D102684XUS2
Installation Guide
English – September 2012
299H Series
www.fisherregulators.com
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 Office or view
a copy at www.fisherregulators.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
Specifications
Available Configurations
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
(1)
by Orifice 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
(3)
– 8.6 bar / 125 psig
25 mm / 1 inch
(3)
– 6.9 bar / 100 psig
30 mm / 1-3/16 inch
(3)
– 5.5 bar / 80 psig
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
(1)
-29 to 66°C / -20 to 150°F
Installation
Warning
!
Only qualified 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 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.
Personal injury, equipment damage,
or leakage due to escaping fluid
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 Specifications
section, or where conditions exceed
any ratings of the adjacent piping or
piping connections.
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 299HS and 299HSR.
