Installation - Honeywell TRZ2 Betriebsanleitung

Honeywell
Flow disturbances
Minor disturbances
- single manifolds
- twin manifolds
- diffusers
Major disturbances
- pressure regulators
for gas
- other restrictors
Table 7 | Inlet sections

3.6 Installation

 CAUTION!
It is essential that you comply with the local health and safety
regulations in force for installing flange connections.
CAUTION!

Fitters for flange connections in countries in which the Pressure
Equipment Directive applies must have an appropriate
qualification (e.g. under EN 1591-4).
 CAUTION!
We recommend fitting a cone strainer with a mesh size of 250 μm
to protect the meter. When installing the meter in a vertical
position, with the direction of flow from bottom to top, a strainer
must be fitted to both the meter inlet and outlet (to protect against
falling dirt).
Remove the cone strainer again after around 4 – 6 weeks since it
may be saturated after this time and therefore will inhibit the flow.
22
Typical inlet
sections
Pipe sections installed at a
distance of 2D upstream
of the meter inlet
73018696f © Elster GmbH | All rights reserved. Subject to modification
TRZ2
L ≥ 2D
No flow conditioner
L ≥ 2D
No flow conditioner
Q
L ≥ 5D
L ≥ 5D
Flow
conditioner
recommended