Strainers/Filters; Installation Kits - Hoffer Flow Controls MF SERIES User Manual

12 Installation
IMPORTANT
:
Upon initial start-up of the system a spool piece should be installed
in place of the flowmeter so that purging of the system can be
performed to remove all particle debris which could cause damage
to the meter internals. In applications where meter flushing is
required after meter service, care should be taken as to not over-
spin the meter, as severe meter damage may occur.
CAUTION
: Avoid over-spinning the meter. Over-spinning the meter may
result in damage to the meter internals and lead to meter
failure.
3.2

Strainers/Filters

The MF Series flowmeters are designed for use in a clean fluid
service. However, the service fluid may carry some particulate
material which would need to be removed before reaching the
flowmeter. Under these conditions a strainer/filter may be required
to reduce the potential hazard of fouling or damage that may be
caused by foreign matter.
METER SIZE
MF Series
¼" to ½"
5
/ " to 1¼"
8
1½" to 3"
If a strainer/filter is required in the system, it should be located
upstream of the flowmeter taking care that the proper minimum
distance is kept between the strainer and flowmeter.
3.3

Installation Kits

Installation kits for the Hoffer MF Series Flowmeter consist of two
lengths of appropriate tubing cut to a length appropriate for the
upstream and downstream straight pipe run with appropriate end
fittings.
HP-210
All flow lines should be purged prior to installing the
meter. To prevent possible damage to the meter, install the
meter ONLY in flow lines that are clean and free of debris.
MESH SIZE
100
100
70
40
PARTICLE SIZE
(Maximum)
.0055
.0055
.008
.015