English - May 2018
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 Office or view
a copy at www.fisher.com. For further information refer
to: 299H Series Instruction Manual, D102684X012.
Instructions and parts list for the 67C Series
Instrument Supply Regulators are found in Instruction
Manual D102601X012. Instructions and parts list
for the P590 Series Filters are found in Instruction
Manual D101555X012. Instructions and parts list for
the Type VSX8 slam-shut are found in Instruction
This product may be used as a safety accessory with
pressure equipment in the following Pressure Equipment
Directive categories. It may also be used outside of the
Pressure Equipment Directive using sound engineering
practice (SEP) per table below. For information on the
current PED revision see Bulletin: D103053X012.
DN 50 / NPS 2
type 299H: Pilot-operated pressure reducing
regulator with a pilot integrally mounted to the
type 299Hr: A Type 299H with a token internal
relief valve to relieve minor overpressure caused
by thermal expansion
type 299HV: Same as the Type 299H
with a Type VSX8 slam-shut valve which
provides overpressure or overpressure and
type 299HVr: Same as the Type 299HV with an
internal token relief valve.
Body size and End Connection styles
See Table 1
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 orifice size is not available for Types 299HV and 299HVR.
4. Product has passed Emerson testing for lockup, relief start-to-discharge and reseal down to -40°.
Maximum Operating Inlet Pressure by Orifice Size
6.4 x 9.5 mm / 1/4 x 3/8 in. ..........12.1 bar / 175 psig
9.5 mm / 3/8 in. ..........................12.1 bar / 175 psig
13 mm / 1/2 in. ..........................12.1 bar / 175 psig
19 mm / 3/4 in. ..........................10.3 bar / 150 psig
22 mm / 7/8 in.
..........................8.6 bar / 125 psig
25 mm / 1 in.
.............................6.9 bar / 100 psig
30 mm / 1-3/16 in.
Maximum Casing and Emergency outlet Pressure
4.5 bar / 66 psig
Proof test Pressure
All Pressure Retaining Components have been
proof tested per Directive.
outlet (Control) Pressure ranges
See Table 2
Minimum Differential Pressure For Full Stroke
0.10 bar d / 1.5 psid
Maximum set Pressure for type 299HV
1.1 bar / 16 psig
Maximum set Pressure for type VsX8
See Table 2
Minimum and Maximum trip Pressure ranges
See Type VSX8 slam-shut Instruction
-29 to 66°C / -20 to 150°F
only qualified personnel shall 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. (Emerson) instructions.
If the regulator vents fluid 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.
......................5.5 bar / 80 psig