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BIS-ISI-CERTIFICATE

IS 15905: 2011

Hubless centrifugally cast (Spun) iron pipes, fittings and accessories – Spigot series

	 Hubless centrifugally cast (Spun) iron pipes, fittings and accessories – Spigot series
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1. Summary about Hubless Centrifugally Cast (Spun) Iron Pipes, Fittings and Accessories – Spigot Series

Hubless spun iron pipes in the spigot series are designed for drainage systems using mechanical couplings instead of traditional socket joints. They offer flexibility, ease of installation, and reliable performance in building plumbing systems.


2. Why BIS Certificate is Mandatory for Hubless Centrifugally Cast (Spun) Iron Pipes – Spigot Series

BIS certification is mandatory to ensure dimensional consistency, joint compatibility, and long-term durability. Poor-quality hubless pipes can result in joint failure and leakage.


3. What is BIS Certified for Hubless Centrifugally Cast (Spun) Iron Pipes – Spigot Series

BIS certification confirms compliance with Indian Standards through testing of material properties, dimensions, surface finish, and coating performance.


Tests required for Hubless Centrifugally Cast (Spun) Iron Pipes – Spigot Series

TitleMandatory/Optional
Materia

Optional

Freedom from defects

Required

Hardness

Required

Fracture

Required

Joints

Required

Free length

Required

Materials for clamping components

Optional

Visual inspection and Hammer test

Required

Crush Test on Pipe Rings

Required

Hydrostatic test

Required

Dimensions and Tolerances

Required

Other Dimensions (Pipe)

Required

Other Dimensions (Fittings)

Required

Coating test

Required

Resistance to Salt Spray

Required


4. Benefits of BIS Certification for Hubless Centrifugally Cast (Spun) Iron Pipes – Spigot Series

  • Ensures reliable jointing and system integrity
  • Mandatory for regulated plumbing installations
  • Improves installation efficiency
  • Reduces leakage and failure risk
  • Enhances acceptance in modern construction

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