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WCB_D4_D4SL_sch5_US.indd
D4 / D4 SL Schedule 5 Series
Double Seat Mix Proof Valves
Instruction Manual: US - rev. 0
Waukesha Cherry-Burrell
®
brand D4 / D4 SL Schedule 5 Valves
10. Maintenance
Note!
The maintenance intervals are different depending on the application
and must be determined by the operator performing regular checks.
- Compressed air is not required to remove the valve.
Caution!
Do not clean the valve with products containing abrasive or polishing
substances. Abrasive and polishing agents are especially harmful to the
upper and lower shaft.
Requir
ed tools for standard maintenance:
- 1 x wrench
SW13, SW24, SW30, SW32
- 2 x wrench
SW17
- 1 x Allen key SW3, SW6
- long hook with 45° tip
- double joint forceps
- assembly stick D4 for assembly of lower shaft seal, see page 23
- disassembly and assembly tool for lower shaft seal, see page 23
- assembly tool for middle seal, see page 24
- assembly tool for seat seals, see page 25
- For valve maintenance SPX FLOW offers complete seal kits (see spare
parts lists).
Caution!
The use of seal materials being compatible with the product, application
and CIP liquids must be ensured. In case of doubt, contact your local
SPX FLOW representative.
- For seal replacement instructions, see section 11.2 to 11.3.
- Provide all seals with a thin layer of grease before their installation!
Recommendation:
Assembly grease for EPDM, HNBR and FPM (Viton)
0,75 kg/tin
- Part no. H147382
60 g/tube
- Part no. H147381
- Provide all screws and threaded parts with grease before their
installation.
Recommendation: Klüber paste UH1 84-201
60 g/tube
- Part no. H147379
Recommendation for actuator:
Pneumatic grease:
25 ml/tube
- Part no. H164725
- For valve assembly instructions, see section 11.3.
!
!
!
