How should you handle the setting of regulators in parallel operations before and after work?

In parallel operations, handling regulators requires maintaining a consistent pressure across the system to prevent any disturbance or imbalance. Leaving the regulators at the same setting while turning them off helps to ensure that, when they are turned back on, they are ready to operate at the same conditions they were set to before any work began. This method avoids abrupt changes in pressure that can occur if the regulators are reset or adjusted differently, which could lead to instability in system performance.

Turning them off while keeping the settings allows for a safer and more stable operation as the work is performed and avoids the need for fine-tuning after the work is completed. Once the work is done, the regulators can be re-energized in their original positions, allowing the system to function as intended without additional adjustments. This approach to regulator management ensures the safety and efficiency of the operation by minimizing risks associated with fluctuations in system pressure.