Endress+Hauser Flowfit CYA27, Руководство по эксплуатации

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Flowfit CYA27 Installation
Hauser 19
5.3.3 Open outlet
With this type of installation, the assembly is located in a branch pipe that branches off a
main line and terminates in an open outlet→  8,  19. Ideally, the open outlet is
unpressurized or without counterpressure.
The pressure p must not exceed the permitted operating pressure of the assembly of
4 bar (58 psi) relative.
If the sensor is installed, the sensor's pressure specifications must also be observed.
If the medium pressure is above 4 bar (58 psi) relative, a pressure-reducing valve is
required.
1. Mount the assembly horizontally→  12.
2. Installing in the bypass is preferable to installing directly in the process line. The
bypass line can be shut off without interrupting the process (one upstream and one
downstream shut-off valve required). This enables sensor cleaning, for example,
without affecting the process.
3. Install a dirt trap (screen) with a mesh size of 500 µm upstream from the assembly. If
a pressure-reducing valve is used, it usually includes a dirt trap.
4. Set the flow value upstream from the assembly, e.g. via an upstream flow regulator.
The threaded adapters or hose adapters, which can be ordered, are sealed on the
assembly with an FKM O-ring and do not require additional sealing between the
assembly and adapter.
Flowfit CYA27
1
2 3 4 5 6
7
8
9
A0043506
 8 Connection example with open outlet
1 Main inlet line
2 Manual valve (not included in scope of delivery)
3 Check valve (optional, not included in scope of delivery)
4 Pressure-reducing valve (optional, not included in scope of delivery)
5 Filter trap (optional, not included in scope of delivery)
6 CYA27 assembly
7 Manual valve (optional in the case of an upward-sloping output line, not included in scope of delivery)
8 Outlet
9 Main output line
The use of a check valve in the supply line of the assembly prevents the unintentional
backflow of media from the assembly into the process, e.g. during maintenance work.