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657 Actuator (30-70 and 87)
Instruction Manual
Form 1900
February 2007
17
Figure 8. Type 657 Size 87 Actuator
APPLY LUB
50A8767–C / IL
Parts Kits
Key Description Part Number
Kits for Side-Mounted Handwheels
Retrofit kit includes parts to add a side-mounted handwheel.
Size 34 push down to close 30A8778X0A2
Size 34 push down to open 30A8778X0B2
Size 40 push down to close 30A8778X0C2
Size 40 push down to open 30A8778X0D2
Size 45 & 46 push down to close 40A8779X0A2
Size 40 & 60 push down to open 40A8779X0B2
Size 50 & 60 push down to close 40A8779X0C2
Size 50 & 60 push down to open 40A8779X0D2
Kits for Top-Mounted Handwheels
Retrofit kit includes parts to add a top-mounted handwheel. Kit 1
includes the handwheel assembly only. Kit 2 includes kit 1 and a new
diaphragm case that is required to mount the handwheel assembly.
KIT 1
Size 30 28A1205X012
Sizes 34 & 40 28A1205X022
Sizes 45, 50, & 60 28A1205X032
Sizes 70 & 87 CV8010X0032
KIT 2
Size 30 28A1205X042
Sizes 34 & 40 28A1205X052
Sizes 45 & 50 28A1205X062
Sizes 46 & 60 28A1205X072
Sizes 70 & 87 CV8010X0042
Parts List
Note
Part numbers are shown for recommended spares
only. For part numbers not shown, contact your
Emerson Process Management sales office.
Actuator Assembly (figures 6, 7, or 8)
Key Description Part Number
1 Upper Diaphragm Casing
2* Diaphragm
Molded nitrile/nylon
Standard construction
Size 30 2E791902202
Sizes 34 & 40 2E670002202
Sizes 45 & 50 2E859502202
Sizes 46 & 60 2E859702202
Sizes 70 & 87 2N126902202
With down travel stop (style 2)
Size 30 2E800002202
Sizes 34 & 40 2E669902202
Sizes 45 & 50 2E859602202
Sizes 46 & 60 2E859802202
Sizes 70 & 87 2N130902202
Molded silicone/polyester
Standard Construction
Size 30 18B2713X082
Sizes 34 & 40 18B2713X092
Sizes 45 & 50 18B2713X102
*Recommended spare parts