Installation Guide
English – May 2002
Type 161EB
Introduction
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.
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Specifications
Available Constructions
Type 161EB:
pressure range from 0,34 to 24,2 bar (5 to 350 psig).
Pilot bleeds (exhausts) downstream through the
sense (control) line.
Type 161EBM:
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:
161EB pilot with an outlet pressure range from 17,2 to
48,3 bar (250 to 700 psig).
Type 161EBHM:
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
DN 6 (1/4-inch) NPT
Maximum Inlet Pressure
103 bar (1500 psig)
Maximum Outlet Pressure
52 bar (750 psig)
Outlet Pressure Ranges
Types 161EB and 161EBM:
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:
450 psig), and 27,6 to 48,3 bar (400 to 700 psig)
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Temperature Capabilities
Nitrile/Neoprene:
Fluoroelastomer:
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 fluoroelastomer diaphragms is limited to
31 bar (450 psig)
High accuracy pilot with an outlet
The monitor version of the Type 161EB
The high-pressure version of the Type
The high-pressure version of the
(1)
(1)
(1)
0,34 to 1,0 bar (5 to 15
17,2 to 31 bar (250 to
(1)
-40 to 82°C (-40 to 180°F)
-18 to 149°C (0 to 300°F) hot water
Installation
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 Fisher
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.
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 fluid. 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 male pipe threads. For
flanged bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator in any
position desired, unless otherwise specified, but be sure
flow 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 traffic 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.
D103054XENG
www.FISHERregulators.com
Type 161EB
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 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)
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
SENSE
(CONTROL)
PORT
SENSE
(EXHAUST)
30B4395-E
32B0707-B
TYPE 161EB PILOT
TYPE 161EBH PILOT
31B5012-A
32B0708-B
TYPE 161EBM PILOT
TYPE 161EBHM PILOT
PORT
SENSE
(CONTROL)
PORT
SENSE
(EXHAUST)
PORT
Figure 1. 161EB Series Pilots
©Fis her C ontro ls Inte rnati onal, I nc., 2002; All R ights Rese rved
Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark of Emerson Electric Co.
All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
For information, contact Fisher Controls, International:
Within USA (800) 588-5853 – Outside USA (972) 542-0132
France – (33) 23-733-4700
Singapore – (65) 770-8320
Mexico – (52) 57-28-0888
Printed in U.S.A.
www.FISHERregulators.com
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