Alfa Laval Air Actuated Valve 771L-27M-80-X-316L

IMPORTANT: The TYPE 80 actuator does not have a red indicating cap like the type 10, 20 or 30 actuator. Cover the actuator stem threads with tape to protect the new bushing and packing from damage during assembly

- Separate adjustment knob and cover plate by removing four bolts

- Remove E-ring and unscrew adjustment nut from actuator stem completely

- Remove spacer, end cap, bushing, retainer, and o-ring from actuator

- Lubricate o-ring with L1011 Sanitary Silicone Spray. Insert o-ring, retainer, and bushing into actuator

- Install three o-rings into end cap. Place end cap over actuator stem aligning air port labeled MID with unthreaded thru hole in actuator

- Place spacer on top of end cap, screw adjusting nut on actuator stem, and install E-ring in groove on actuator stem

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