Emerson 299H Installation Guide
D102684XUS2
Installation Guide
English – September 2012
299H Series
!
Introduction
This Installation Guide provides instructions for
installation, startup, and adjustment of 299H Series
regulators. To receive a copy of the Instruction
Manual, contact your local Sales Ofce or view
a copy at www.sherregulators.com. For further
information refer to: 299H Series Instruction
Manual, form 5497, D102684X012.
P.E.D. Categories
This product may be used as a safety accessory
with pressure equipment in the following Pressure
Equipment Directive 97/23/EC categories. It may
also be used outside of the Pressure Equipment
Directive using sound engineering practice (SEP)
per table below.
product size category fluid type
DN 40, 50 / NPS 1-1/2, 2 I 1
Specications
Available Congurations
Type 299H: Pilot-operated pressure reducing
regulator with a pilot integrally mounted to the
actuator casing
Type 299HR: A Type 299H with a token internal
relief valve to relieve minor overpressure caused
by thermal expansion
Type 299HS: Same as the Type 299H
with a Type VSX-2 slam-shut valve which
provides overpressure or overpressure and
underpressure protection
Type 299HSR: Same as the Type 299HS with
an internal token relief valve
Body Size and End Connection Styles
See Table 1
Maximum Operating Inlet Pressure
by Orice Size
6.4 x 9.5 mm / 1/4 x 3/8 inch – 12.1 bar / 175 psig
9.5 mm / 3/8 inch – 12.1 bar / 175 psig
13 mm / 1/2 inch – 12.1 bar / 175 psig
19 mm / 3/4 inch – 10.3 bar / 150 psig
22 mm / 7/8 inch
25 mm / 1 inch
30 mm / 1-3/16 inch
1. The pressure/temperature limits in this Installation Guide and any applicable
standard or code limitation should not be exceeded.
2. For optimum performance, a pilot supply regulator may be installed in the pilot
supply tubing between the main valve and pilot.
3. This orice size is not available for Types 299HS and 299HSR.
(3)
– 8.6 bar / 125 psig
(3)
– 6.9 bar / 100 psig
(3)
– 5.5 bar / 80 psig
(1)
Maximum Casing and Emergency
Outlet Pressure
(1)
4.5 bar / 66 psig
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Outlet (Control) Pressure Ranges
(1)(2)
See Table 2
Minimum Differential Pressure For Full Stroke
0.10 bar / 1.5 psi
Maximum Set Pressure for Type 299HS
(1)
1.1 bar / 16 psig
Maximum Set Pressure for Type VSX-2
Slam-Shut Device
(1)
1.6 bar / 23 psig
Minimum and Maximum Trip Pressure Ranges
(1)
See Table 3
Temperature Capabilities
-29 to 66°C / -20 to 150°F
(1)
Installation
Warning
Only qualied personnel should
install or service a regulator.
Regulators should be installed,
operated, and maintained in
accordance with international and
applicable codes and regulations,
and Emerson Process Management
Regulator Technologies Inc. (Regulator
Technologies) instructions.
If the regulator vents uid or a leak
develops in the system, it indicates that
service is required. Failure to take the
regulator out of service immediately
may create a hazardous condition.
Personal injury, equipment damage,
or leakage due to escaping uid
or bursting of pressure-containing
parts may result if this regulator is
overpressured or is installed where
service conditions could exceed the
limits given in the Specications
section, or where conditions exceed
any ratings of the adjacent piping or
piping connections.
www.sherregulators.com
299H Series
!
To avoid such injury or damage,
provide pressure-relieving or pressurelimiting devices (as required by
the appropriate code, regulation,
or standard) to prevent service
conditions from exceeding limits.
Additionally, physical damage to the
regulator could result in personal
injury and property damage due to
escaping uid. To avoid such injury
and damage, install the regulator in a
safe location.
Clean out all pipelines before installation of the
regulator and check to be sure the regulator has
not been damaged or has collected foreign material
during shipping. For NPT bodies, apply pipe
compound to the external pipe threads. For anged
bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator
in any position desired, unless otherwise specied,
but be sure ow through the body is in the direction
indicated by the arrow on the body.
Note
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all times.
For outdoor installations, the regulator
should be located away from vehicular
trafc and positioned so that water, ice,
and other foreign materials cannot enter
the spring case through the vent. Avoid
placing the regulator beneath eaves or
downspouts, and be sure it is above the
probable snow level.
Overpressure Protection
The recommended pressure limitations are
stamped on the regulator nameplate. Some type
of overpressure protection is needed if the actual
inlet pressure exceeds the maximum operating
outlet pressure rating. Overpressure protection
should also be provided if the regulator inlet
pressure is greater than the safe working pressure
of the downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of
damage from external sources or debris in the
line. The regulator should be inspected for
damage after any overpressure condition.
Startup
The regulator is factory set at approximately the
midpoint of the spring range or at the pressure
requested, so an initial adjustment may be required
to give the desired results. With proper installation
completed and relief valves properly adjusted, slowly
open the upstream and downstream shutoff valves.
Adjustment
To change the outlet pressure, remove the closing
cap or loosen the locknut and turn the adjusting
screw clockwise to increase outlet pressure or
counterclockwise to decrease pressure. Monitor
the outlet pressure with a test gauge during the
adjustment. Replace the closing cap or tighten the
locknut to maintain the desired setting.
Type VSX-2 Installation
Warning
If the Type VSX-2 is exposed to an
overpressure condition, it should be
inspected for any damage that may
have occurred. Operation below these
limits does not preclude the possibility
of damage from external sources or
from debris in the pipeline.
The Type VSX-2 may be shipped separately from
the regulator. To install the unit on a regulator, place
the new O-rings (keys 2 and 3, Figure 1) on the
Type VSX-2 and slide the module into the regulator
body. Secure the Type VSX-2 to the regulator body
with the four set screws (key 4). The unit may be
oriented in any direction with respect to the sensor
line connection.
2
Type VSX-2 Trip Adjustment
Note
An adjustment tool is included with
the Type VSX-2. Use only this tool
to make adjustments to the unit. To
make adjustments, the overpressure
trip spring is found under the
outer adjusting screw and the
underpressure trip spring is found
under the inner adjusting screw.
To adjust the Overpressure Trip Spring:
1. Adjust the overpressure trip setting to its
maximum compression.
2. If present, adjust the underpressure spring to its
minimum compression.
3. Backpressure the unit with the desired
overpressure trip pressure.
4. Reduce the overpressure trip spring
compression until the Type VSX-2 trips.
299H Series
Table 1. Body Sizes and End Connection Styles
Body size Body Material and end connection style
dn Inch
(For Types 299H and 299HR only)
32 1-1/4 NPT - - - - - - - -
40 1-1/2 NPT NPT NPT
50 2 NPT and CL125 FF
1. This ange is available with a face-to-face dimension of 191 mm / 7.5 inches or 254 mm / 10 inches.
outlet (control) pressure range type
mbar Inch w.c. 299H 299HR, 299HS, and 299HSR
(1)
9 to 15
(1)
12 to 22
17 to 50
40 to 99
(1)
(1)
69 mbar to 0.22 bar
0.19 to 0.41 bar
0.35 to 1.1 bar
0.97 to 2.4 bar
2.1 to 4.1 bar
1. Use a pilot supply regulator if actual inlet pressure varies more than ±1.4 bar / 20 psi and the published accuracy is required.
Cast Iron
(1)
anged
NPT, CL125 FF, CL250 RF, and
Table 2. Outlet Pressure Ranges
(1)
3.5 to 6
(1)
5 to 9
(1)
7 to 20
(1)
16 to 40
1 to 3.25 psig
2.75 to 6 psig
5 to 16 psig
14 to 35 psig
30 to 60 psig
Ductile Iron
PN 10/16 anged
X
X
X
X
X
X
X
X
X
(For Types 299H and 299HR only)
NPT, CL150 RF, and PN 16 anged
Steel
X
X
X
X
X
X
X
- - - -
- - - -
Table 3. Type VSX-2 High and Low Trip Pressure Ranges
setpoint
ranges
SLAM-SHUT TYPE
High Pressure Trip LP
Low Pressure Trip LP
Note: Other spring combinations are available, please contact your local Sales Ofce for additional information.
FOR USE WITH MAIN VALVE SPRING RANGE MINIMUM TO MA XIMUM TRI P PRESSURE
mbar Inch w.c. mbar Inch w.c.
9 to 15 3.5 to 6
12 to 22 5 to 9
9 to 15 3.5 to 6
17 to 50 7 to 20
17 to 50 7 to 20
40 to 99 16 to 40
40 to 99 16 to 40
0.19 to 0.41 bar 2.75 to 6 psig
0.19 to 0.41 bar 2.75 to 6 psig
0.35 to 1.1 bar 5 to 16 psig
0.35 to 1.1 bar 5 to 16 psig 800 to 1586 11.6 to 23 psig
12 to 22 5 to 9
17 to 50 7 to 20
17 to 50 7 to 20
40 to 99 16 to 40
69 mbar to 0.22 bar 1 to 3.25 psig
0.19 to 0.41 bar 2.75 to 6 psig
0.19 to 0.41 bar 2.75 to 6 psig
0.35 to 1.1 bar 5 to 16 psig
30 to 62 12 to 25
50 to 129 20 to 5212 to 22 5 to 9
97 to 269 1.4 to 3.9 psig
262 to 600 3.8 to 8.7 psig 69 mbar to 0.22 bar 1 to 3.25 psig
400 to 1103 5.8 to 16 psig
5 to 30 2 to 12
10 to 75 4 to 30
25 to 159 0.36 to 2.3 psig
103 to 745 1.5 to 10.8 psig
3
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