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Emergency Vents
<br /> U�
<br /> Emergency Vent
<br /> Emergency vent(pressure relief
<br /> only)used on aboveground Iwo
<br /> storage tanks,as a code require-
<br /> ment that helps prevent the tanks -
<br /> from becoming over-pressurized
<br /> and rupturing if exposed to fire. Fig,244 Fig.244M Fig.2441`
<br /> UL listed except for 2".
<br /> Description RNTNGe 244 emergency vent is,for"emergency
<br /> The 244 emergency vent consists of a body and a black pressi-im ibir(Wonly'and must be used in conjunction with
<br /> powder coated cover(2"not powder coated)that moves a'normal vent'ar pressure vacuum vent such as a Morrison
<br /> up and down on a center pin.Pressure inside the tank
<br /> forces the cover to lift up off the vent seat,allowing air to The 244 emergency vent must be property sized
<br /> exhaust.The center pin guides the movement.When - ,
<br /> pressure falls the cover lowers back down onto seat and the proper 'venting capacity'recluirements� See the Morrison
<br /> the
<br /> op-
<br /> the vent is automatically reset. Vent Guide for further nstructions
<br /> Code Compliance Material and Configuration Options
<br /> When properly sized for the tank,this vent will conform to Aluminum Body or Iron Body...suffix(1)indicates iron.
<br /> the requirements of AIFPA 30,30A,LTL 142,UL 2244,API Metal-to-Metal Seat(brass)or Soft Seat(Viton®)...suffix
<br /> 2000,and PEI RP200. (0)indicates o-ring.
<br /> Opening Male/Female NPT/BSP or Flanged Mounting
<br /> Pressure Ship Venting Mounting Connection M indicates male,and suffix F
<br /> Fig. No. Size Setting Weight Capacity Connection ( ) ( )
<br /> (oVsq in) (Ibs) ("Estimated CFH indicates flanged.
<br /> 244&
<br /> 8 2.5 PSI) Opening Pressure Setting...settings indicated are approxi-
<br /> 2440 4' 8.0 10.65 119,750 Female NPT/BSP mate.
<br /> 16.0 21.00 119,750 Female NPT T=Tall Body...8"only order for use on tite wrapped tanks.
<br /> 6" 8.0 15.50 246,130 Female NPT/BSP
<br /> 16.0 33.15 246,130 Female NPT Emergency vent should be set higher than the normal vent
<br /> 8" 8.0 34.70 462,000 Female NPT so the normal vent operates first.
<br /> 16.0 68.00 462,000 Female NPT
<br /> 244F& Use 76 oz.o-ring to comply with pressure decay test.
<br /> 2440F Contact factory for assistance.
<br /> 6" 8.0 24.8 298,750 Flanged Opening
<br /> 16.0 44.2 298,750 Flanged Pressure Ship Venting Mounting
<br /> 8' 8.0 42.00 509,550 Flanged Fig. No. Size Setting Weight Capacity Connection
<br /> 16.0 75.00 509,550 Flanged (ozlsq in) (Ibs) ('Estimated CFH
<br /> 10" 2.5 32.00 808,350 Flanged ® 2.5 PSI)
<br /> 8.0 71.00 808,350 Flanged 24401 4' 8.0 13.65 119,750 Female NPT
<br /> 16.0 125.00 808,350 Flanged 16.0 24.00 119,750 Female NPT
<br /> 6' 8.0 20.63 246,130 Female NPT
<br /> 244 8 (2'arx?TOMonly) 16.0 38.28 246,130 Female NPT
<br /> 40M 2" 8.0 1.0 21,100' Male NPT/BSP 8- 8.0 44.33 462,000 Female NPT
<br /> 3" 8.0 5.75 59,900 Male NPT/BSP 16.0 77.63 462,000 Female NPT
<br /> 4" 8.0 11.55 119,750 Male NPT
<br /> 16.0 21.25 119,750 Male NPT/BSP 2440MI (3"0M1 Only)
<br /> 6' 8.0 19.45 246,130 Male NPT 3" 8.0 8.00 59,900 Male NPT
<br /> 16.0 35.00 246,130 Male NPT/BSP 4" 8.0 16.36 119,750 Male NPT
<br /> 8" 8.0 34.00 453,300 Male NPT 16.0 26.06 119,750 Male NPT
<br /> 16.0 68.00 453,300 MaleNPT 6" 8.0 27.76 246,130 MaIe NPT
<br /> 16.0 43.31 246,130 MaIe NPT
<br /> 2440H 6" 8.0 21.50 298,750 Female NPT 8' 80 3463 453,300 Male NPT
<br /> 16.0 41.40 298,750 Female NPT 16.0 75.36 453,300 Male NPT
<br /> 2440MH 6" 8.0 23.00 298,750 Male NPT 2440MT 8' 8.0 40.5 453,300 Male NPT
<br /> 16.0 42.9 298,750 Male NPT 16.00 71.5 453,300 Male NPT
<br /> s.
<br /> u-w on shop ,br icabx[anno.spheric tanks which have luen buiJ t and totArdinutecard ance with LJ L 142,_NFFA 30&30A,and A Pf 650 and inaccordarace with all applicable
<br /> local,statear d finteral tcr�.Ea normal operation,duet and delun cartaccuounflate,in�toperiings and block atrpcssages.Certaurabrnospherrccondifi�suou�asudden
<br /> ond blixkAr p.��ago,AITt.,ge tank�eru'air pas,,,gc�eaust heoropletefy fre,of oe,uifuuand all vort racehanisaes must have free reoverneru in order to firoure proper
<br /> op��atne,Ary testriction of and.,c.,.ese pressure or vacuumn to buird up in thestarage tank,which con reault in structural dacnag�to the tank,faulspillage,
<br /> 1.�.k I.B,L,required to a.,,v erutngd,�krs an,fimothaing property before filling ortuilicadinga tank
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<br /> Page 20 " Morrison Bros.Co. 800.553.4840
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