Quick Coupling / Quick Coupling Part D
Primary Application
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Manifold & Valve Connections: Ideal for installation directly onto the male threads of storage tank valves, pipeline manifolds, and process equipment.
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Bulk Transfer Logistics: Widely utilized on road tank trucks, rail cars, and bulk liquid chemical loading arms.
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Refineries & Chemical Plants: Excellent for high-vibration applications or lines carrying volatile petroleum products, solvents, and industrial chemicals.
Structure & Specifications
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Coupler Type: Part D (Female Coupler with Female Thread)
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Body Material Options: Available in three heavy-duty materials to match system chemistry:
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Stainless Steel: Maximum structural integrity and corrosion resistance for aggressive chemicals, acids, caustics, and sanitary media.
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Aluminum: Lightweight, durable, and highly economical; ideal for fuels, lubricants, and water lines.
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Polypropylene: Corrosion-free and cost-effective; optimized for agricultural fertilizers, liquid chemicals, and mild acids.
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Locking Arms: Patented Twin-Kam™ arms (Features a unique dual-cam profile that provides a secondary detent lock to prevent the arms from unlatching if bumped or vibration occurs).
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Pull Mechanism: Spring-Ring™ finger rings (Designed to stay low-profile and open automatically for quick, hassle-free access with heavy safety gloves).
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Thread Options: Available in standard BSP or NPT internal threads for universal compatibility with regional piping configurations.
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Standard Gasket: Buna-N (Premium fuel and oil-resistant elastomeric compound; alternative materials can be specified for aggressive chemicals).
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Size Range: 1″ to 4″
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Brand: OPW (United States)
Key Features & Benefits
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Twin-Kam™ Arm Security: Unlike standard camlocks that can open under pressure spikes or physical impacts, the Twin-Kam™ design incorporates a patented detent that locks the arm tightly in place unless manually released.
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Spring-Ring™ System: Specially engineered finger rings resist distortion and stay positioned for easy access, eliminating the frustration of rings getting trapped flat against the body under the cam arms.
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Universal Interchangeability: Fully compliant with standard military and international specifications (A-A-59326 / MIL-C-27487), ensuring dependable compatibility with all standard matching male adaptors.
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Precision Sealing: Heavy-duty internal compression ensures a leak-free interface against the Buna-N gasket, mitigating volatile organic compound (VOC) emissions and environmental spills.



