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BSP Union Rubber Joint

BSP Union Rubber Joint: Compact Threaded Vibration Isolation
The BSP Union Rubber Joint from WODE Valve is the ideal solution for small-diameter pipelines where flanged connections are impractical. Featuring British Standard Pipe (BSP) threaded unions, this joint provides a quick, secure, and leak-proof connection for pipes ranging from DN15 to DN80.
Engineered with a high-flexibility rubber bellows and a three-piece union design, it excels at isolating mechanical vibration, reducing noise, and compensating for minor pipeline misalignments. Its compact structure is perfect for HVAC units, fan coils, and domestic water pumps where space is at a premium.


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BSP Union Rubber Joint Union Type Rubber Joint Threaded Rubber Joint BSP/NPT Union Joint Flexible Union Joint Union Rubber Joint Small Size Rubber Joint EPDM Union Joint Union Joint Pipeline Union Joint

Product Description

Key High-Performance Features

· Convenient Union Connection: The three-piece union design allows for installation and removal without rotating the entire pipeline, significantly reducing labor time.

· Efficient Sound & Vibration Dampening: The thick elastomeric body breaks the transmission of acoustic noise and mechanical pulses, protecting sensitive equipment.

· All-Directional Movement: Capable of absorbing axial compression, extension, lateral deflection, and angular movement in a single compact unit.

· Corrosion-Resistant Fittings: Union ends are typically supplied in galvanized ductile iron, with stainless steel (SS304/316) or bronze options available for aggressive environments.

· Eliminates Electrolysis: The rubber body acts as a dielectric insulator, preventing metal-to-metal contact and stopping electrolytic corrosion.

· High Pressure/Temperature Tolerance: Standard units are rated for up to PN16 (16 Bar) and can withstand temperatures up to 115°C.

Detailed Technical Specifications

Feature	Engineering Standards
Size Range	DN15 – DN80 (1/2" to 3")
Pressure Rating	PN10 / PN16
Thread Standard	BSP (British Standard Pipe) / BSPT / ISO 228-1
Rubber Material	EPDM (Standard), NBR (Oil), Neoprene, Chlorobutyl
Union Material	Galvanized Malleable Iron, SS304, SS316, Bronze
Movement Capacity	Axial: +6/-22mm; Lateral: +/-22mm; Angular: 20° - 45°
Applicable Media	Water, Warm Water, Seawater, Air, Weak Acids

Why Partner with WODE Valve?

WODE Valve produces threaded joints that meet rigorous international quality benchmarks:

· Precision Threading: Our unions are machined to exact BSP/BSPT tolerances, ensuring a perfect seal without the risk of cross-threading.

· Vulcanized Integrity: We use high-pressure molding to ensure the rubber bellows and reinforcement layers are perfectly bonded.

· 100% Leak Testing: Every joint is hydrostatically tested to ensure the union-to-rubber interface is completely airtight and leak-free.

· Customized Mesh Reinforcement: For high-pressure branch lines, we can incorporate extra nylon tire cord layers to prevent deformation under surge conditions.

Primary Application Sectors

· HVAC & Air Conditioning: Connection to fan coil units and chillers to prevent structural noise transmission.

· Domestic Water Systems: Small pump stations, boiler feed lines, and residential plumbing.

· Marine Utility: Fuel oil and cooling water lines in compact shipboard engine rooms.

· Industrial Cooling: Process water loops for plastic injection or welding machinery.

Recommended Industrial Options

For compact systems requiring reliable flexibility, consider these specialized technical configurations:

· The Standard HVAC Utility Choice: An EPDM Rubber Bellows with Galvanized Malleable Iron Unions. This is the most widely used configuration for fan coil units and domestic water heaters, offering excellent durability and vibration absorption at a cost-effective price point.

· The Petrochemical & Oil Specialist: Featuring an NBR (Nitrile) Inner Tube. This setup is essential for small-diameter fuel lines or lubrication systems, as it prevents the rubber from swelling or degrading when exposed to petroleum-based fluids.

· The High-Purity & Marine Model: Constructed with Stainless Steel (SS304/316) Unions. Designed for pharmaceutical water systems, food processing, or marine environments where galvanized iron would suffer from external corrosion or contaminate the media.

· The Potable Water Safety Configuration: Utilizing WRAS-approved EPDM rubber and Lead-Free Bronze Unions. This is the premium choice for drinking water distribution, ensuring zero contamination and compliance with international health standards.

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