*mydirectindustry

Catalogs
Ridart srl
446 OVERFILL VALVE 2" - 3"

446 OVERFILL VALVE 2" - 3"

Product catalog summary

Overview
The 446 overfill valve is designed to prevent overflow of liquid during the filling operations of underground (UST) or aboveground (AST) storage fuel tanks, thereby avoiding environmental hazards. It complies with Directive 2014/34/EU and the harmonized standard EN ISO 13616.

Specifications
The valve is available in different models with specific dimensions and materials:

Models: 446-50, 446-50SS, 446-80, 446-80SS
Body Materials: Aluminium or Stainless Steel
Floating Material: PP HD
O-Ring Seal: VITON® or PTFE
Spring Material: Stainless Steel
Max Working Pressure: 4 bar
Min Working Pressure: 100 mbar

Installation
The valve is unidirectional and designed for vertical installation at the highest point of the tank, typically on the manhole cover. Final adjustments should be made after fixing. Installation can be for gravity or pumped filling, with features like positive shut-off and fast drain hose emptying. It is crucial to follow directives and the user manual for correct installation.

Maintenance
Regular checks are necessary to remove dirt and ensure proper functioning. The valve should be stored and handled correctly to prevent dust accumulation. Tampering voids the warranty and safety protection. The standard model is for traditional fuel, while the stainless steel model is suitable for special fuels and aggressive solvents.

Recommendations
For optimal performance, the operational pressure should not exceed 4 bar. An operator should supervise the loading process. If the liquid is not clear, a strainer before the valve is recommended to prevent damage from dirty particles.

Catalog excerpts

TheÊ446ÊoverﬁllÊvalveÊisÊdesignedÊtoÊavoidÊoverﬂowÊofÊliquidÊduringÊﬁllingÊopera onsÊofÊundergroundÊ(UST)Ê orÊabovegroundÊ(AST)ÊstorageÊfuelÊtankÊtoÊpreventÊenvironmentalÊhazards.ÊÊ ItÊisÊaÊdeviceÊÊaccordingÊwithÊDirec veÊ2014/34/EUÊandÊharmonizedÊstandardÊENÊISOÊ13616.ÊÊ

Open the catalog to page 1

Installa on -ÊProtec onÊSystemÊisÊunidirec onalÊandÊonlyÊforÊver calÊinstalla on -ÊTheÊvalveÊisÊinstalledÊatÊtheÊhighestÊpointÊofÊtheÊtank,ÊnormallyÊonÊtheÊmanholeÊcover -ÊTheÊﬁnalÊadjustmentÊisÊtoÊbeÊmadeÊa erÊitsÊﬁxing -ÊForÊcorrectÊinstalla onÊfollowÊtheÊDirec vesÊandÊproductÊUserÊManual - ForÊcustomÊapplica onÊorÊmaintenanceÊwriteÊto:Ê[email protected] -ÊDeclara onÊofÊConformityÊandÊUserÊManualÊareÊavailableÊon:Êwww.ridart.it/support Installa onÊdiagram Features ¨GravityÊorÊpumpedÊﬁlling ¨Posi veÊshut-oﬀ ¨FastÊdrainÊhoseÊemptyingÊ(lessÊthanÊ30Êsec/mt.) ¨RemoteÊorÊdirectÊﬁl

Open the catalog to page 2

ATTENTIONÊ * FlowÊandÊTurbolenceÊshouldÊmodifyÊini alÊandÊﬁnalÊclosureÊlevelÊbyÊ±20%.Ê TheÊbestÊperformancesÊallowedÊbyÊtheÊnewÊregula on:ÊÊ -ÊMaxÊopera onalÊpressureÊ4ÊbarÊforÊpressureÊﬁlling.Ê -ÊLoadingÊprocessÊneedsÊoperatorÊsupervisor. -Ê WhereÊ liquidÊ isÊ notÊ clearÊ aÊ strainerÊ beforeÊ theÊ valveÊ isÊ stronglyÊ recommendedÊ inÊ orderÊ toÊ guaranteeÊ aÊ properÊworkingÊofÊtheÊvalve.Ê DirtyÊpar clesÊinÊfactÊmayÊdamageÊtheÊmovingÊcomponentsÊcausingÊmalfunc oning. ChemicalÊSuitabilityÊ -ÊStandardÊmodelÊisÊforÊtradi onalÊfuelÊwithoutÊaddi ves. -ÊStainlessÊSteelÊisÊaÊmodelÊforÊspecialÊfuel,ÊaggressiveÊsolventsÊorÊcompa...

Open the catalog to page 3

446 OVERFILL VALVE 2" - 3"

446 OVERFILL VALVE 2" - 3"

Catalog excerpts

All Ridart srl catalogs and technical brochures