background image

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

2

EN FVFA Series

North America 

Only

Specifications

The Specifications section lists the specifications for the EN Free Vent Flame Arrestors. The following information is stamped on the 

nameplate attached to the arrestor: model number, flange size and rating, maximum initial operating pressure, EN number (European 

Standard), EU type examination certificate, notified body number, gas group, date of manufacture and serial number; other identification and 

customer tag number are optional.

Available Constructions

See Table 1 and Figure 2

Gas Group

IIA and IIB3

Flange Sizes and Rating

2 to 16 in. / 50 to 400 mm 

CL150 RF and CL150 FF 

Housing Size

4 to 30 in. / 100 to 750 mm

Maximum Experimental Safe Gap (MESG)

See Table 2

Maximum Initial Operating Pressure

(1)

Atmospheric

Maximum Operational Temperature (T

o

)

(1)

140°F / 60°C

Temperature Rating of Housing Gaskets

(1)

Fiber Gaskets (standard):

 450°F / 232°C

Graphite/Metal (optional):

 1600°F / 870°C

Burning Time Rating

 Less than 1 minute

Housing Material

Carbon steel, 304 Stainless steel,  

316 Stainless steel and Hastelloy

®

Element Material

304 Stainless steel, 316 Stainless steel  

and Hastelloy

®

Certification

EN ISO-16852:2016

Table 1. 

EN FVFA Series Available Construction

MODEL

FLANGE SIZE

HOUSING SIZE

CERTIFICATION

In.

mm

In.

mm

IIA

IIB3

EN-FVFA-0402

2

50

4

100

X

X

EN-FVFA-0603

3

75

6

150

X

X

EN-FVFA-0803

3

75

8

200

X

X

EN-FVFA-0804

4

100

8

200

X

X

EN-FVFA-1206

6

150

12

300

X

X

EN-FVFA-1608

8

200

16

400

X

X

EN-FVFA-2010

10

250

20

500

X

X

EN-FVFA-2412

12

300

24

600

X

X

EN-FVFA-3014

14

350

30

750

X

EN-FVFA-3016

16

400

30

750

X

Table 2

. Maximum Experimental Safe Gap (MESG)

NATIONAL ELECTRIC 

CODE (NEC) GROUP

INTERNATIONAL 

ELECTROTECHNICAL 

COMMISSION (IEC) GROUP

MESG

TEST GAS LIST

In.

mm

Group D

Group IIA

0.035

>0.90

Propane

Group C

Group IIB3

0.026

≥0.65

Ethylene

Group B

Group IIC

0.020

<0.50

Hydrogen

Hastelloy

®

 is a mark owned by Haynes International, Inc.

Содержание Enardo EN FVFA Series

Страница 1: ...ement Regulator Technologies Tulsa LLC instructions Failure to correct trouble could result in a hazardous condition Call a qualified service person to service the unit Installation operation and maintenance procedures performed by unqualified person may result in improper adjustment and unsafe operation Either condition may result in equipment damage or personal injury Only a qualified person mus...

Страница 2: ...tional Temperature To 1 140 F 60 C Temperature Rating of Housing Gaskets 1 Fiber Gaskets standard 450 F 232 C Graphite Metal optional 1600 F 870 C Burning Time Rating Less than 1 minute Housing Material Carbon steel 304 Stainless steel 316 Stainless steel and Hastelloy Element Material 304 Stainless steel 316 Stainless steel and Hastelloy Certification EN ISO 16852 2016 Table 1 EN FVFA Series Avai...

Страница 3: ...revents unconfined deflagration from entering a tank or enclosure BC b Indicates the flame arrestor is for short time burning not to exceed 1 minute Ex G IIA Indicates the arrestor is rated for use in Explosion Group IIA vapors Ex G IIB3 Indicates the arrestor is rated for use with Explosion Group IIB3 vapors To Indicates maximum operational temperature of flame arrestor Note Models Enardo EN FVFA...

Страница 4: ... accommodate the specific gas group that could possibly ignite and propagate in the system The more explosive gases require the flame cell to absorb the heat more quickly and efficiently The International Electrotechnical Commission IEC groups gases and vapors into Groups IIA through IIC categories depending on a number of factors including the Maximum Experimental Safe Gap MESG of the gas Maximum...

Страница 5: ...stor elements shall not be cleaned by rodding to remove blockages as this practice could damage the elements and seriously impair the arrestor s performance If the arrestor element cannot be cleaned satisfactorily it must be replaced Table 4a Torque Values for Raised Face Connection Flange Steel Only NOMINAL PIPE DIAMETER NUMBER OF BOLTS BOLT DIAMETER TORQUE In mm Ft lbs N m 1 4 0 50 12 70 9 12 20...

Страница 6: ...0402 EN FVFA 0603 EN FVFA 0802 EN FVFA 0803 EN FVFA 0804 1 Snug 20 27 50 68 EN FVFA 1206 2 Snug 20 27 50 68 EN FVFA 1608 3 Snug 25 34 50 68 80 108 EN FVFA 2010 3 Snug 25 34 50 68 75 102 100 135 EN FVFA 2412 4 Snug 35 47 70 95 100 135 130 176 EN FVFA 3014 and EN FVFA 3016 5 Snug 35 47 70 95 100 135 130 176 1 Using machine oil as lubricant See Bolt Lubrication section below and torque correction fac...

Страница 7: ...ry Element Re assembly 1 Thoroughly clean the gasket sealing faces being careful not to damage the sealing surface Lightly grease one side of a new gasket and place it in the machined recess of the interior flange on the conical sections and in the upper flange 2 Replace the flame element assembly with a new assembly or properly cleaned and inspected existing unit 3 Re assemble in the reverse orde...

Страница 8: ...sume 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 Bolt Lubrication Enardo provides low friction polymer coatings on carbon steel element assembly fasteners No additional lubrication should be required When stainle...

Отзывы:

Похожие инструкции для Enardo EN FVFA Series