Alfa Laval Air Actuated Valve 771L-21M-10-X-316L

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

Actuator rolled on a flat surface for uniform coverage

Sign off on the actuator lubrication

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

Check for worn or damaged components

Replace all worn or damaged components as required

Spray stem and o- ring with Sanitary Lubricant

Check if all valve bodies are mated properly

Secure valve bodies with clamps

Check if all clamps are tightened securely

Warning: Ensure the valve stem is secured before proceeding

Nylon Locking Pin located in the middle of the stem thread

Old nylon pin punched out with an 1/8 inch or smaller diameter punch

Sign off on the actuator stem replacement

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 a photo of the inspected valve

Sign off on the valve inspection