Emerson Enardo ES-800 Series User manual

!
ES-800 and ES-900 Series Vent Valves
Instruction Manual
D103855X012
April 2020
Table of Contents
Introduction..................................................................1
Specifications .............................................................. 2
Principle of Operation.................................................. 2
Model Identification...................................................... 2
Installation ...................................................................2
Maintenance................................................................5
Parts Ordering ............................................................. 6
Parts List......................................................................6
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™ vent valves 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 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 vent valves.
Introduction
Scope of the Manual
This Instruction Manual provides instructions for
installation, maintenance and parts ordering guide for
the ES-800 and ES-900 Series vent valves.
Product Description
ES-800 and ES-900 Series vent valves represent the
latest development in high-performance, tight-sealing tank
venting products, and complement Enardo’s industry-
leading ES-600 Series thief hatch product line. With a
leakage rate of no more than 1 SCFH at 90% of set point,
the ES-800 and ES-900 Series o󰀨ers unparalleled vent
valve performance.
Model ES-800-SO – is an In-line vent valve. It is
installed directly into the vent line exhaust. The
Model ES-800-SO has both pressure and vacuum
relief capability.
Figure 2. Typical ES-900 Series End-of-Line Vent Valve
Figure 1. Typical ES-800 Series In-Line Vent Valve
ES-800 and ES-900 Series
North America Only

ES 8 20 PSO
!
Model ES-800-PSO –is a pressure only vent valve
designed to relieve pressure only through the vent
line. It is designed the same as the Model ES-800-SO
pressure/vacuum except they omit the vacuum side of
the valve that eliminates the possibility of two way ow.
Model ES-900-SO –is an end-of-line vent valve. The
end-of-line vent valve is installed directly on the end of
the vent line exhaust. The Model ES-900-SO has both
pressure and vacuum relief capability.
Model ES-900-PSO –is an end-of-line vent valve. The
end-of-line vent valve is installed directly on the end
of the vent line exhaust. The Model ES-900-PSO only
has pressure relief capability.
Principle of Operation
ES-800 and ES-900 Series vent valves are designed
to prevent the escape of light ends of crude by
maintaining presssure in the storage tank.
The vent valve opens when the system pressure or
vacuum exceeds the set pressure of the valve. When
over pressure occurs, the pallet lifts, breaking the seal
between the seat and pallet, allowing vapors to pass
through the valve orice and relieving the pressure
or vacuum buildup. The valve closes once the tank
pressure goes below the set pressure.
Model Identication
Tagging Information
For ES-800 Series, the nameplate is located on the
unit’s lid and for ES-900 Series, the nameplate is
located on the unit’s hood. Actual layout of nameplate
may vary.
WARNING
Installation
Wear protective gloves and clothing
to prevent skin contact when handling
lead weights. Wear eye protection.
Avoid breathing dust/fumes/mist/vapors/
spray. Do not eat, drink or smoke while
using the product. Avoid release to the
environment. Wash hands with soap and
water after handling. Keep away from
excessive heat and open ames.
Specications
The Specications section on this page provides specications for the ES-800 and ES-900 Series vent valves.
Specications such as model number, connection size, date of manufacture, valve type, seal materials and
pressure/vacuum settings are stamped on the nameplate attached to the vent valve. Weights are keyed to the
pallet stem. Every weight is stamped with the setting (oz.), the valve size and the part number.
Available Construction
See Figure 3
Available Sizes
2 through 4 in. / 50 through 100 mm
Set Pressure/Vacuum(1)
See Table 1
Construction Materials
See Table 2
Approximate Weight
ES-800 Series Vent Valve
2 In. / 50 mm body: 12 lbs. / 5 kg
3 In. / 80 mm body: 17 lbs. / 8 kg
4 In. / 100 mm body: 23 lbs. / 10 kg
ES-900 Series Vent Valve
2 In. / 50 mm body: 11 lbs. / 5 kg
3 In. / 80 mm body: 15 lbs. / 7 kg
4 In. / 100 mm body: 19 lbs. / 9 kg
1. The pressure limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
Figure 3. Model Number Identification
Series
8 = 800
9 = 900
Size
20 = 2 in.
30 = 3 in.
40 = 4 in.
Pressure Type
SO = Pressure and Vacuum
PSO = Pressure Only
2
ES-800 and ES-900 Series
North America Only

Viton®is a mark owned by E. I. du Pont de Nemours and Company.
ES-900 SERIES NAMEPLATE LOCATIONES-800 SERIES NAMEPLATE LOCATION
Figure 4. Nameplate Location
Figure 5. ES-800 and ES-900 Series Weights Figure 6. Nameplate Example
Table 1. Vent Setting Range
MODEL SIZE PRESSURE VACUUM
ES-800-SO
2 through 4 in. / 50 through 100 mm 1.0 to 16.0 oz./sq. in. / 4.3 to 6.90 mbar
(0.5 oz./sq. in. / 2 mbar increments)
0.4 oz./sq. in. / 1.7 mbar
ES-800-PSO N/A
ES-900-SO 0.4 oz./sq. in. / 1.7 mbar
ES-900-PSO N/A
Table 2. Construction Materials
MODEL HOUSING SEAT / PALLET PALLET SEAL HARDWARE WEIGHTS GASKETS
ES-800-SO
Cast Aluminum
Aluminum
Buna-N or Viton®Zinc-plated carbon steel
Zinc-plated carbon steel
(to 12 oz./sq. in.)
or
Lead
Buna-N or Viton®
ES-800-PSO Polyphenylene Sulde (PPS)
ES-900-SO Aluminum
ES-900-PSO Aluminum
3
ES-800 and ES-900 Series
North America Only

The valve and its pallet assembly are
shipped separately. The pallet assembly
may be heavy and can cause personal
injury or damage to the unit if not
handled with care.
Prior to installation, remove the unit from its packaging
and discard any protective coverings. Below is a list of
instructions that are recommended for the installation
of an Enardo™ vent valve.
!
WARNING
ES-800 Series In-Line Vent Valve
1. Unbolt and remove the anges from the body.
2. Slide the ange onto the receiving pipe. Then
slide the slip-on gasket onto the pipe. The tapered
section of the gasket points away from the ange
and towards the valve. Repeat on the other pipe
using the second ange.
3. Reinstall the ange bolts and nuts, one on each
side. Tighten bolts until anges are ushed against
the body.
4. Install the pallet assembly. The center rib of the
pallet should be in-line with the rib on the body.
Then close the lid and tighten the wing-nuts on
both sides. Check for proper alignment between
the lid and pallet stem. If the pallet is not installed
correctly, the lid would not close.
ES-900 Series End-of-Line Vent Valve
1. Unbolt and remove the anges from the body.
2. Slide the ange onto the receiving pipe. Then
slide the slip-on gasket onto the pipe. The tapered
section of the gasket points away from the ange
and towards the valve (up).
4
ES-800 and ES-900 Series
North America Only

!
WARNING
3. Reinstall the ange bolts and nuts, one on each
side of the ange. Tighten bolts until ange is
ushed against the body.
4. Install the pallet assembly. The notch in the center
rib of the pallet should be in-line with the front
guide rod. Check for proper alignment between
the lid and pallet stem. Then close the hood and
tighten the wing-nut. If the pallet is not installed
correctly, the hood would not close.
Maintenance
Ensure the tank is at atmospheric
pressure before opening. A pressure
build-up inside the tank can cause a
spray to be emitted from the vent valve if
opened under pressure.
Do not use greases or oils on guide
rods. These will not allow the vacuum
assembly to work properly.
1. Remove the pallet assembly from the valve. Pull
the vacuum disk down until it stops and release it.
If the vacuum disk does not return to the closed
position, clean the rods with a mild solvent and
apply a graphite lubricant. If cleaning does not x the
problem, replace the pallet assembly immediately.
2. Check the vacuum disk for proper opening. Pull the
vacuum disk down until it stops and then rotate the
disk in both directions. If the vacuum disk does not
rotate freely, replace the pallet assembly immediately.
3. Inspect the vacuum gasket. Remove any debris on
this gasket. If there are any tears or holes in the
gasket, replace the pallet assembly immediately.
5
ES-800 and ES-900 Series
North America Only

!
WARNING
4. Inspect the pressure seal. Remove any debris on
this seal. If there are any tears or cracks in the
seal, replace the pressure seal immediately.
V-ring Replacement
Ensure the tank is at atmospheric
pressure before opening. A pressure
build-up inside the tank can cause a
spray to be emitted from the vent valve if
opened under pressure.
1. Remove the pallet assembly. Grasp the pressure
seal rmly by the lip and pull out.
2. Insert the new seal. Use a nger, wrench or other
smooth edge to apply a rm pressure while sliding
around the entire seal several times. When the
seal is completely seated, there will be no humps
or waves in the lip.
Parts Ordering
When corresponding with your local Sales O󰀩ce about
this equipment, always reference the equipment serial
number that can be found etched on the body.
When ordering replacement parts, specify the
complete 7-character part number of each required
part as found in the following parts list.
Parts List
ES-800 Series In-line Vent Valve
Key Description Part Number
1 Valve Body
2 in. / 50 mm 3514261
3 in. / 80 mm 3514297
4 in. / 100 mm 3514321
2 Lid
2 in. / 50 mm 3514264
3 in. / 80 mm 3514300
4 in. / 100 mm 3514335
3 Flange Gasket
2 in. / 50 mm 3505501
3 in. / 80 mm 3505502
4 in. / 100 mm 3505503
4 Pipe Plug 2023802
5 Slip-on Flange
2 in. / 50 mm 3508901
3 in. / 80 mm 3508902
4 in. / 100 mm 3508903
6 Hex Bolt
2 in. / 50 mm 2021203
3 in. / 80 mm 2021200
4 in. / 100 mm 2021200
7 Square Nut 2021901
8 Eyebolt 3505601
9 Wing Nut 2001002
10 Latch Pin 4505103
11 Latch Clip (HPC-148) 2027100
12 Pallet Assembly See Table 3
13 V-ring Seal See Table 4
14 Lid O-ring
Buna-N
2 in. / 50 mm 3514285
3 in. / 80 mm 3514318
4 in. / 100 mm 3514365
Viton®
2 in. / 50 mm 3514314
3 in. / 80 mm 3514319
4 in. / 100 mm 3514372
15 Nylock Nut 1/2-13
16 Pressure Weight (as required) - - - - - - -
Viton®is a mark owned by E. I. du Pont de Nemours and Company.
6
ES-800 and ES-900 Series
North America Only

ES-900 Series In-line Vent Valve
Key Description Part Number
1 Valve Body
2 in. / 50 mm 3514326
3 in. / 80 mm 3514337
4 in. / 100 mm 3514341
2 Hood
2 in. / 50 mm 3514329
3 in. / 80 mm 3514339
4 in. / 100 mm 3514343
3 Flange Gasket
2 in. / 50 mm 3505501
3 in. / 80 mm 3505502
4 in. / 100 mm 3505503
4 Slip-on Flange
2 in. / 50 mm 3508901
3 in. / 80 mm 3508902
4 in. / 100 mm 3508903
5 Hex Bolt
2 in. / 50 mm 2021203
3 in. / 80 mm 2021200
4 in. / 100 mm 2021200
Key Description Part Number
6 Square Nut 2021901
7 Eyebolt 3505601
8 Wing Nut 2001002
9 Latch Pin 4505103
10 Latch Clip (HPC-148) 2027100
11 Pallet Assembly See Table 3
12 V-ring Seal See Table 4
13 Guide Rod
2 in. / 50 mm 3514344
3 in. / 80 mm 3514345
4 in. / 100 mm 3514346
14 Lever 3514350
15 Lever Spring 3514351
16 Screen
2 in. / 50 mm 3514330
3 in. / 80 mm 3514347
4 in. / 100 mm 3514348
17 Pressure Weight (as required) - - - - - - -
Viton®is a mark owned by E. I. du Pont de Nemours and Company.
ES-800 SERIES ES-900 SERIES
NOTE: TOP LID AREA IS ROTATED 90 DEGREES
Figure 7. ES-800 and ES-900 Series Assembly Drawing
Table 3. Pallet Assembly Options
MODEL MATERIAL 2 In. / 50 mm 3 In. / 80 mm 4 In. / 100 mm
ES-800-SO or ES-900-SO Buna-N 3514269 3514271 3514273
Viton®3514270 3514272 3514274
ES-800-PSO or ES-900-PSO - - - - 3514268 3514294 3514333
Table 4. V-Ring Seal - Pressure Seal Options
MATERIAL 2 In. / 50 mm 3 In. / 80 mm 4 In. / 100 mm
Buna-N 3514286 3514316 3514323
Viton®3514313 3514317 3514324
7
ES-800 and ES-900 Series
North America Only

D103855X012 © 2015, 2020 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 04/20.
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 Automation Solutions.
The contents of this publication are presented for informational purposes
only, and while every e󰀨ort has been made to ensure their accuracy,
they are not to be construed as warranties or guarantees, express or
implied, regardingthe products or services described herein or their use
or applicability. All sales are governed by our terms and conditions, which
are available upon request. 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, Inc 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, Inc. product
remains solely with the purchaser.
Figure 8. ES-900 Series Assembly Drawing
NOTE: PARTS A AND B ABOVE ARE USED IN BOTH
ES-800 AND ES-900 SERIES. PART C VARIES
BASED ON THE MODEL.
ITEM ID DESCRIPTION
A Pallet assembly
B Pressure seal
C Valve body assembly
ES-800 and ES-900 Series
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