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Instruction Manual
March 2015
8 Series High Pressure Deflagration
Flame Arrestor
Table of Contents
Introduction .................................................................. 1
Specifications .............................................................. 2
Principle of Operation .................................................. 3
Factors Affecting Flame Arrestor Performance ........... 4
Installation ................................................................... 5
Maintenance ................................................................ 7
Recommended Spare Parts ...................................... 10
Parts Ordering ........................................................... 10
Parts List.................................................................... 10
WARNING
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
causing property damage and personal
injury or death.
Enardo high pressure deflagration flame
arrestors 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 (Emerson™) instructions.
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 shall install
or service the 8 Series high pressure
deflagration flame arrestor.
Figure 1. 8 Series High Pressure Deflagration Flame Arrestor
Introduction
Scope of the Manual
This manual provides specifications, installation
and maintenance instructions and parts ordering
information for the 8 Series high pressure
deflagration flame arrestor.
Product Description
8 Series high pressure deflagration flame arrestors is
designed to protect equipment against high velocity
and pressure flame fronts inherent in applications
beyond the performance range of a standard flame
arrestor but not yet to the detonation phase of flame
development and provide an economical alternative
to a detonation arrestor. The 8 Series high pressure
deflagration flame arrestor is designed to surpass
standard flame arrestors for applications that
include extended lengths of pipe with one bend,
elevated operating pressures and extended flame
stabilization on the flame cell element. The arrestors
are bi-directional and can stop low, medium and high
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8 Series
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Table of Contents
Related Manuals for Emerson ENARDO 8 Series
Summary of Contents for Emerson ENARDO 8 Series
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Page 1: Table Of Contents
Product Description federal, state and local codes, rules and regulations and Emerson Process 8 Series high pressure deflagration flame arrestors is Management Regulator Technologies designed to protect equipment against high velocity Tulsa, LLC (Emerson™) instructions. -
Page 2: Specifications
8 Series Specifications The Specifications table lists the specifications for the 8 Series high pressure deflagration flame arrestors. Specification is stamped on the nameplate attached to the flame arrestor. Available Construction Temperature Rating of Gaskets See Table 1 and Figure 2 Fiber Gaskets (standard): 450°F / 232°C or higher Gas Group Pipe Length... -
Page 3: Principle Of Operation
8 Series FLAME STABILIZED ON FLAME ARRESTOR ELEMENT ABSORBS ARRESTOR ELEMENT AND QUENCHES FLAME FRONT PIPING EXPOSED SIDE PROTECTED SIDE Figure 3. Flame Arrestor Operation Table 1. 8 Series High Pressure Deflagration Flame Arrestor Available Construction FLANGE SIZE HOUSING SIZE MODEL 80802 80803... -
Page 4: Factors Affecting Flame Arrestor Performance
8 Series Table 2. Maximum Experimental Safe Gap (MESG) MESG NATIONAL ELECTRIC CODE (NEC) TEST GAS LIST Group B 0.011 0.28 Hydrogen Group C 0.026 0.65 Ethylene Group D 0.035 0.90 Propane G.M. 0.044 1.12 Methane Table 3. 8 Series High Pressure Deflagration Flame Arrestor Endurance Burn Time HIGH PRESSURE DEFLAGRATION FLAME ARRESTORS - ALL SIZES Maximum Initial Pressure Gas Group... -
Page 5: Installation
8 Series Table 4. 8 Series High Pressure Deflagration Flame Arrestor, For All Sizes Pipe Length Rules GAS GROUP “B” GAS GROUP “C” GAS GROUP “D” Maximum length of pipe between the flame arrestor and the ignition source with a maximum of one 90° 15 ft. - Page 6 8 Series Standard compressed fiber gaskets that will as clean-out ports, temperature monitoring device or withstand temperatures of 450°F / 232°C or higher other options that might have a preferred installation are normally used, but other materials of equal or direction to suit the needs of the customer.
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Page 7: Maintenance
8 Series Maintenance 7. The cleaning interval should be governed by the amount and type of particulate in the system to which it is installed and must be determined by WARNING the user. To determine the maintenance interval the user should check the element in the first few months of operation to find how quickly particulate Flame cells must be inspected for accumulates in the cells. - Page 8 8 Series PATTERN 1 PATTERN 2 PATTERN 3 PATTERN 4 PATTERN 5 PATTERN 6 PATTERN 7 Figure 4. Flange Pattern Tightening Sequence Table 5. Tightening Steps and Torque Values (1)(2) TIGHTENING STEPS AND TORQUE (lbf-ft / N•m) Model Pattern Bolt size, In. Step 1 Step 2 Step 3...
- Page 9 8 Series Table 6. Torque Correction Factors for Common Lubricants DESCRIPTION COEFFICIENT OF FRICTION MULTIPLY TORQUE VALUE IN TABLE 5 BY Machine Oil f = 0.15 1.00 API SA2 Grease f = 0.12 0.80 Never-Seez (Ni base) f = 0.11 0.73 ®...
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Page 10: Recommended Spare Parts
8 Series Parts Ordering Recommended Spare Parts When corresponding with your local Sales Office about For installations that require frequent maintenance and this equipment, always reference the equipment serial minimum downtime it is recommended that the user number stamped on the nameplate. purchase a spare element assembly and several spare element gaskets. - Page 11 8 Series Table 8. Replacement Element Assemblies Part Numbers (Group D Gas) HOUSING MATERIAL CARBON STEEL 304 STAINLESS STEEL CARBON STEEL Flame Cell Material 304 Stainless Steel 304 Stainless Steel 316 Stainless Steel Model Part Number 80802, 80803, 80804 8000903 8000922 8000901 81206...
- Page 12 For further information visit www.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 Process Management.