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442B Overfill Prevention valve

442B Overfill Prevention valve
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442B Overfill Prevention valve

Product catalog summary
Overview: The Overfill Prevention Valve Ridart is designed to prevent overfilling during the transfer of hazardous fluids. It is applicable in sectors such as petrochemical and pharmaceutical industries. The valve operates automatically, ensuring no residual liquid remains in the pipe post-loading, and requires operator supervision during refueling.
Compliance and Standards: This safety device complies with ATEX Directives 2014/34/EU, EN ISO 13616-1:2016, EN ISO 80079-36:2016, and other relevant technical norms and amendments.
Specifications:
  • Operational pressure: 8 bar for 3” model, 6 bar for 4” model.
  • Installation: Vertical, with gravity or pumped filling options.
  • Materials: Aluminum body, stainless steel screws, poppet, support, and spring, with PTFE + Carbon seals.
  • Flow rates: Minimum 60 l/min for 3” and 90 l/min for 4” at 230 mbar; Maximum 900 l/min for 3” at 8 bar and 1400 l/min for 4” at 6 bar.
Installation and Maintenance:
  • Unidirectional protection system for vertical installation only.
  • Periodic checks are necessary to remove dirt and ensure proper storage and handling to prevent dust accumulation.
  • Maintenance should be performed by specialized staff using appropriate tools as per EN 1127-1 standards.
  • Installation must comply with local/national laws regarding tank capacity requirements.
Safety and Usage Recommendations:
  • Operators must be trained to inspect loading adaptors and hoses to prevent spills and environmental contamination.
  • Ensure connections between adaptors and hoses are correctly performed to avoid explosion risks.
Additional Information: For custom applications or maintenance inquiries, contact [email protected]. Product certification, user manuals, and testing information are available at www.ridart.it/support.
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Catalog excerpts

442B Overfill Prevention valve-1

TheÊOverfillÊPreven onÊ ValveÊRidartÊisÊusedÊtoÊpreventÊanyÊpossibleÊoverfillÊduringÊchargingÊhazardousÊorÊ dangerousÊfluids.Ê -ÊApplica on:Êpetrochemical,Êpharmaceu calÊ&Êmore. -ÊValveÊopensÊandÊclosesÊautoma cally.Ê -ÊNoÊresidualÊliquidÊinÊpipeÊatÊtheÊendÊofÊloadingÊprocess. -ÊTheÊoperatorÊcannotÊleaveÊtheÊpumpÊduringÊtheÊrefuelingÊprocess. It’sÊ aÊ SafetyÊ DeviceÊ inÊ accordingÊ withÊ Direc vesÊ ATEXÊ 2014/34/EU,Ê ENÊ ISOÊ 13616-1:2016,Ê ENÊ ISOÊ 8007936:2016,ÊTechnicalÊNormÊFireÊPreven onÊ41/256Ê31/10/2019,Êd.P.R.Ê10/520Ê19/03/1955ÊandÊsubsequentÊ amendments.ÊÊ A en on *ÊFlowÊandÊTurbolenceÊshouldÊmodifyÊini alÊandÊfinalÊclosureÊlevelÊbyʱ20%.Ê TheÊbestÊperformancesÊallowedÊbyÊtheÊnewÊregula on:ÊÊ -ÊMaxÊopera onalÊpressureÊ8ÊbarÊforÊpressureÊfillingÊ3”ÊmodelÊvalve.Ê -ÊMaxÊopera onalÊpressureÊ6ÊbarÊforÊpressureÊfillingÊ4”ÊmodelÊvalve.Ê -ÊLoadingÊprocessÊneedsÊoperatorÊsupervisor. ChemicalÊSuitability -ÊÊAluminiumÊstandardÊmodelÊisÊforÊtradi onalÊfuelÊwithoutÊaddi ves. Features GravityÊorÊpump

 Open the catalog to page 1
442B Overfill Prevention valve-2

INSTALLATION THREAD UP THREAD DOWN HEIGHT BODY TYPE OF FILLING INITIAL CLOSURE LEVEL* FINAL CLOSURE LEVEL* MIN FLOW l/min (230 mbar) 442B-80 AL VERTICAL 3"F BSPP 3"F BSPP 390 mm GRAVITY or PUMP 250 mm 135 mm 60 Required by standard (8 bar) 900 l/min Required by standard STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL 442B-100 AL VERTICAL 4"F BSPP 4"F BSPP 453 mm GRAVITY or PUMP 250 mm 145 mm 90 Required by standard (6 bar) 1400 l/min Required by standard STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL V»a Adua 17 Gazzada Sdiiannc (VA) Made rt Italy RIDART S.R.L. www.rldart.it...

 Open the catalog to page 2
442B Overfill Prevention valve-4

Above zinc-plated Iron tube " Nfenhole Above zinc-plated steel tube tine-plated steel tube ORIENTATE DEVICE WITH OTHERS INTERNAL PIPES CORRECT POSITIONS

 Open the catalog to page 4
442B Overfill Prevention valve-5

Installa on -ÊProtec onÊSystemÊisÊunidirec onalÊandÊonlyÊforÊver calÊinstalla on. -ÊForÊcorrectÊinstalla onÊfollowÊtheÊDirec vesÊandÊproductÊUserÊManual.Ê -ÊForÊcustomÊapplica onÊorÊmaintenanceÊwriteÊto:Ê[email protected]. -ÊDeclara onÊofÊConformityÊandÊUserÊManualsÊareÊavailableÊon:ÊÊÊwww.ridart.it/support. BeforeÊproceedingÊwithÊinstalla onÊbeÊsureÊthatÊvalveÊmodelÊisÊinÊcomplianceÊwithÊlocal/na onalÊlawsÊwhichÊ regulateÊthisÊspecificÊdeviceÊinÊrela onÊtoÊtankÊcapacityÊrequirements,ÊnormallyÊ90%.Ê TheÊvalveÊcanÊbeÊinstalledÊunderÊtheÊmanholeÊlidÊofÊtheÊtankÊinÊanÊexistentÊ4”ÊriserÊpipe,ÊthereÊisÊnoÊneedÊtoÊ...

 Open the catalog to page 5

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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