled with specific order, part, and serial number information.
Instructions for safe transport, storage, and handling of the valve to prevent damage.
Specialist personnel must perform installation, adhering to safety and intended use requirements.
Ensure installation conforms to intended use, pipe section is clear, and environment is safe.
Pressure limits and flow direction must be observed during installation for safe operation.
The valve and drive may need support to avoid deformations and functional problems.
Steps for installing the valve, ensuring alignment and proper sealing for function.
Final inspection by Hawle according to EN12266-1 for pressure testing within a system.
Instructions for safe removal of the valve from the pipeline, including depressurization.
Safety instructions for operation and maintenance, emphasizing intended use and specialist personnel.
Describes manual and drive actuation, and recommended frequency for rare actuation valves.
Required maintenance is a visual check of leak-tightness as long as seals function correctly.
Lists common problems like flange leakage and valve opening issues with their causes and remedies.
Detailed list of valve parts and their materials, with diagrams for different sizes.
Step-by-step guide for modifying DN50-200 valves for electric actuator use.
Steps for adapting DN250-600 valves for electric actuators, starting with flange removal.
Steps for modifying DN250-600 valves with a newly coated spindle for electric actuators.
General| Brand | Hawle |
|---|---|
| Model | E2 |
| Category | Control Unit |
| Language | English |
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