Alfa Laval Air Actuated Tank Outlet Valve 762-21M-20S-X-316L

Inspect Valve Body Seat(s) for nicks and scratches and other signs of excessive wear

Inspect Valve Stem & Seat(s) rubber or PTFE seat(s) for signs of cracking, tearing, checking, or excessive wear

Inspect stem finish for galling, nicks, or scratches

Inspect Split Bushing for signs of cracks, nicks, scratches or excessive wear on inside diameter

Inspect O-ring(s) for cuts, abrasions, flat spots, or other damage

Upload photos of any damage found

Sign off on the valve inspection

Warning: Disconnect and remove actuator completely from valve before proceeding

Bushing and packing failure check

If one end fails, both ends of the actuator should be serviced

Upload a photo of the removed actuator

Check for worn or damaged components

Replace all worn or damaged components as required

Sanitary Lubricant applied on stem and o-ring?

Oil injected into the unthreaded thru hole in each end of the actuator

Actuator rolled on a flat surface for uniform coverage of lubricant

Sign off on the actuator lubrication

Warning: Ensure the valve is not under pressure before starting the procedure

Is the valve stem loose due to vibrations?

If the valve stem is loose, proceed with the following steps

Was the old nylon pin punched out successfully?

Upload a photo of the removed old nylon pin

Was a new nylon locking pin inserted successfully?

Upload a photo of the inserted new nylon pin

Sign off on the actuator stem replacement