Rubber Expansion Joint / Fitting Female & Male
Primary Application
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Flexible Hose Fabrication: Used as permanent end-terminations crimped or swaged onto flexible industrial, chemical, and hydraulic hoses.
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Process Line Integration: Installed on mobile equipment loops, pump connections, and utility lines to facilitate clean, repeatable machine hookups.
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Chemical & Fluid Utilities: Broadly used across chemical processing plants, water treatment facilities, and food and beverage utility networks.
Structure & Specifications
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Configuration Options:
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Male Fitting: Rigid external threaded end for direct connection into stationary manifolds, valves, or female ports.
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Female NJ (Nut Joint): Swivel-nut design that allows the operator to tighten the connection onto a male thread without rotating the entire hose assembly.
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Female NU (Nut Union): A specialized union-style female connection featuring an internal mechanical taper/seat to ensure a reliable, metal-to-metal backup seal.
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Material: Premium Stainless Steel (Offers excellent mechanical durability, extended wear life, and outstanding resistance to corrosion, oxidation, and aggressive process fluids).
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Class / Working Pressure: 150 PSI (Optimized for standard industrial fluid transfer, low-pressure hydraulics, and utility lines).
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Size Range: 1/2″ to 2″
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Suitable For: Direct attachment to flexible hoses (via integrated hose shanks or ferrules).
Key Features & Benefits
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Twist-Free Installation: The female swivel-nut configuration (NJ/NU) rotates independently of the hose stem. This allows operators to easily thread and tighten the connection onto rigid machinery without twisting, kinking, or stressing the flexible hose.
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Robust Stainless Steel Build: Precision-machined to resist pitting and structural degradation, ensuring long-term purity and a leak-free seal when exposed to moisture, mild wash-down chemicals, or outdoor environments.
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Optimal Flow Characteristics: Designed with a smooth internal bore that matches the inner diameter of the flexible hose, minimizing system turbulence, preventing material traps, and reducing pressure drops across the connection.


