Dresser Valve Valve Technician Interview Questions and Answers

To check calibration and leak testing, follow these steps:

• For calibration, use calibration standards and equipment to verify the accuracy of the valve's measurements.

• Perform a leak test by pressurizing the valve and checking for any leaks using methods like bubble testing or pressure decay testing.

• Ensure proper documentation of calibration and leak test results for future reference and compliance purposes.

To disassemble a valve, follow these steps: 1. Shut off the valve. 2. Release pressure. 3. Remove the bonnet. 4. Take out the stem and ball. 5. Clean and inspect the parts.

• Shut off the valve to stop the flow of fluid or gas.

• Release any pressure in the valve by opening a downstream valve or venting it.

• Remove the bonnet, which is usually held in place by bolts or screws.

• Take out the stem and ball, which may require using...read more