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General| Brand | Farris Engineering |
|---|---|
| Model | 1856M |
| Category | Control Unit |
| Language | English |
Details disassembly steps for Series 1850, 1852, 1855, and 1856M valves, including mounting and initial part removal.
Details disassembly steps for Series 1890, 1892, 1895, and 1896M valves, covering initial mounting and part removal.
Procedure for removing and reassembling the open lifting lever mechanism on the valve.
Details on disassembling and reassembling packed lifting lever constructions for various valve types.
Assembly instructions for Series 1850, 1852, 1855, and 1856M valves, covering part preparation and installation.
Assembly instructions for Series 1890, 1892, 1895, and 1896 valves, including disc, stem, and bonnet installation.
Procedure for setting the valve's pressure and testing its performance, including cold differential set pressure.
Methodology for checking valve seat leakage after set pressure has been verified, for metal and soft seated valves.
Procedure for testing the secondary pressure zone of valves designed for closed systems, checking for leaks.
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