Emerson Enardo ES-665-HF Manuale utente

Figure 1. Model ES-665-HF Spring-loaded Hatch

Model ES-665-HF High Flow

Spring-Loaded Hatch

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™ spring-loaded hatch

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

spring-loaded hatch.

Introduction

Scope of the Manual

This Instruction Manual provides instructions for installation,

startup, maintenance and parts ordering information for the

Model ES-665-HF spring-loaded hatch.

Table of Contents

Introduction............................................................................1

Specifications ........................................................................2

Principle of Operation............................................................2

Tagging Information...............................................................2

Installation and Disassembly.................................................2

Maintenance..........................................................................5

Parts Ordering .......................................................................7

Parts List................................................................................7

MODEL ES-665-HF WITH CLOSED HATCH

MODEL ES-665-HF WITH OPEN HATCH

P1806

P1807

Product Description

The Model ES-665-HF high ow gauge hatch is designed

to provide much higher ow rates than standard gauge

hatches, while maintaining the industry leading, tight sealing

performance of the ES-665 Series. It also provides trouble

free operation with maintenance. The primary function of the

Model ES-665-HF high ow hatch is to prevent the loss of

vapors in a closed storage system and provide pressure and

vacuum relief.

Instruction Manual

D104266X012

March 2019

Model ES-665-HF

North America Only

Installation and Disassembly

WARNING

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 hatch if opened under pressure.

Installing the High Flow

Model ES-665-HF Hatch

1. The Model ES-665-HF hatch can be installed on a

mating ange or roof deck with a standard 8 in. API bolt

pattern (16 – 9/16 in. holes on a 10 – 3/8 in. bolt circle).

For installation of the hatch directly to the tank roof,

place the base gasket on the bottom of the hatch ange

and place on tank roof with bolt holes aligned.

2. Insert the 16 bolts from the bottom up by reaching

inside the tank, through the hatch opening and attach

each nut to the bolt from the outside. Tighten all nuts

in a star pattern (refer to Figure 3) and ensure the

hatch is fastened securely. Refer to Tables 2 and 3 for

torque instructions.

3. For installation of the Model ES-665-HF hatch to a

anged pipe with an 8 in. API ange pattern, simply

place the base gasket on the anged pipe, line up bolt

holes and place hatch on top of base gasket. Install nuts

and bolts and tighten in a star pattern (refer to Figure 3).

Ensure hatch is fastened securely. Refer to Tables 2 and

3 for torque instructions.

The Model ES-665-HF is a spring-loaded hatch with a

round base and cover. It can replace any standard 8 in. API

thief hatch. It has a higher volume of pressure venting than

offered by standard thief hatches and is intended for use

in applications where ultra-tight sealing is required such

as sour crude/gas tanks or where strict environmental

emissions standards are enforced.

Principle of Operation

Enardo gauge hatches are designed to control evaporation

losses and protect tanks against excessive pressure or vacuum.

When the tank pressure is above the setpoint of the hatch, the

cover opens to relieve excess pressure. When the overpressure

has dissipated, the cover reseats onto the base to provide

tight seal.

Tagging Information

The Model ES-665-HF high ow hatch has tagging

information on the spring capsule assembly and on the lid.

Figure 2 shows the typical locations of the tagging

information found on the Model ES-665-HF high ow hatch.

Location 1, on the spring capsule assembly, details the

pressure spring setting and the ow rate for that spring

setting when the tank pressure is at 24 oz./sq. in. Table 1

shows the ow rates at 24 oz./sq. in. for each pressure

spring setting.

Location 2, on the lid, details the vacuum setting and the

date of manufacture.

PRESSURE SETTING, OZ./SQ. IN. FLOW RATE SCFH (AIR) AT 24 OZ./SQ. IN. TANK PRESSURE

6 210,000

8 200,000

12 150,000

16 100,000

Table 1. Pressure Tagging Information

Viton® is a mark owned by E. I. du Pont de Nemours and Company.

Specications

The Specications table lists the specications for the Model ES-665-HF spring-loaded hatch.

Bolt Pattern

8 in. API

Pressure Setting Range(1)

6, 8, 12 and 16 oz./sq. in.

Vacuum Setting Range(1)

0.4, 0.9 and 3.5 oz./sq. in.

Optional Equipment

Base Gasket, Bolt Set and Non-Corrosive Coating

Construction Material

Casting: Aluminum (non-sparking)

Pressure Gasket: HNBR (standard), Viton®

and Fluorosilicone

Vacuum Gasket: Fluorosilicone (standard)

and Viton®

Approximate Shipping Weight

29 lbs / 13.2 kg

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

Model ES-665-HF

North America Only

Figure 2. Tagging Locations

NOMINAL PIPE DIAMETER NUMBER OF BOLTS BOLT DIAMETER TORQUE

In. mm Ft-lbs N•m

140.50 12.70 14 18.98

1-1/4 4 0.50 12.70 16 21.69

1-1/2 40.50 12.70 18 24.41

240.63 16.00 32 43.39

2-1/2 40.63 16.00 43 58.30

340.63 16.00 47 63.72

3-1/2 8 0.63 16.00 26 35.25

48 0.63 16.00 32 43.39

6 8 0.75 19.05 49 66.44

8 8 0.75 19.05 68 92.20

10 12 0.88 22.4 69 93.55

12 12 0.88 22.4 98 132.9

14 12 1.00 25.0 138 187.1

16 16 1.00 25.0 125 169.5

18 16 1.13 28.7 142 192.5

2 20 1.13 28.7 135 183.0

24 24 1.25 31.8 156 211.5

8 API 16 0.50 12.70 20 27.12

20 API 16 0.63 16.00 75 101.7

24 API 20 0.63 16.00 75 101.7

Assumptions: Use of SAE grade 5 bolts or studs or stronger

No lubricant

Elastomer <70 Durometer Shore A

Notes: Flat faced anges should never be mated to a raised face ange for installation.

If lubricant is used on bolts, apply torque reduction factor listed in Lubricant Table.

For best results hardened steel washers should be used on all cast ange bolted connections.

Figure 3 High Flow Hatch Torque Sequence

Table 2. Torque Values for Flat Face Flange (Steel or Aluminum)

DESCRIPTION COEFFICIENT OF FRICTION MULTIPLY TORQUE VALUE IN TABLE 2 BY

Machine Oil f = 0.15 0.75

API SA2 Grease f = 0.12 0.60

Nickel-based Lubricant f = 0.11 0.55

Copper-based Lubricant f = 0.10 0.50

Heavy-duty Lubricating Paste f = 0.06 0.30

Table 3. Torque Correction Factors for Common Lubricants Applied on Flanges

Model ES-665-HF

North America Only

Figure 4. Side View of Model ES-665-HF

Figure 5. View of Spring Capsule Assembly Screws

2. With the screws loosened enough to remove the spring

capsule assembly, press the spring capsule assembly

down against the spring pressure and rotate. Remove

the spring capsule assembly when the large slot on the

spring capsule assembly is properly aligned with the

bolt head.

Figure 6. Removal of Spring Capsule Assembly

1. Loosen the four (4) bolts that hold the spring capsule

assembly to the lid. The bolts can be loosened

approximately 1/8 in. or enough to allow rotation of the

spring capsule assembly in the machined slots. It is

not necessary to remove the bolts completely, as the

spring capsule assembly is designed with slots to allow

removal without having to remove the bolts.

Note

There will be slight spring pressure that

forces the spring capsule assembly upwards

as the bolts are loosened. This spring

pressure is not great enough to cause

the spring capsule assembly to have a

safety risk.

Accessing Spring Capsule Assembly or

Center Assembly

Note

The Spring Capsule Assembly must

be removed before removing the

Center Assembly.

The Model ES-665-HF Series Center

Assembly can also be installed as a retrot

into an existing Model ES-660-HF by

following the steps outlined in this section.

WARNING

Springs are energy storage devices and are

dangerous if handled improperly. Always

use appropriate safety equipment including

safety glasses or shields anytime you are

working with a spring-loaded hatch.

There are times when the spring capsule assembly may

need to be removed (e.g. to change the pressure setting

of the hatch) or to remove the center assembly (e.g. to

change the vacuum setting or to replace the gaskets) from

the Model ES-665-HF hatch. Remove the spring capsule

assembly and the center assembly by following a few

simple steps.

The arrow is pointing to the spring capsule assembly that

houses the pressure spring. The center assembly is not

shown in this view, but is located under the hood.

Model ES-665-HF

North America Only

Figure 8. View of Center Assembly

Figure 9. View of Lid Guide Slots

Figure 10. Removal of Center Assembly (Step 1)

Figure 7. Opening High Flow Hatch Lid

Figure 11. Removal of Center Assembly (Step 2)

3. To access the center assembly, press down slightly on

the lid and open the latch.

View of Model ES-665-HF high ow hatch with lid opened.

The arrow is pointing to the center assembly.

The center assembly is guided by slots in the lid.

4. To remove the center assembly, press the center

assembly inward until the center assembly bottoms

out against the inside of the lid, then turn the center

assembly one quarter rotation to the right or left to the

next set of guide slots (see Figure 10). Remove the

center assembly as shown in Figure 11. Be careful not

to drop the pivot pad that rests on top of the center

assembly and provides guidance for the spring capsule

assembly stem.

Maintenance

Perform a scheduled maintenance every three (3) months

and more frequently in corrosive or dusty atmospheres.

Inspect the pressure gaskets and vacuum gaskets for

normal maintenance. To ensure efcient operation of all

hatches, carefully wipe off the pressure and vacuum seats

and gaskets with a clean, non-abrasive, lint-free cloth or

paper towel every time the hatch is opened. This prevents

accumulation of residue that can deteriorate the performance

of the hatches.

Under average operating conditions, replace the pressure

and vacuum gaskets once a year. Replace the base gasket

when a leak is noticed at the bolting area or if the hatch

is removed, breaking the seal. If the hatch is continually

relieving, this is a sign that there is a problem. At that time, a

close inspection should be made to determine the cause.

Note

For parts information refer to the catalog

data sheet on each model. For ease of

part identication, see Figure 16 near the

end of the manual for an exploded view of

Model ES-665-HF high ow hatch.

Model ES-665-HF

North America Only

2. The pressure gasket can then be removed and

replaced. The envelope pressure gasket (See Table 4

for pressure gasket options) is enveloped around the

edge of the center assembly. Stretch the old gasket off

and t the new gasket around the circular lip. Ensure

that the bottom side of the pressure gasket is tted

properly in the groove on the bottom of the center

casting. Also ensure that the envelope pressure gasket

is installed squarely and at around the circumference

of the center. See Figure 14 for detailed view of the

pressure gasket and the center.

Vacuum Assembly

1. The vacuum gasket is located between the vacuum

pallet and the seal support on the vacuum assembly. The

vacuum assembly seals against the underside of the center

assembly. To remove the center assembly, rst remove the

spring capsule per Accessing Spring Capsule Assembly

or Center Assembly, steps 1 and 2. Remove the center

assembly under the same section with steps 3 and 4.

2. Once the center assembly is removed, remove the

cotter pin and the conical shaped vacuum spring from

the vacuum stem. Pull the vacuum assembly out from

the bottom side of the center assembly.

3. Remove and replace the vacuum gasket (See Table 5

for vacuum gasket options) from between the vacuum

pallet and the seal support.

4. Reassemble the vacuum assembly, spring and cotter

key in the reverse order of removal. Replace center

assembly into lid (See Section Accessing Spring

Capsule Assembly or Center Assembly and follow

steps 1 through 4 in reverse order). Ensure the pivot

pad is installed at on top of the center assembly before

the spring capsule assembly is attached. See Figure 15

for detailed view of the vacuum assembly.

High Flow (Model ES-665-HF) Hatch

Replacement Parts

Spring Capsule Assembly

WARNING

Under no circumstances should the user

attempt to disassemble the spring capsule

assembly. The spring capsule assembly

contains a pre-loaded spring and improper

handling could result in injury.

The spring capsule assembly comes as a pre-assembled

unit. If there is a need to change the pressure setting of the

Model ES-665-HF hatch or to replace an existing spring

capsule assembly, the appropriate spring capsule assembly

can be ordered. Simply follow the instruction in Accessing

Spring Capsule Assembly or Center Assembly steps 2 and 3

in reverse order to install the spring capsule assembly.

Center Assembly

See Figure 13. The center assembly consists of the pressure

gasket, the center casting and the vacuum assembly.

Although not part of the center assembly, the pivot pad is

shown for additional clarity of its relationship to the center

assembly. The pivot pad is not attached to the center

assembly, but rests on top of it to transfer the spring force

from the spring capsule assembly to the center assembly.

Pressure Gasket and Center

1. To remove the center assembly, rst, remove the spring

capsule per Accessing Spring Capsule Assembly or

Center Assembly, steps 1 and 2. Then remove the

center assembly from the same section steps 3 and 4.

Figure 13. Center Assembly Figure 14. Center and Pressure Gasket

Figure 12. Spring Capsule Assembly

Model ES-665-HF

North America Only

Parts Ordering

When corresponding with your local Sales Ofce about this

equipment, always reference the equipment serial number

stamped on the nameplate.

When ordering replacement parts, specify the complete

7-character part number of each required part as found in

the following parts list.

Parts List

Vacuum Assembly

Key Description Part Number

1 Vacuum Stem, Aluminum 8568825

2 Flat Washer, 3/8 in., 316 Stainless steel 2012504

3 010 O-ring, Viton®2012710

4 Seal Support, Aluminum 8554636

5 Vacuum Gasket Per order

6 Vacuum Pallet Disk, Aluminum 8559029

7 Hex Nylock Nut, 3/8 in. - 16, 316 Stainless steel 2059201

Model ES-665-HF Hatch

Key Description Part Number

1 Spring Capsule Per order

2 Hex Bolt, 1/4 in. - 20 x 5/8 in.,

316 Stainless steel (4 required) 2035901

3 Center Pad, Aluminum 4557001

4 Latch, Aluminum 4524100

5 #5-C Latch Pin, Zinc-plated Carbon steel 4504103

6 #HPC - 148 Hinge Pin Clip,

Zinc-plated Carbon steel (2 required) 2027100

7 Lid, Aluminum 4522001

8 #70 Envelope Gasket Per order

9 Cotter Pin, 1/8 x 1 in., 304 Stainless steel 2022101

10 Vacuum Stem, Aluminum 8568825

11 Vacuum Spring Per order

12 Center, Aluminum 4556002

13 Flat Washer, 3/8 in., 316 Stainless steel 2012504

14 010 O-ring, Viton®2012710

15 Seal Support, Aluminum 8554636

16 Vacuum Gasket Per order

17 Vacuum Pallet Disk, Aluminum 8559029

18 Hinge Spring, 302 Stainless steel 4504005

19 Clevis Pin, 5/6 x 2 1/2 in., Zinc-plated Carbon steel 4505110

20 Hex Nylock Nut, 3/8 in. - 16, 316 Stainless steel 2059201

21 Base, Aluminum 4507303

22 Cotter Pin, 1/8 x 1/2 in.,

304 Stainless steel (2 required) 2000703

23 Clevis Pin, 5/16 x 3 1/2 in., Zinc-plated Carbon steel 4505112

Viton® is a mark owned by E. I. du Pont de Nemours and Company.

Inconel® is a mark owned by Special Metals Corporation.

SETTING, OZ./SQ. IN. MATERIAL COLOR 1 COLOR 2 PART NUMBER

0.4 H.D. Steel (Galvanized) Light Blue Light Blue 4503700

0.9 Drawn CS Wire (Galvanized) Gray Gray 4504100

3.5 H.D. Steel (Galvanized) Yellow Yellow 4503900

0.4 Inconel®Light Blue White 4503800

0.9 Inconel®Gray White 4504200

Table 7. Vacuum Spring Options

SETTING, OZ./SQ. IN. PART NUMBER

64556201

84556202

12 4556203

16 4556204

Table 6. Spring Capsule Options

MATERIAL PART NUMBER

HNBR (Standard) 4504601

Viton®4504603

Fluorosilicone 4504605

MATERIAL PART NUMBER

Fluorosilicone (Standard) 4504705

Viton®4504708

Table 4. Pressure (Envelope) Gasket Options

Table 5. Vacuum Gasket Options

Model ES-665-HF

North America Only

Figure 15. Vacuum Assembly Figure 16. Model ES-665-HF High Flow Hatch

Exploded View

PALLET DISK GROOVE SIDE UP

Model ES-665-HF

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Enardo.com

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 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.

North America Only

Emerson Automation Solutions

Americas

McKinney, Texas 75070 USA

T +1 800 558 5853

+1 972 548 3574

Tulsa, OK 74146 USA

T +1 918 662 6161

Europe

Bologna 40013, Italy

T +39 051 419 0611

Asia Pacic

Singapore 128461, Singapore

T +65 6777 8211

Middle East and Africa

Dubai, United Arab Emirates

T +971 4 811 8100

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