Emerson Varec 5010 Series Installation, Operation And Maintanance Instructions

Varec SerieS 5000/5010 Flame arreSterS
InstructIon, operatIon and maIntenance manual
Before installation these instructions must be fully read and understood
5000 series -
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DISclaIMer OF WarraNtIeS
the contract between the seller and the buyer
states the entire obligation of the seller. the
contents of this instruction manual shall not
become part of or modify any prior or existing
agreement, commitment or relationship
between the seller and buyer. there are no
express or implied warranties set out in this
instruction manual. the only warranties that
apply are those in the existing contract between
the seller and buyer.
the Varec 5000/5010 Series flame arresters
have not been tested by Varec under all
possible operational conditions and Varec
does not have all the data relative to your
application. the information in this instruction
manual is not all inclusive and does not and
cannot take into account all unique situations.
Consequently, you should review this product
literature in view of your application. if you have
any further questions, please contact Varec for
assistance.
lIMItatIONS OF Seller'S lIabIlIty
if it is determined that this instruction manual
created some new warranties, Varec's liability
shall be limited to repair or replacement under
the standard warranty clause. in no case
shall Varec's liability exceed that stated as
limitations of remedy in the contract between
Varec and our customer.
emerson.com/Finalcontrol
5010 series -
SaFety precautIONS
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Read and understand this instruction manual
before installing, operating or performing
maintenance on varec 5000/5010 series flame
arresters. Follow all precautions and warnings
noted herein when installing, operating or
performing maintenance on this equipment.
WarNINg
Flame arresters should be installed upstream and
not more than 15 feet from the ignition source for
use in accordance with UL approval.
Flame arresters must be isolated from the gas
piping before performing maintenance. All gas
must be blocked and pressure safely vented.
Flame arresters are not capable of stopping
a flame front in mixtures of air with hydrogen,
acetylene, ethylene oxide, or carbon disulfide.
Safety precaution definitions:
cautION
Damage to equipment may result if this precaution
is disregarded.
WarNINg
Direct injury to personnel or damage to equipment
which can cause injury to personnel may result if
this precaution is not followed.
geNeral
the Varec model 5000/5010 Series flame
arresters are designed to stop the propagation
of flame from external sources. they are used
on storage tank roofs, digester covers and in
waste gas piping systems. these units are
installed where fire protection is required in
combination with pressure relief or shut-off
valves in vapor balancing, recovery or open vent
piping systems.
WarNINg
Flame arresters are not capable of stopping
a flame front in mixtures of air with hydrogen,
acetylene, ethylene oxide, or carbon disulfide.
Flame arrester should be installed upstream
of and not more than 15 feet from the ignition
source for use in accordance with Ul aproval.
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NOte
Varec flame arresters bearing Ul approval are tested
for use on oil storage tanks, installed not more than
15 feet from the open end of the vent pipe (reference
Ul 525). these test conditions may not represent the
actual service conditions or piping system design. aPi
publication 2028 states that the arresters should be
independently tested under actual service conditions
before installation.
engineering Doc. #33-07765 rev. G
VcIOM-03772-eN 18/02