Instruction Manual: Fisher EHD, EHS, and EHT …

Instruction manual EH (1-1/2x1 through 8x6). D100394X012 July 2017. Fisher EHD, EHS, and EHT Valves NPS 1-1/2x1 through NPS 8x6. Contents Figure 1. Fisher EH Valve with 657 Actuator Introduction .. 1. Scope of manual .. 1. Description .. 2. Specifications .. 3. Educational Services .. 3. Installation .. 4. Maintenance .. 6. Packing Lubrication .. 7. Packing Maintenance .. 7. Replacing Packing .. 8. Trim Removal .. 12. Valve Plug Maintenance .. 14. Lapping Seats .. 15. Trim Replacement .. 16. Retrofit: Installing C seal Trim .. 21. Replacement of Installed C seal Trim .. 24. Trim Removal (C seal Constructions) .. 24. Lapping Metal Seats (C seal Constructions) .. 26. Remachining Metal Seats (C seal Constructions) .. 26. Trim Replacement (C seal Constructions) .. 26. Parts Ordering .. 28. Parts Kits .. 28. Parts List .. 29 W3387. Introduction Scope of manual This Instruction manual includes installation, maintenance, and parts information for the Fisher EHD, EHS, and EHT.

Instruction Manual D100394X012 EH (1-1/2x1 through 8x6) July 2017 5 3. The control valve must be installed with the actuator vertical above the valve body for proper operation.

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