Emerson 289A User manual

Introduction
This installation guide provides instructions for installation,
startup and adjustment. 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: 289 Series
Instruction Manual, D100280X012.
PED Category
This product may be used as a pressure 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.
TYPE SIZE CATEGORY
DN NPS
289A - - - - 1/4 SEP
289H 25 1 SEP
50 2 I
289HH 25 1 SEP
289L 20 and 25 3/4 and 1 SEP
289P 25 1 SEP
289U - - - - 1/4 SEP
Specifications
Available Configurations
See Table 1
Body Sizes and Inlet Connections
Type 289L: 3/4 or 1 NPT
Types 289A and 289U: 1/4 NPT
Type 289H: 1 or 2 NPT
Type 289HH: 1 NPT
Maximum Allowable Relief (Inlet) Pressure(1) and
Maximum Relief Set Pressure
See Table 1
Proof Test Pressure
All Pressure Retaining Components have been proof
tested per Directive.
Pressure Setting Adjustment
Adjusting screw
Material Temperature Capabilities(1)
Nitrile (NBR) and Neoprene (CR) Elastomers:
-29 to 66°C / -20 to 150°F
Fluorocarbon (FKM)(2):-7 to 149°C / 20 to 300°F;
available with Types 289H and 289HH only
Installation
!
WARNING
Only qualified personnel should install
or service a backpressure regulator.
Backpressure 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 using a backpressure regulator on a
hazardous or flammable fluid service,
personal injury and property damage could
occur due to fire or explosion of vented
fluid that may have accumulated. To prevent
such injury or damage, provide piping or
tubing to vent the fluid to a safe,
well-ventilated area or containment vessel.
Also, when venting a hazardous fluid,
the piping or tubing should be located
far enough away from any buildings or
windows so to not create a further hazard,
and the vent opening should be protected
against anything that could clog it.
Personal injury, equipment damage, or
leakage due to escaping fluid or bursting of
pressure-containing parts may result if this
backpressure 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
pressure-relieving 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
backpressure regulator could result in
personal injury and property damage due
to escaping fluid. To avoid such injury and
damage, install the backpressure regulator in
a safe location.
Clean out all pipelines before installation of the backpressure
regulator and check to be sure the backpressure regulator
has not been damaged or has collected foreign material
during shipping. For NPT bodies, apply pipe compound to
the external pipe threads. For flanged bodies, use suitable
line gaskets and approved piping and bolting practices.
Install the backpressure 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.
1. The pressure/temperature limits in this installation guide and any applicable standard
or code limitation should not be exceeded.
2. Bubble-tight shutoff cannot be attained at settings below 0.34 bar / 5 psig with
Fluorocarbon (FKM) O-ring seat.
289 Series
Installation Guide
D100280X014
English – March 2017

Note
It is important that the backpressure
regulator be installed so that the vent hole in
the spring case is unobstructed at all times.
For outdoor installations, the backpressure
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 backpressure regulator beneath
eaves or downspouts, and be sure it is above
the probable snow level.
For installation of Types 289H, 289HH and 289L
backpressure regulators, the vent in the spring case must
remain plugged or undrilled in order for the pitot tube to
function properly.
Overpressure
Maximum inlet pressures depend upon body materials
and temperatures. Refer to the nameplate for the
maximum inlet pressure of the valve. The valve should be
inspected for damage after any overpressure condition.
Fisher™ backpressure regulators are NOT ASME
safety relief valves.
Startup
The backpressure 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 (if applicable).
Adjustment
To change the outlet pressure, remove 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 closing cap or tighten the
locknut to maintain the desired setting.
Table 1. Maximum Allowable Relief (Inlet) Pressure
AVAILABLE
CONFIGURATION
BODY SIZE,
NPT
COLOR
CODE
SPRING RANGE
(RELIEF PRESSURE SETTINGS)
MAXIMUM ALLOWABLE RELIEF
(INLET) PRESSURE(1)
bar psig bar psig
Type 289A 1/4 Silver
Silver
0.21 to 0.90
0.76 to 1.5
3 to 13
11 to 22 3.1 45
Type 289H
1
Pink
Red
Silver
Green
0.07 to 0.31
0.28 to 1.0
0.69 to 1.4
1.0 to 3.5
1 to 4.5
4 to 15
10 to 20
15 to 50
6.9 100
2
Dark blue
Gray
Dark green
Red Stripe
17 to 45 mbar
0.03 to 0.16
0.12 to 0.48
0.28 to 0.69
7 to 18 in. w.c.
0.5 to 2.25
1.75 to 7
4 to 10
1.7 25
Type 289HH 1 Green 3.1 to 5.2 45 to 75 6.9 100
Type 289L 3/4 or 1 Silver
Red Stripe
25 to 45 mbar
30 to 99 mbar
10 to 18 in. w.c.
12 to 40 in. w.c 0.48 7
Type 289U 1/4 Silver
Silver
12 to 62 mbar
50 to 207 mbar
5 to 25 in. w.c.
20 in. w.c. to 3 psig 0.69 10
1. This value indicates the relief pressure setting plus pressure build-up.
Taking Out of Service (Shutdown)
To avoid personal injury resulting from
sudden release of pressure, isolate the
backpressure regulator from all pressure
before attempting disassembly.
For the 2 NPT Type 289H backpressure regulators,
when changing from one spring range to another, it is
recommended that a new spring case be used so that the
travel stop drive screw will be positioned correctly for the
corresponding spring range.
Parts List
Key Description
1 Valve Body
2 Spring Case/Spring Case Assembly
3 Diaphragm Head
4 Spring Seat
5* Diaphragm/Diaphragm Assembly
6 Adjusting Screw
7 Spring
8 Machine Screw, Plated steel
9 Screen, Stainless steel
10* Orifice
11 Hex Nut
13 Snap Ring
14 Closing Cap
15* Gasket, Neoprene (CR)
17 Lower Spring Seat, Zinc-plated steel
18 Pitot Tube
19* Gasket, Composition
20* O-ring
21 O-ring Holder, Aluminum
22 O-ring Washer
23 Spacer
24 Hex Nut, Plated steel
26 Lower Diaphragm Head, Zinc-plated steel
27 Washer, Aluminum
28 Pipe Plug, Types 289H and 289HH, Carbon steel
29 Machine Screw, Carbon-plated steel (not shown)
30* O-ring, Types 289H and 289HH
31 Stem Guide Assembly
32 Lifting Lever (not shown), Steel
34* Diaphragm Protector (not shown),
Polytetrafluoroethylene (PTFE) Types 289A
38* Gasket, Type 289H, 2 NPT body, Neoprene (CR)
289 Series
2

Figure 1. Type 289A Relief Valve Figure 2. Type 289U Relief Valve
18A2816-A107444-A
Figure 4. Types 289HH and 1 NPT 289H Relief Valves
AF8260-F
Figure 3. Type 289L Relief Valve
BL4063-E
1. Lubricants and sealant must be selected such that they meet the
temperature requirements.
APPLY LUBRICANTS (L) / SEALANT (S)(1):
L1 = ANTI-SEIZE COMPOUND
S = THREAD SEALANT
APPLY LUBRICANTS (L) / SEALANT (S)(1):
L1 = ANTI-SEIZE COMPOUND
S = THREAD SEALANT
1. Lubricants and sealant must be selected such that they meet the
temperature requirements.
APPLY SEALANT (S)(1):
S = THREAD SEALANT
1. Sealant must be selected such that it meets the temperature requirements.
APPLY LUBRICANTS (L) / SEALANT (S)(1):
L1 = ANTI-SEIZE COMPOUND
L2 = PTFE GREASE
S = THREAD SEALANT
1. Lubricants and sealant must be selected such that they meet the
temperature requirements.
7
2
9
5
1 10
4
3
8
S
6
11
17
31
30
15
18
13
22
20
21
23
24
16
28
27
19
2
7
9
8
5
1
4
3
S
L2
L1
17
10
13
16
15
2
19
8
5
L1
S
14
4
10
159
2
11
6
S
8
3
7
L1
289 Series
3

BE7030-J
Figure 5. 2 NPT Type 289H Relief Valve
APPLY LUBRICANTS (L) / SEALANT (S) / ADHESIVE (A)(1):
L1 = ANTI-SEIZE COMPOUND
L2 = PTFE GREASE
S = THREAD SEALANT
A = ADHESIVE
1. Lubricants, sealant and adhesive must be selected such that they meet the temperature requirements.
8
1
9
2
3
5
6
7
14
17
27
11
31
19
22
10
38
13
15
29
28
26
23
20
18
S
L2
L1
L1
A
S
289 Series
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Emerson Automation Solutions
For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.
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D100280X014 © 2002, 2019 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 04/19.
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