GF NeoFlow Betriebsanleitung Seite 19

Instruction manual
Installation
A
Letter Designation
A Shut-off valve inlet
S
Strainer
D
Flow meter
N
NeoFlow pressure reducing valve
H
Hydrant/branch
O
Shut-off valve, outlet side
F
PP steel flange
► Make sure that the inlet and outlet shut-off valves (A + O) and the hydrant (H) are closed.
► We recommend use of a PP steel flange with a suitable profile seal.
► On one side of the NeoFlow pressure reducing valve, a space of at least 1.5 times the valve length must be maintained for access
to the flange bolts. Ensuring that the bolts for the flange connection can be installed at least on one installation side.
► Take into account high temperature difference during installation – retighten flange connections.
► Installation of the flange connection according to the information in the GF planning fundamentals.
WARNING!
Danger of material damage due to excessive pressure!
If the NeoFlow pressure reducing valve (N) is put into operation without a hydrant (H), excessive outlet pressure P2 on the NeoFlow
pressure reducing valve (N) can lead to damage in the piping system.
► Recommendation: use a hydrant (H).
► When putting into operation without a hydrant (H): open the outlet shut-off valve (O) only slightly to be able to control the pres-
sure.
WARNING!
Leaking flange connection!
Danger of injury and/or damage to property due to leaking flange connections.
► Periodic check that no media escapes to the outside.
► If media is exiting at the flanged connectors, they have to be retightened.
► Include the flange and collar thickness when calculating the bolt lengths.
► Protect jointing faces and connection parts from damage and poisoning, especially from hard or sharp-edged particles.
S D
1.5 x L
L
F
F
N
H
NeoFlow pressure reducing valve
O
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