Flowserve MD-200 Series Durametallic Manual do Utilizador descarregar pdf (Página 2)

1 Equipment Check

1.1 Follow plant safety regulations prior to equipment disassembly:

• Consult the plant Material Safety Data Sheet (MSDS) les for

hazardous material regulation.

• Wear designated personal safety equipment.

• Lock out the mixer or agitator motor and valves to and from

the vessel.

• Relieve any pressure in the vessel.

• Use plant vessel entry procedures if it is necessary to enter

the vessel.

1.2 Secure the mixer or agitator shaft in accordance with the mixer

or agitator manufacturer’s instructions.

1.3 Remove the coupling and/or drive to access the seal area.

Follow the manufacturer’s instructions.

1.4 Remove the existing seal assembly.

1.5 Remove all burrs and sharp edges from the shaft and vessel

ange area. The shaft and vessel ange must be free of burrs,

sharp edges, cuts, dents, or corrosion that might cause leakage

past the sleeve packing O-rings and the vessel ange O-ring

gasket.

1.6 Check requirements for the shaft and the vessel ange.

They must agree with the dimensions shown in Figure 1.

1.7 Check the assembly drawing accompanying the seal assembly

for specic seal design data, materials of construction, dimensions,

and recommended piping connections.

1.8 Check the shaft OD, vessel ange bolt size, bolt circle, and

distance to the coupling or drive to ensure that these dimensions

agree with the seal assembly drawing provided.

1.9 Handle the seal assembly with care, it is manufactured to

precise tolerances. The sealing faces of the rotors and the stators

are of special importance. These sealing faces are lapped to rigid

specications required for contacting face gas seals. If it becomes

necessary to disassemble the seal, keep these sealing faces

clean and dry at all times and protect them from damage

since they are subject to impact fracture.

The images of parts shown in these instructions may differ visually from the actual

parts due to manufacturing processes that do not affect the part function or quality.

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Flowserve MD-200 Series Durametallic Manual do Utilizador Página 2