Rapidrop 1NR Standard Reducing Flexible Coupling 6″ x 4″ (150 x 100 mm)

SKU: Rapidrop-0100
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The Rapidrop 1NR Standard Reducing Flexible Coupling (6″ x 4″ / 150 x 100 mm) is a heavy-duty mechanical pipe joint designed to connect two pipes of different diameters while accommodating minor system deflection, contraction, and expansion.

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Description

The Rapidrop 1NR Standard Reducing Flexible Coupling (6″ x 4″ / 150 ? 100 mm) is a premium mechanical joint designed to transition between a 6-inch (150 mm) pipe and a 4-inch (100 mm) pipe without requiring a separate concentric reducer fitting. Constructed from high-strength ductile iron with a corrosion-resistant red finish, this flexible coupling features an engineered, contoured EPDM gasket that ensures a completely leak-tight seal across both pipe diameters. This component allows for intentional controlled linear and angular movement in the pipeline to alleviate structural stress. It safely supports a maximum working pressure of up to 300 PSI (20.7 bar) and is UL Listed and FM Approved, ensuring top-tier safety and durability in demanding fire protection and industrial piping networks.

Features

  • Direct Size Reduction: Combines a pipe size transition and a secure joint into a single component, eliminating the need for a separate reducing fitting.
  • Flexible Piping Integration: Designed to absorb thermal expansion, contraction, and seismic movement while minimizing vibration transfer through the line.
  • Leak-Proof Performance: Outfitted with a specialized EPDM gasket engineered to maintain a durable, long-term seal on both pipe sizes.
  • High-Strength Build: Formed from heavy-duty ductile iron to withstand demanding physical impacts and high operational pressures.
  • Fast and Cost-Effective Assembly: Speeds up line construction and cuts down on-site labor and material costs compared to traditional welding or threading.

Specifications

  • Brand: Rapidrop
  • Model: 1NR Standard Reducing Flexible Coupling
  • Size: 6″ × 4″ (150 × 100 mm)
  • Maximum Working Pressure: Up to 300 PSI (20.7 bar)
  • Working Temperature: -34°C to 110°C (-30°F to 230°F)
  • Material: Ductile Iron (ASTM A536)
  • Gasket Type: EPDM
  • Hardware: Mild Steel Zinc-Plated Bolts and Nuts
  • Approvals: UL Listed, FM Approved, VdS Approved

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