The Essential Component for Resilient Piping
In any fluid system involving pumps or compressors, vibration is inevitable. If left unmanaged, these micro-movements can lead to pipe fatigue and costly leaks. The Single Sphere Rubber Expansion Joint is the primary line of defense, acting as a flexible shock absorber that protects expensive valves and equipment.
1. Material Matters: The B-NAI Rubber Formula
A rubber joint is only as good as its polymer. We don’t use recycled rubber; we use high-purity raw materials:
EPDM (Ethylene Propylene Diene Monomer): Perfect for water and steam, offering excellent resistance to ozone, weathering, and heat.
NBR (Nitrile): The go-to choice for oil, fuel, and hydrocarbon applications, providing superior oil resistance.
2. Engineering the “Burst Strength”
What happens inside the rubber is what counts. Our single sphere joints are reinforced with multi-layer high-tensile synthetic fibers (Nylon cord).
Precision Molding: Each joint is vulcanized at precise temperatures and pressures, ensuring the rubber and fabric reinforcement become a single, inseparable unit capable of handling PN10, PN16, or even PN25 ratings.
3. Flange Standards and Coating
B-NAI supports all major global standards, including ANSI, DIN, BS, and JIS. Our flanges are cast from ductile iron or carbon steel and undergo a rigorous surface treatment—whether it’s zinc plating or epoxy coating—to prevent corrosion in harsh environments.
