Emerson Enardo 2000 Series User manual

2000 and 2500 Series
D103817X012
Instruction Manual
May 2016
www.enardo.com
2000 and 2500 Series Emergency Pressure Relief Vents
(ATEX Approved)
Table of Contents
Introduction..................................................................1
Specifications .............................................................. 2
Product Identification and Marking .............................. 2
Principle of Operation.................................................. 4
Installation ...................................................................6
Maintenance................................................................7
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
re and/or chemical contamination
causing property damage and personal
injury or death.
Enardo emergency pressure relief
vent must be installed, operated
and maintained in accordance with
federal, state and local codes, rules
and regulations, and Emerson Process
Management Regulator Technologies
Tulsa, LLC (EmersonTM) instructions .
Failure to correct trouble could result in
a hazardous condition. Call a qualied
service person to service the unit.
Installation, operation and maintenance
procedures performed by unqualied
person may result in improper adjustment
and unsafe operation. Either condition
may result in equipment damage or
personal injury. Only a qualied person
shall install or service the emergency
pressure relief vent.
Introduction
Scope of the Manual
This Instruction Manual provides instructions
for installation and maintenance for the 2000 and
2500 Series emergency pressure relief vents (EPRVs).
Figure 2. 2500 Series Emergency Pressure Relief Vent
with Vacuum
Figure 3. 2000 Series with Smart Wireless Monitoring
Figure 1. 2000 Series Emergency Pressure Relief Vent
P1888
P1890

2000 and 2500 Series
2
Specications
The Specications section lists the specications for the 2000 and 2500 Series. Specication is stamped on the
nameplate attached to the emergency relief vent. Refer to Product Identication and Marking section for the
nameplate details.
Connection Sizes Available
See Table 1
Pressure Ranges(1)(2)
2000 Series:
2.0 to 32.0 oz./sq. in.
(0.5 oz./sq. in. increments)
3.5 to 55.0 in. w.c.
(1.0 in. w.c. increments)
8.6 to 138 mbar
(2.2 mbar increments)
2500 Series:
4.0. to 16.0 oz./sq. in.
(0.5 oz./sq. in. increments)
7.0 to 27.0 in. w.c.
(0.5 in. w.c. increments)
17.4 to 67.2 mbar
(2.2 mbar increments)
Vacuum Pressure Ranges(1) (2500 Series)
0.5, 0.75, 1 and 2 oz./sq. in.
Construction Materials
2000 Series
Base and Arm: Carbon Steel, 304 Stainless steel
and 316 Stainless steel
Disk and Seal Support: Aluminum,
304 Stainless steel and 316 Stainless steel
Seal: Buna-N, FEP Teon®and Viton®
2500 Series
Base, Arm and Hood: Carbon steel,
304 Stainless steel and 316 Stainless steel
Disk and Seal Support: Aluminum and
316 Stainless steel
Seal: FEP Teon®, Viton®and Buna-N
Vacuum Spring: 302 Stainless steel
Vacuum Pallet and Vacuum Seat: Polyphenylene
Sulde and 316 Stainless steel
1. The pressure limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
Figure 4. Product Identification and Marking
Teon®and Viton®are marks owned by E. I. du Pont de Nemours and Company.
SERIES MODEL
CONNECTION SIZE
ANSI API
2000 Series
Emergency Pressure Relief -
For Pressure Relief Only
2004 4 in. - - - -
2008 8 in. 8 in.
2012 12 in. - - - -
2016 16 in. - - - -
2018 18 in. - - - -
2020 20 in. 20 in.
2024 24 in. 24 in.
2500 Series
Emergency Pressure Relief Vent
with Vacuum -
For Pressure and Vacuum Relief
2516 16 in. - - - -
2520 20 in. 20 in.
2524 24 in. 24 in.
Table 1. Connection sizes and Model Number
HAZARDOUS LOCATION
OUTER HOUSING OF UNCOATED ALUMINUM
II 2 G c T6
OUTER HOUSING OF STAINLESS STEEL,
CARBON STEEL OR COATED ALUMINUM
II 1 G c T6
SMART WIRELESS ID MARKING
(2000 SERIES MODELS ONLY)
II 1 G c T5
Ex ia IIC T5 Ga

2000 and 2500 Series
3
Product Description
Emergency pressure relief vents are designed to
provide an emergency pressure relief opening for
storage tanks when exposed to overpressures that are
not handled by standard tank vents.
2000 Series emergency pressure relief vent (EPRV)
provides pressure relief only. 2500 Series emergency
pressure relief vent with vacuum (EPRV-V) provides
pressure and vacuum relief.
Properly-sized 2000 and 2500 Series meet the API
standard 2000 for emergency venting due to re
exposure. 2500 Series handles high capacity vacuum
ow for emergency pump-out of product. These
vents provide quick easy access for tank inspection
and maintenance.
Remote Monitoring Option
The Smart Wireless monitoring option is available with
the Enardo 2000 Series. It allows the detection of the
Open or Closed position of the emergency vent from a
remote site. Under normal conditions, the emergency
vent should be Closed. An Open indication can alert
personnel that there is a potential safety or emissions
issue that should be further investigated.
Product Identication and Marking
Hazardous Locations
Enardo Emergency Pressure Relief Vents are
available with outer housings of carbon steel, stainless
steel or aluminum as indicated in Figure 4.
The following information is stamped on the nameplate
attached to the relief valve: Model number, Flange size
and rating, Serial number, Tag number, Notied body
number, Category number, year, certicate number,
pressure setting and ow rate and vacuum setting and
ow rate.
Teon®and Viton®are marks owned by E. I. du Pont de Nemours and Company.
Figure 5. Emergency Pressure Relief Vent Model Number
2500 Series
2 5 — — — /—
Connection
Size
(16, 20 and
24 in.)
Base, Arm
and Hood
1 = Carbon Steel
2 = 304 Stainless
Steel
3 = 316 Stainless
Steel
4 = Exotic
Disk and
Seal Support
1 = Aluminum
2 = 316 Stainless
Steel
3 = Exotic
Vacuum Pallet
and Seat
1 = Polyphenylene
Sulde
2 = 316 Stainless
Steel
3 = Exotic
Gasket
Seal
T = Teon®
N = Buna-N
V = Viton®
X = Special
Pressure
Settings
n = in. w.c.
z = oz./sq. in.
4.0 to 16.0 oz./sq. in.
(0.5 oz./sq. in.
increments)
7.0 to 27.0 in. w.c.
(0.5 in. w.c.
increments)
17.4 to 67.2 mbar
(2.2 mbar
increments)
Vacuum
Settings
0.5,
0.75,
1.0 or
2.0 oz./sq.in.
Options
1 = Special
Coating
2 = Optional
Hardware
3 = Other
Series Bolt
Pattern
1 = ANSI
2 = API
2000 Series
2 0 — — — —
Connection
Size
(4, 8, 12, 16,
18, 20 and
24 in.)
Base and
Arm
2 = Carbon
Steel
3 = 304 Stainless
Steel
4 = 316 Stainless
Steel
5 = Exotic
Disk Cover
1 = Aluminum
3 = 304 Stainless
Steel
4 = 316 Stainelss
Steel
5 = Exotic
Gasket
T = Teon®
N = Buna-N
V = Viton®
X = Special
Pressure
Settings
n = in. w.c.
z = oz./sq. in.
2.0. to 32.0 oz./sq. in.
(0.5 oz./sq. in.
increments)
3.5 to 55.0 in. w.c.
(1.0 in. w.c.
increments)
8.6 to 138 mbar
(2.2 mbar increments)
Options
1 = Special
Coating
2 = Optional
Hardware
3 = Other
4 = Smart
Wireless
Monitoring
Series Bolt
Pattern
1 = ANSI
2 = API

2000 and 2500 Series
4
Figure 6. Pressure and Vacuum Flow
PRESSURE FLOW
VACUUM FLOW
Principle of Operation
Refer to Figure 6. The 2000 and 2500 Series maintain a
tight seal until system pressure or vacuum exceeds the
set pressure of the vent. To adjust the set pressure, a
series of weights may be stacked onto the lid assembly.
When overpressure occurs, the weighted lid assembly
lifts, breaking the seal between the seat and seal
portion of the lid assembly. This allows vapors to pass
through the vent orice and relieve pressure build up.
The vent reseals upon relief and remains sealed.
It is important to note that relieving vapors near the
set pressure in a continuous manner may cause the
lid assembly to utter or oscillate. This is a common
occurrence in products of this type in the industry.
Operating the vent with utter or oscillation over time
may cause premature vent damage or wear. Contact
your local Sales Ofce for additional assistance.

2000 and 2500 Series
5
2500 SERIES EMERGENCY RELIEF VENT WITH VACUUM (EPRV-V)
2000 SERIES EMERGENCY PRESSURE RELIEF VENT (EPRV)
Figure 7. 2000 and 2500 Series Assembly Drawing
Remote Monitoring Option
The Smart Wireless option for the 2000 Series consists
of the EPRV, a proximity sensor, and a wireless
transmitter. The built-in proximity sensor detects the
open or closed position using a magnetic target located
on the arm assembly on the hinged end. A signal is sent
to the wireless transmitter, which can then be sent to
a control room via any WirelessHART®Gateway. This
wireless sensor networking technology is based on
the Highly Addressable Remote Transducer (HART®)
protocol. It is the most widely used wireless networking
standard used today and, for this reason, the
2000 Series has been designed to integrate with it. As
long as the wireless gateway is WirelessHART®, it will
receive the Open or Closed signal from the device. The
WirelessHART®gateway will then send the information
to a control room which can make use of any number of
software integration packages.
HART®and WirelessHART®are marks owned by FieldComm Group.
REINFORCEMENT DISC
ARM
CENTER BOLT
PRESSURE SEAL
VENT COVER
BASE
ASSEMBLY
SEAL
SUPPORT
HINGE EAR
GUIDE SLEEVE
VENT ROD
ARM
VACUUM SPRING
HINGE
BASE
ASSEMBLY
VACUUM
SEAL VACUUM
PALLET
VACUUM
SEAT
SEAL
SUPPORT
PRESSURE SEAL
VENT COVER
WEATHER
HOOD

2000 and 2500 Series
6
Figure 8. Enardo 2000 Smart Wireless Monitoring Option
Installation
!
WARNING
The EPRV Series is shipped with its lid
held partially open. The lid assembly has
attached weights and is heavy. Use caution
when removing the shipping blocks and
metal bands to avoid injury to ngers
and hands.
Before installing the relief vent, remove the unit from
its crate and discard any protective coverings. Follow
the instruction below for the installation of the 2000 and
2500 Series.
1. Install the 2000 and 2500 Series on the ange
bolt patterns that match with bolt pattern of the
vent. The attachment ange base should be at
level surface.
2. Carefully remove the 2000 and 2500 Series from
its crate. The seal portion of the vents is delicate,
protect this surface while handling the unit.
3. Place the appropriate gasket on the level attachment
ange and center the vent into place.
4. Insert the appropriate number of bolts and make sure
the vent is fastened securely. Installed bolts should
be clear of the lid assembly when it is in the full
open position.
5. Inspect the installed unit from items that would keep
it from working properly. The sealing area should be
free of any debris that would cause leakage. The arm
of the vent should be able to fully open.
CONDUIT
BRACKET
TRANSMITTER
SENSOR
MAGNETIC TARGET WIRELESS EAR

2000 and 2500 Series
7
3. Replace the spring chamber and hood. Fasten
them securely.
Figure 9. 2500 Series with an Elevated Pressure Setting
1. Loosen fasteners on top of the vent and remove
the hood and the spring chamber.
Maintenance
!
WARNING
Always make sure that the tank is at
atmospheric pressure before opening.
pressure build-up inside the tank can
cause a spray to be emitted from the
vent if opened under pressure.
Follow the instruction below for the preventive
maintenance of the 2000 and 2500 Series.
2. Inspect and clear away any debris or buildup
that may cause the vent to become lodged or
impede air ow through the unit. Do not adjust
the height of the installed spring. Clean the
internal components with a suitable solvent and
non-abrasive cloth.
4. Clear away any debris or buildup on the unit surface
that may cause the vent to become lodged, impede
air ow or add weight to the lid assembly (added
weight will adjust the pressure setting of the vent).

2000 and 2500 Series
©Emerson Process Management Regulator Technologies Tulsa, LLC, 2015, 2016, Rev. D; All Rights Reserved
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Enardo is a mark owned by Regulator Technologies Tulsa, LLC,
a business of Emerson Process Management.
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 specications of such
products at any time without notice.
Emerson Process Management Regulator Technologies Tulsa, LLC does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use
and maintenance of any Emerson Process Management Regulator Technologies Tulsa, LLC product remains solely with the purchaser.
Emerson Process Management
Regulator Technologies Tulsa, LLC
9932 East 58th Street
Tulsa, OK 74146-6411
Tel: [phone]
Fax: [phone]
For further information visit www.enardo.com
Remote Monitoring Maintenance
1. Maintain Smart Wireless Model 2000 EPRV’s in
the same way as all standard EPRV’s.
2. Take certain precautions when cleaning the
transmitter. The surface resistivity of the antenna
assembly is greater than 1 GΩ. To avoid
electrostatic charge build-up, it must not be rubbed
or cleaned with solvents or dry cloth.
Pressure and Vacuum Setting
Information
Both the 2000 and 2500 Series can reach various
pressure settings in units of ounces or inches of water
column. The minimum pressure setting that each vent
can achieve depends on the individual vent size and
material. Minimum settings are reached when the
unit is installed by itself. However, when weights are
added to the arm of the unit, elevated pressures can
be reached. These elevated settings are preset at the
factory and should never be eld adjusted.
Vacuum settings for the 2500 Series are set with a
spring. For each setting that Enardo offers, there is a
spring that is specically designed to do the job. The
standard settings available are 0.5, 0.75, 1 and 2 oz.
Once again, these settings are preset at the factory
and should never be eld adjusted.