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
5.6.
Welding
Connect the forming gas.
Tack at 3 – 4 tack welds.
Weld valve
Type of welding TIG manual or orbital (automatic welding).
5.7.
Welding filler
Material allocation
Material of parts to
be welded
Suitable welding filler
1.4430
1.4440
1.4519
1.4404
X
1.4435
X
X
X
5.8.
Weld seam finishing
5.8.1.
Interior
Depending on requirements, for example
untreated.
scotching (at accessible points).
5.8.2.
Exterior
Subsequent-treatment procedure
Pickling - ensure proper disposal of pickling paste
Brushing
Grinding
Polishing
5.9.
Cleaning of the valve
Clean thoroughly before assembly.
5.10.
Valve assembly
Assemble according to the assembly instructions (see chapter “Disassembly - Assembly”).