Installation Guide
English – June 2009
Type 161EB
Introduction
Outlet Pressure Ranges
This installation guide provides instructions for
installation, startup, and adjustment. For further
information refer to:
Type EZR Instruction Manual, form 5468,
D102600X012 or www.FISHERregulators.com.
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 CATEGORIES FLUID TYPE
DN 8 (NPS 1/4) SEP 1
Specications
Available Constructions
Type 161EB: High accuracy pilot with an outlet
pressure range from 0,34 to 24,2 bar (5 to
350 psig). Pilot bleeds (exhausts) downstream
through the sense (control) line.
Type 161EBM: The monitor version of the
Type 161EB pilot. The pilot bleed (exhaust)
is isolated from the sense (control) line. This
pilot is used in monitoring systems requiring an
isolated pilot bleed (exhaust).
Type 161EBH: The high-pressure version of the
Type 161EB pilot with an outlet pressure range
from 17,2 to 48,3 bar (250 to 700 psig).
Type 161EBHM: The high-pressure version of the
Type 161EBM pilot with an outlet pressure range
from 17,2 to 48,3 bar (250 to 700 psig).
Body Size and End Connection Style
NPS 1/4, NPT
Maximum Inlet Pressure
103 bar (1500 psig)
Maximum Outlet Pressure
52 bar (750 psig)
Temperature Capabilities
Nitrile (NBR)/Neoprene: -40° to 82°C
(-40° to 180°F)
Fluorocarbon (FKM): -18° to 149°C
(0° to 300°F) hot water limited to 82°C (180°F)
1. The pressure/temperature limits in this installation guide and any applicable standard
or code limitation should not be exceeded.
2. The maximum operating pressure for uoroelastomer diaphragms is limited to 31 bar (450 psig).
(1)
(1)
(1)
Proof Test Pressure
Installation
(1)
Types 161EB and 161EBM: 0,34 to 1,0 bar
(5 to 15 psig), 0,69 to 2,8 bar (10 to 40 psig), 2,1
to 5,2 bar (30 to 75 psig), 4,8 to 9,7 bar (70 to
140 psig), 9,0 to 13,8 bar (130 to 200 psig), 8,3
to 21 bar (120 to 300 psig), and 13,8 to 24,2 bar
(200 to 350 psig)
Types 161EBH and 161EBHM: 17,2 to 31 bar
(250 to 450 psig), and 27,6 to 48,3 bar (400 to
700 psig)
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
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. 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.
To avoid such injury or damage, provide
pressurerelieving or pressure-limiting
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.
D103054XUS2
www.emersonprocess.com/regulators
2
Type 161EB
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 male 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 externalsources 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 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.
Taking Out of Service (Shutdown)
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
Parts List
Key Description
1 Body Assembly
2 Spring Case
3 Body Plug
4 Valve Plug
6 Plug Spring
7 Diaphragm Assembly
8 Control Spring Seat
9 Control Spring
10 Diaphragm Limiter
11 Adjusting Screw
12 Locknut
13 Machine Screw
14 Pipe Plug
15 Body Plug O-Ring
16 Closing Cap
17 Closing Cap Gasket
18 Type Y602-12 Vent Assembly
19 Stem Guide Seal Assembly
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