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VSX4 and VSX8 Series
REGULATOR SETPOINT,
mbar / psig
P
< 35 / 0.51
d
35 / 0.51 < = P
< 60 / 0.87
d
60 / 0.87 < = P
< 160 / 2.32
d
160 / 2.32 < = P
< 180 / 2.61
d
180 / 2.61 < = P
< 300 / 4.35
d
300 / 4.35 < = P
d
The VSX4 Series assembly part number (without valve plug and controller springs): LP: GE35589X012, HP: GE35590X012
The VSX8 Series assembly part number (without valve plug and controller springs): LP: ERCA02667A0, HP: ERCA02668A0
1. Regulator without relief valve (or with relief valve set above controller setting).
2. When selecting OPSO set points, the outlet pressure rating of the regulator should be considered.
3. Regulator with relief valve (set below controller setting).
Installation
!
Personal injury or system damage may
result if this controller is installed, without
appropriate overpressure protection,
where service conditions could exceed the
limits given by the nameplates of either the
regulator or controller or exceed the limits
indicated in the regulator or controller
instruction manuals.
all vents should be kept open to permit
free flow of gas to the atmosphere. Protect
openings against entrance of rain, snow,
insects or any other foreign material that
may plug the vent or vent line. When
installing outdoors, point the spring case
vent of the regulator and of the controller
downward to allow condensate to drain.
This minimizes the possibility of freezing
and accumulation of water or other foreign
materials entering the vent and interfering
with proper operation.
Controller installations should
be adequately protected from
physical damage.
The equipment should not receive any
type of shock causing damage to the
casing and therefore causing leaks.
No modification should be made to the
structure of the equipment (drilling,
grinding and soldering).
Under enclosed conditions or indoors,
escaping gas may accumulate and be
an explosion hazard. In these cases, the
vent(s) should be piped away from the
regulator/controller to the outdoors.
Failure to install a downstream control
line could result in a hazardous condition.
Install downstream control line(s) to the
controller when construction uses external
pressure registration. The regulator and
6
Table 5. Controller Standard Factory Settings
UPSO / Minimum
P
x 0.5
d
P
x 0.5
d
P
x 0.6
d
P
x 0.7
d
P
x 0.7
d
P
x 0.7
d
WarNINg
CONTROLLER STANDARD SETTINGS
OPSO
/ Maximum
(1)(2)
P
x 2.0
d
P
x 1.7
d
P
x 1.5
d
P
x 1.4
d
P
x 1.4
d
P
x 1.3
d
controller will not control pressure or
shut off if a downstream control line is not
installed on those constructions where
external pressure sensing line is required.
If the controller is exposed to an
overpressure condition, it should be
inspected for any damage that may have
occurred. Controller operation within
ratings does not preclude the possibility
of damage from external sources or from
debris in the pipeline.
general Installation Instructions
The VSX4 and VSX8 Series can be
rotated 360° for easy installation
and maintenance.
• Install according to EN 12186 and EN 12279.
Before proceeding to installation:
• Ensure that the controller is compatible with the
gas being regulated.
• Check for damage that might have occurred
during shipment.
• Check for and remove any dirt or foreign material
that may have accumulated in the regulator or
controller body.
• Blow out any debris or dirt in the tubing and
the pipeline.
• Ensure that the external or internal sense orifice
is clean.
• Apply pipe compound to the external threads of the
pipeline before installing the controller.
• Verify that:
- Equipment limits of utilization (PS, TS)
correspond to the desired operating conditions.
- The inlet is protected by an appropriate device(s)
to avoid exceeding the allowable limits (PS, TS).
- The controller and its springs correspond
to the desired operating conditions of
associated regulator.
OPSO
/ Maximum
(3)
P
x 2.0 + 10 mbar / 0.145 psig
d
P
x 1.7 + 10 mbar / 0.145 psig
d
P
x 1.5 + 10 mbar / 0.145 psig
d
P
x 1.4 + 10 mbar / 0.145 psig
d
- - - -
Note
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