Flange Couplings - Hose Couplings and Petroleum Products
Marine flange couplings are bolted connection assemblies used to connect petroleum-product transfer hoses to manifolds, loading arms, tanks, and shore facilities. They are typically supplied with integral or loose flanges selected for hose size, pressure, temperature, fluid compatibility, and applicable marine transfer standards.
ProShipWorks provides end-to-end support to source and supply Flange Couplings for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Flange Couplings |
|---|---|
| Product Category | Hose Couplings and Petroleum Products |
| Product Reference | 1137 |
| Brands / Manufacturers | Dixon, OPW, Emco Wheaton, MannTek, TODO, KLAW |
| Unit of Measure | Piece or Set |
Key Features
| Key Feature |
|---|
| 1. Bolted flange connection for petroleum and marine transfer hoses |
| 2. Available with fixed, floating, threaded, or swivel flange arrangements |
| 3. Compatible with rubber, composite, and thermoplastic transfer hoses |
| 4. Materials may include carbon steel, stainless steel, aluminum, or bronze |
| 5. Designed for hydrocarbon, fuel oil, diesel, crude oil, and chemical service |
Applications of Flange Couplings
| Application |
|---|
| 1. Ship-to-shore petroleum and fuel transfer |
| 2. Bunkering and marine refueling systems |
| 3. Cargo hose connection to manifolds, loading arms, and storage tanks |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| General marine hose flange coupling | Hose construction standard | EN 1765 | — |
| General marine hose flange coupling | Flange dimensional standard | ASME B16.5 or EN 1092-1 | — |
| General marine hose flange coupling | Typical service | Petroleum products, fuel oil, diesel, crude oil | — |
| General marine hose flange coupling | Nominal size range | Project and manufacturer dependent | — |
| General marine hose flange coupling | Pressure rating | Selected according to hose assembly and flange rating | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Relevant references may include EN 1765 for rubber petroleum hoses, ISO 1825 for rubber hoses used in oil suction and discharge service, ASME B16.5 or EN 1092-1 for flanges, and OCIMF GMPHOM 2009 for offshore tanker hose arrangements. Certification depends on the complete hose assembly and service. |
|---|---|
| Class Approval | Classification society acceptance is project- and vessel-specific. DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK may review or approve the complete hose assembly, material certificates, pressure tests, and installation rather than granting generic approval to every coupling. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify hose size, flange standard, pressure class, gasket material, bolt dimensions, flow direction, and fluid compatibility. Align flanges without forcing the hose, fit the correct gasket, tighten bolts in a cross pattern to the specified torque, and pressure-test the completed assembly before service. |
|---|---|
| Maintenance Tips | Inspect flanges, bolts, gaskets, swivel parts, hose cover, and grounding or bonding provisions before use. Check for leakage, corrosion, abrasion, deformation, and damaged threads. Retighten only according to approved procedures and replace hoses, gaskets, and seals at the manufacturer's or vessel operator's stated intervals. |
| Safety Notes | Depressurize, drain, isolate, and gas-free the line before disconnecting. Use equipment rated for the petroleum product, pressure, and temperature. Control static electricity with approved bonding and grounding arrangements, prevent ignition sources, use suitable PPE, and follow the vessel's bunkering or cargo-transfer procedures. |
Request a Quote for Flange Couplings
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- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
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- Shipping agent contact details
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