If you’re having problems with your hydraulic system, you should check the relief valve first. If it isn’t functioning properly, you can try to clean it or replace it. To do so, disconnect the plumbing at Point B. Loosen the adjusting screw. Then, connect the gauge to the valve. The pressure gauge should show zero or very close to zero. If the reading doesn’t change, then the valve is malfunctioning.
Another way to ensure that your relief valve is functioning properly is to adjust the setting. The adjustment value should be in line with the cut-off setting. If it’s higher, it’s safe to assume that the valve is working properly and the mechanic just assumes it’s functioning as intended. If it’s lower, the mechanic will continue to try to service the system. However, if the pressure in the system rises too quickly, the mechanic will likely assume the valve is not functioning.
Another sign that the pressure relief valve has failed is when the system doesn’t reach its set pressure. This may be due to incorrect calibration. When a change in the plant’s design occurs, valve technicians often forget to recalibrate it for the new operating pressure. Thankfully, there are easy ways to adjust the set pressure and ensure your valve is working correctly. Check the hydraulic relief valve before it fails! It could prevent your production process from stopping.