Maintenance And Service Work; Modifications Of The Disk Type Non-Return Valve - Pentair SUDMO P740 Operating Instructions Manual

Pentair Südmo GmbH shall not be liable for damage arising from the improper use of the
disk type non-return valve.

The exact specification of the disk type non-return valve, such as

order number of the valve

seal sets

operating pressure

control air pressure

etc.
can be found on the label attached to the valve body.
2.3.

Maintenance and service work


Any maintenance and service work on the disk type non-return valves must only be carried out by trained and
qualified personnel.

Training or instruction according to the currents standards of the safety regulations.

For systems with explosion protection:

Get information on possible risks that could be caused by residues of the operating material and take appropriate
measures if necessary (safety gloves, safety goggles etc.), before carrying out maintenance and service work on
the disk type non-return valve.

Prior to carrying out any maintenance and service work, make sure that

the work is only carried out in a depressurized state and with the media supply shut off.

Before starting with a disassembly, the disk type non-return valve must be rinsed with cold water for a sufficient
period in order to ensure that no cleaning products or hot water can be found. (Afterwards the disk type non-
return valve must be emptied).

the disk type non-return valve and all piping elements leading to the valve have been drained, cleaned or
flushed.

the fittings have cooled down.

the commissioning of the system by a third party is ruled out.

The pressure build-up which may form in pipelines is counteracted.

disassembly - assembly of the disk type non-return valve is carried out according to the assembly instructions
(see chapter "Disassembly - Assembly" of the relevant assembly instructions).

the disk type non-return valve is removed from the pipeline section, if possible.

Avoid any working method that impairs the safety and function of the disk type non-return valve.
2.4.

Modifications of the disk type non-return valve




Type: P740, P741, P745, P750 and P760
DN 010 – 150, OD 0.50" – 6.00", ISO 008 – 125
Information/notice
Training or instruction or authorization to carry out work on the
systems subject to explosion hazards (observe ATEX regulations).
Operate the disk type non-return valve in accordance with regulations and having due
regard for safety and an awareness for hazards.
Only operate the disk type non-return valve in a perfect technical condition.
Modifications of the disk type non-return valve are strictly forbidden.
Operating Instructions
Disk type non-return valves
RV Solid series
DANGER
Copy of the original operating instructions
en
5 / 34
BAA RV Solid