1. General Information:
1.0 Introduction
The following instructions are designed to assist maintenance
personnel in performing most of the maintenance required on
the series 173 regulators and if followed carefully will reduce
maintenance time.
Masoneilan has highly skilled Service Engineers available for
start-up, maintenance and repair of our regulators and compo-
nent parts. In addition, regularly scheduled training programs
are conducted to train customer service and instrumentation
personnel in the operation, maintenance and application of our
control valves, regulators and instrumentation. Arrangements
for these services can be made through your Masoneilan
Representative or District Office. When performing mainte-
nance use only genuine Masoneilan replacement parts. Parts
are obtainable through your local Masoneilan Representative
or District Office. When ordering parts always include
MODEL
and
SERIAL NUMBER
of the unit being repaired.
2. Transport, Storage and Handling
Transport
Depending on their size, regulators can be transported loose,
packed in cardboard boxes or in wooden crates.
All the regulator ends are fitted with covers to prevent dirt from
entering. Units can be placed on pallets if required. Follow all
and any instructions noted on the packaging.
Operators moving loads must take all necessary precautions
to prevent accidents.
Storage
Regulators must be kept in a dry place to protect them from
atmospheric conditions. They may only be removed from their
crates or packing immediately prior to installation.
The end protections and covers must be kept on until installa-
tion. Regulators, whether packed or not, must not be subject
to impact.
Regulators, whether packed or not, must always be kept
upright, that is, never lying on one side, in order to prevent
distortion and damage to internal parts.
Handling
When unpacking the regulators and removing the end protec-
tors immediately prior to installation, take great care to make
sure that foreign material does not enter the regulator inlet
and outlet ports while it is being connected.
When handling the regulator, make sure the work area is
kept clear in order to prevent injury to people and damage to
property.
2
Instructions
EY0173 – 10/08
173 Series
Self-Operating Pressure Regulators
1st
1
2nd
7
3rd
3
1st
X
2nd
X
3rd
X
4th
X
Option
X
Regulator Series
Action
1 Relieving
Metal Seat
2 Relieving
Soft Seat
Action
50 Differential
Pressure
Diaphragm
1 Metal
Diaphragm
2 Elastomeric
Diaphragm
Trim Size
01
05
08
10
12
16
20
35
45
DV-216-173 series Inst-fnl.indd 2
11/20/08 9:29:50 AM
