Bronze Scoop Thru Hull Fittings

Indicative PriceUS$ 13.40 / KilogramMaterial: BronzeMin. Order: 1 KilogramSupply Ability: As per requirement* Price is indicative and may vary based on specifications, quantity, and market conditions. Contact us for exact quote.Bronze Scoop Thru Hull Fittings, Bronze Marine Fittings High-Performance Marine Water Intake Systems with Integrated Straining TechnologyRate: US$ 14.00/kilogramProduct OverviewBronze Scoop Thru Hull fittings represent the pinnacle of marine water intake technology, combining the essential functions of raw water intake and debris straining in a single, robust bronze casting. These specialized marine fittings are engineered for high-speed water pickup applications, featuring a distinctive scooped design that optimizes water flow while preventing air locks and turbulence.Manufactured from premium marine-grade Bronze alloy (typically 88% copper, 12% tin with aluminum additives for enhanced corrosion resistance), or LG2 or CDA 836 – C86000 Gunmetal bronze,  these fittings deliver exceptional durability and reliability in harsh marine environments. The integrated strainer design serves as the first line of defense against debris, protecting downstream equipment and systems.Key Features & BenefitsIntegrated Strainer DesignCombines water intake and straining functions in a single fitting, eliminating the need for separate components and reducing installation complexity.High-Speed PerformanceScooped profile directs water efficiently into the intake while preventing air lock formation at higher vessel speeds.Premium Bronze ConstructionCast from marine-grade bronze with extra-sturdy wall thickness for maximum durability and corrosion resistance.Versatile ApplicationsSuitable for engine cooling, air conditioning, bait tanks, washdown systems, and general raw water applications.Easy InstallationFour mounting holes in strainer flange allow for secure attachment and enable single-person installation procedures.Complete AssemblyIncludes flanged jam nut for secure hull mounting and watertight seal integrity.Technical Specifications & SizingOur Bronze Scoop Thru Hull fittings are available in five standard sizes to accommodate various flow requirements and vessel applications: Part NumberThread Size (NPS)Length A (in)Hull Thickness B (in)Overall Length C (in)Flange Diameter D (in)BST-500-W1/2″2.201.053.282.55BST-750-W3/4″2.201.054.003.05BST-1000-W1″2.851.054.003.05BST-1250-W1-1/4″2.901.204.303.35BST-2000-W2″3.601.505.754.00Material SpecificationsAlloy: Marine Grade Bronze (ASTM B62, DIN 1705, BS 1400 LG2)Composition: 88% Copper, 12% Tin with Aluminum additivesThread Standard: NPT (National Pipe Thread)Finish: Natural bronze with protective coatingFasteners: Compatible with #8 stainless steel screwsApplications & UsesBronze Scoop Thru Hull fittings are engineered for demanding marine applications where reliable water intake and debris protection are critical:Engine Cooling SystemsRaw water intake for inboard gasoline and diesel engine cooling circuitsAir ConditioningSeawater intake for marine AC cooling systems and heat exchangersBait Tank SystemsLive well circulation and aeration system water supplyWashdown SystemsDeck wash and anchor washdown pump water intakeBilge Pump IntakeEmergency and automatic bilge pump priming systemsFire SuppressionEmergency fire pump raw water intake systemsMaterial ComparisonUnderstanding the advantages of bronze over other common thru-hull materials:Bronze (Recommended)Advantages: • Superior corrosion resistance • Excellent strength-to-weight ratio • Time-tested marine reliability • Compatible with most metalsStainless SteelConsiderations: • Higher cost • Prone to crevice corrosion • Requires oxygen for protection • Limited marine applicationsPlastic/MarelonLimitations: • Lower strength under stress • UV degradation concerns • Temperature limitations • Conservative marine acceptanceInstallation GuidelinesCritical Safety NoticeInstallation of below-waterline fittings requires vessel hauling and should only be performed by qualified marine technicians. Improper installation can result in catastrophic flooding and vessel loss.Pre-Installation PlanningSurvey installation location, verify hull thickness, check for internal obstructions, and ensure adequate access for seacock installation. Plan the complete water system routing before cutting.Hull PreparationFor fiberglass hulls, drill pilot hole and apply neat epoxy around the interior to seal laminate. For cored hulls, remove core material and fill with solid fiberglass before final drilling.Hole CuttingUse appropriate hole saw size for thread diameter plus clearance. Cut slowly to prevent gelcoat cracking. Test fit the thru-hull before proceeding.Sealant ApplicationApply marine-grade polysulfide or polyurethane sealant to both hull surfaces and fitting threads. Avoid silicone sealants which prevent proper adhesion.Fitting InstallationInsert thru-hull from exterior, apply backing plate if required, and tighten jam nut gradually and evenly. Torque to manufacturer specifications.System ConnectionInstall appropriate seacock, connect to water system with proper marine hose and clamps. Test system thoroughly before launching.Maintenance & ServiceRegular Inspection ScheduleMonthly: Visual inspection of strainer for debris accumulation and cleaning as neededQuarterly: Check seacock operation and lubricate if requiredSemi-Annually: Inspect sealant integrity and fastener conditionAnnually: Complete haul-out inspection for corrosion, electrolysis, and structural integrityCleaning ProceduresRegular cleaning maintains optimal flow rates and prevents system contamination:Remove accumulated marine growth and debris from strainer slotsFlush with fresh water to remove salt depositsUse soft bristle brush for stubborn depositsAvoid harsh chemicals that may damage bronze finishInspect for physical damage during cleaningElectrolysis PreventionMonitor for signs of galvanic corrosion, particularly around dissimilar metals. Proper electrical bonding and zinc anode maintenance are essential for long-term durability. Consult marine electrical professionals for bonding system design.Performance CharacteristicsFlow DynamicsThe scooped design provides superior flow characteristics compared to standard thru-hulls:Reduced Turbulence: Streamlined water entry minimizes cavitation and air entrainmentSelf-Cleaning Action: Forward motion helps clear debris from strainer openingsPressure Recovery: Scoop design converts forward motion into positive intake pressureAir Lock Prevention: Eliminates dead air spaces that can form in conventional intakesSizing GuidelinesProper sizing ensures adequate flow while preventing excessive stress on connected systems:1/2″ & 3/4″: Small engines up to 50HP, bait tanks, washdown systems1″: Medium engines 50-100HP, larger bait tanks, AC systems1-1/4″: Larger engines 100-200HP, multiple system applications2″: High-flow applications, large engines over 200HP, fire pumpsTroubleshooting Common IssuesProblemProbable CauseSolutionReduced flow rateStrainer clogged with debrisClean strainer openings, check for marine growthAir in systemLoose connections or damaged sealsInspect and tighten connections, replace sealsLeakage at hullDeteriorated sealant or loose fittingRe-seal with marine sealant, check fastener torqueCorrosion visibleGalvanic action or stray currentCheck electrical bonding, inspect zinc anodesVibration or noiseLoose mounting or cavitationSecure mounting, check for proper flow ratesCompliance & StandardsOur Bronze Scoop Thru Hull fittings meet will comply to the following industry standards:ABYC Standards: American Boat & Yacht Council requirements for through-hull fittingsISO 9093-1: International standard for small craft seacocks and through-hull fittingsASTM B62: Standard specification for composition bronze or ounce metal castingsUL Marine: Underwriters Laboratories marine equipment certificationCE Marking: European conformity certification for marine equipmentWarranty & LiabilityProfessional installation and regular maintenance are required to maintain warranty coverage. Consult local marine authorities regarding installation regulations and requirements for your vessel classification and operating waters. Request a Quote – Bronze Scoop Thru Hull FittingsBrass & Copper Parts supplies Bronze Scoop Thru Hull Fittings to engineering and industrial customers worldwide. Share your specifications, drawings, alloy requirements, quantities, and delivery destination for a prompt, competitive quotation.�� Email us at: [email protected] — attach your drawings, RFQ document, or specifications for a detailed technical and commercial response�� WhatsApp/Call: 91-22-43449300 — speak directly with our technical sales team for immediate assistance on materials, tolerances, lead times, and pricing�� Visit our manufacturing facility in Jamnagar, Gujarat, India — schedule a factory audit and witness our production, inspection, and quality systems first-hand�� Request a sample order — evaluate our quality with a small trial shipment before committing to full production volumesISO 9001 certified manufacturer and exporter with 30 years of experience. We supply to clients in the UK, Germany, USA, Australia, UAE, and 30 other countries with full material certification, dimensional inspection reports, and compliance documentation. Product Tags: Bronze fittings Bronze marine fittings Bronze parts Bronze Scoop Thru Hull fittings Bronze Thru Hull fittings