Velocity Edge GX325 Manual do Utilizador descarregar pdf (Página 42)

Leakage Between the Plates to the Outside of the Unit

(See Figure 49, Item 3)

Mixing of Fluids

PROCEDURES AND OBSERVATIONS SOLUTIONS

1. Mark the area of the leak with a felt tip marker.

2. Check the plate pack dimensions to insure they agree with

Table 3. Overtightening may cause plate damage.

Depressurize unit and adjust the plate pack as necessary.

Disassemble unit per procedure on page 31.

3. Look for mislocated, loose or damaged gaskets. Relocate gaskets, reglue loose gaskets and replace damaged

gaskets.

4. Check for plate damage in the area. A damaged plate usually must be replaced. For temporary

duty, if the damaged plate has four holes and an adjacent plate

(front or back) has four holes, remove both plates and retighten

the plate pack according to Table 3. Contact the factory if

temporary operating characteristics need to be developed for

a smaller number of plates. See “How to Find a Defective

Plate” on page 43.

5. Make sure the plate pack sequence is A-B-A-B-etc., see

Figure 15.

Inspect the plate pack for damage and place the plate assemblies

in the correct order.

PROCEDURES AND OBSERVATIONS SOLUTIONS

1. Make sure the piping is connected to the correct locations

on the heat exchanger.

Relocate piping to the correct connections.

2. Make sure the plates are properly arranged on each adjacent

plate according to the assembly drawing (A-B-A-B...

arrangement).

Open the plate pack and replace the plate gasket assembly.

3. Make sure the gaskets are correctly oriented on the plates

with the “bleed port” of each gasket facing away from the

plate surface. See Figures 32 through 34.

Replace gaskets correctly.

4. Follow the steps described in “How to Find a Defective

Plate” on page 43. If a leak is found, use a felt tip marker

to locate the place.

Remove and replace as discussed on page 33. Inspect the

plate pack for damage and place the plate assemblies in the

correct order.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 48

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Velocity Edge GX325 Manual do Utilizador Página 42