UPVC Repair Coupling for Water

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A UPVC split repair coupling with a two-piece clamp design, used for quick repair of pipe leaks. Can be installed under pressure without shutting off water or replacing pipe sections.
  • Diameter Range: 63-400mm
  • Pressure Rating: ≤1.0 MPa
  • Applicable Standards: 企业标准
  • Stock Availability: In stock
  • Sample Policy: Free sample available
  • Lead Time: 5–30 days

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UPVC Repair Coupling for Water

Key Features

  • Split clamp design: two half-shells clamp around the pipe without needing to dismantle the pipeline.
  • Hot tap repair: can be installed directly on pressurized pipes, minimizing service disruption.
  • Reliable seal: built-in high-elasticity EPDM rubber gasket conforms tightly to pipe exterior under bolt pressure.
  • Wide applicability: suitable for UPVC, PE, cast iron, cement, and other pipe materials.

Manufacturing Process

Housing injection molded from UPVC or formed from metal (ductile iron/stainless steel). Rubber gaskets manufactured via compression molding. Fasteners are galvanized carbon steel or stainless steel.

Critical Process Parameters

  • Matching accuracy between housing inner diameter and pipe outer diameter.
  • Hardness, compression set resistance, and aging resistance of rubber gaskets.
  • Correlation between bolt tightening torque and seal compression.

Raw Material Characteristics

  • Material Composition: Housing: UPVC, ductile iron (with anti-corrosion coating), or stainless steel. Gasket: EPDM. Fasteners: galvanized carbon steel or stainless steel.
  • Material Properties: High housing strength and pressure resistance. Gasket resists aging and water, with good elasticity. Fasteners are rust-proofed for use in damp environments.

Typical Applications

  • Emergency repair of sudden bursts and cracks in water supply pipelines.
  • Permanent repair of localized damage such as pinholes and corrosion perforations.
  • Pressurized leak sealing where water shutdown or pipe replacement is not feasible.
  • As a standby maintenance device for long-term pipeline system operation.

Application Scenarios

  • Emergency repair of burst municipal water mains.
  • Leak repair in building water supply pipes.
  • Online leak sealing in industrial pipelines.
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