Pentair SUDMO P740 - Disk Type Non-Return Valve, Type P750

Operating Instructions
Disk type non-return valves
RV Solid series
Type: P740, P741, P745, P750 and P760
DN 010 – 150, OD 0.50” – 6.00”, ISO 008 – 125
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Copy of the original operating instructions
BAA RV Solid
en
14.6.2. Disk type non-return valve, type P750
Valve disassembly
II.1. Dismantle screws (11, 12) and remove disk type non-return valve (1) from piping system.
II.2. Disassemble the clamp (2).
II.3. Remove the housing lid (3).
Information/notice
 Be aware of the spring tensioning pressure.
II.4. Remove spring guide (4) and dismount O-rings (5, 6).
II.5. Remove pressure springs (7).
II.6. Remove valve disk (8).
II.7. Dismount O-ring (9).
Valve assembly
II.8. Prior to assembly, clean and grease the shafts and sliding surfaces.
Sealing ma-
terials
Lubricant type
EPDM PARALIQ GTE 703 (P)
apply a thin layer at the perimeter with a
brush
FKM
PARALIQ GTE 703 (P)
apply a thin layer at the perimeter with a
brush
Information/notice
 If a different grease is used
 Corrosion of the sealing elements.
 Do not use mineral greases and animal fats.
 Do not use any petroleum-based fats.