Home » Products » Strainer & Expansion Joint » Rubber Expansion Joint » Double Sphere Rubber Joint

Double Sphere Rubber Joint

Double Sphere Rubber Joint: Enhanced Flexibility and Noise Reduction
The Double Sphere Rubber Joint from WODE Valve is an advanced version of the standard flexible connector, featuring two interconnected spheres. This specific geometry provides double the movement capacity compared to single sphere models, making it the ideal choice for systems with significant thermal expansion or extreme mechanical vibration.
By increasing the length of the arch, these joints can handle greater axial, lateral, and angular displacements. They are particularly effective in high-rise building plumbing and industrial pump stations where superior noise dampening and structural stress relief are required.


Availability:



Inquire Add to Basket

Double Sphere Rubber Joint DIN Double Sphere Rubber Joint Double Sphere Expansion Joint DIN Flexible Rubber Joint High Vibration Rubber Bellows Double Sphere Joint PN16/PN25 Rubber Joint EPDM/NBR Rubber Joint Standard Rubber Joint

Product Description

Key High-Performance Features

· Extended Movement Range: The dual-sphere design allows for significantly larger axial compression, extension, and lateral deflection, accommodating more complex piping shifts.

· Maximum Vibration Dampening: Two separate arches work in tandem to break up sound waves and mechanical pulses more effectively than a single arch.

· Non-Clogging Interior: The smooth internal bore prevents the accumulation of sediment or debris, maintaining a constant flow rate and low pressure drop.

· Reinforced Dual-Arch Body: Constructed with premium EPDM or NBR and high-tensile nylon cord, designed to maintain its shape even under high vacuum or pressure.

· Floating Flange System: Like the single sphere, the rotating flanges simplify installation by allowing easy bolt-hole alignment regardless of pipe orientation.

· Space-Saving Flexibility: Despite its increased movement capacity, the double sphere joint remains more compact and easier to install than long runs of metallic expansion loops.

Detailed Technical Specifications

Feature	Engineering Standards
Size Range	DN32 – DN1000 (1.25" to 40")
Pressure Rating	PN10 / PN16
Rubber Material	EPDM, NBR, Neoprene, Natural Rubber
Reinforcement	Nylon Cord & Braided Steel Wire
Flange Material	Carbon Steel (Galvanized), Stainless Steel 304/316
Working Temp	-15°C to 115°C
Applicable Media	Water, Warm Water, Seawater, Compressed Air, Oils
Flange Standard	ANSI B16.5, EN1092-2, JIS, BS

Why Partner with WODE Valve?

WODE Valve manufactures double sphere joints that prioritize safety and longevity for critical infrastructure:

· Vacuum Resistance Engineering: Our double sphere joints can be equipped with internal vacuum rings to prevent collapse in suction-side applications.

· Control Rod Integration: We offer optional control rod assemblies to prevent excessive stretching and protect the joint from pressure surges.

· High-Purity Rubber: We use 100% virgin rubber compounds with no recycled fillers, ensuring the joint remains flexible and crack-free for years.

· Custom Flange Solutions: We can provide specialized coatings (like Rilsan or Epoxy) on flanges for enhanced corrosion protection in harsh environments.

Primary Application Sectors

· High-Rise Plumbing: Managing the vertical expansion and contraction of long water risers.

· Heavy Industrial Pumps: Absorbing the high-frequency vibrations of large-scale centrifugal pumps.

· Cooling Water Circuits: Providing flexibility in power plant and refinery cooling loops.

· Sewage & Waste Plants: Handling misaligned pipes in treatment facilities.

· Marine Engine Cooling: Absorbing the intense vibrations of shipboard propulsion systems.

Recommended Industrial Options

For systems requiring maximum displacement and vibration control, consider these technical configurations:

· The High-Rise HVAC Specialist: An EPDM Double Sphere Joint with Galvanized Carbon Steel Flanges. This is the standard for commercial building water systems, providing the best balance of flexibility and weather resistance.

· The Oil & Fuel Line Model: Featuring an NBR (Nitrile) Liner. Essential for any pipeline carrying petroleum-based fluids to prevent the rubber arches from softening or failing.

· The Extreme Movement Solution: Equipped with Zinc-Plated Control Rods. These rods act as limiters to prevent the joint from over-extending during system pressure spikes or seismic events.

· The Marine & Brine Resistant Option: Utilizing Stainless Steel 316 Flanges. Designed for desalination plants and seawater cooling where standard galvanized flanges would quickly corrode.

Hot Tags: Double Sphere Rubber Joint, DIN Double Sphere Rubber Joint, Double Sphere Expansion Joint, DIN Flexible Rubber Joint, High Vibration Rubber Bellows, Double Sphere Joint, PN16/PN25 Rubber Joint, EPDM/NBR Rubber Joint, Standard Rubber Joint, China, Wholesale, Customized, Private label, OEM, Custom, manufacturers, factory, suppliers, free sample