EMS can revise and repair your valuable control valves. After this process we will guarantee the valve as new including all certification/documentation. Below an example of the revision of a valve.
Step 1. Disassembly of the valve
Step 2. Assess parts
Step 3. Report the findings
Step 4. Coating of the piston
Step 5. Producing new parts
Step 6. Renew the slotted rings
Step 7. Valve, preparing for the pressure test
Step 8. Report of pressure test regarding DIN 3230