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BS1387 galvanized pipe fittings | British Standard Compliance

BS1387 galvanized pipe fittings | British Standard Compliance

$420.00 SGD
$420.00 SGD
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BS1387 Galvanized Pipe Fittings | British Standard Compliance

Product Specifications

Parameter Details
Zinc Coating 275–350g/m² (Z275–Z350), compliant with BS1387-1985 and ISO 1461
Diameter Range 1/2" to 8" (15–219mm) – seamless fixing galvanized pipe compatibility for plumbing and structural applications
Wall Thickness 2.0–12.7mm (medium/heavy class), suitable for water, gas, and HVAC systems
Standards BS1387, EN 10255, ASTM A53, ISO 9001 certified
Surface Finish Hot-dip galvanized with zero spangle, chromated (Cr3+) for enhanced corrosion resistance
Hardness 150–250 HB (Brinell hardness), ensuring durability under mechanical stress
Thread Type BS21 (tapered) or ISO7/1 (parallel), compatible with NPT and BSPT fittings
Temperature Tolerance -30°C to 120°C, ideal for indoor and outdoor infrastructure

Technical Properties

Tensile & Bend Strength

  • Tensile Strength: Ranges from 350–550 MPa (BS1387 Class B/C), exceeding ASTM A53 Grade B requirements for high-pressure fluid transport.
  • Bend Strength: Achieves 4T bend radius (4x pipe diameter) without cracking, validated through cold-forming tests for applications like scaffolding and drainage systems.

Weight Calculation

Weight (kg/m) = (OD – WT) × WT × 0.02466
Example: For a 4" OD pipe with 6mm wall thickness:
(114.3 – 6) × 6 × 0.02466 = 16.2 kg/m. Custom calculators provided for bulk orders.

Identification Marking

  • Laser-etched labels include:
    • Grade (e.g., Q235, S275JR).
    • Zinc coating thickness (Z275–Z350).
    • Compliance marks (BS1387, ISO 9001).

Why Stainless Steel Corrodes?

While BS1387 galvanized pipe fittings resist rust via sacrificial zinc protection, stainless steel may corrode due to:

  1. Chloride Exposure: Coastal environments or de-icing salts induce pitting, especially in 304/316 grades.
  2. Mechanical Damage: Scratches or improper welding expose the base metal to oxidation.
  3. Galvanic Corrosion: Contact with dissimilar metals (e.g., copper) accelerates degradation.
  4. High-Temperature Stress: Prolonged exposure to >400°C destabilizes passive oxide layers.

Manufacturing Process

Stage Description
Material Prep Low-carbon steel (Q235B) pickled to remove oxides, ensuring optimal zinc adhesion.
Galvanizing Dipped in molten zinc (445–460°C), forming Fe-Zn alloy layers (≥85µm coating).
Threading CNC-machined threads (BS21/ISO7/1) for leak-proof fixing galvanized pipe connections.
QC Inspection Salt-spray tests (1,500+ hours), 3D thickness scans, and hydrostatic pressure checks (≥25 MPa).

Maintenance & Cost Considerations

  • Cost to replace galvanized pipes in house:
    • Average Cost: 15,000 (varies with home size, pipe accessibility, and material choice).
    • Factors: Labor (200/hour), wall/floor repairs, and material upgrades (e.g., switching to PEX or copper).
  • Can you paint galvanized pipe:
    • Steps: Clean with TSP solution, apply primer (e.g., Rust-Oleum 3202), and topcoat with acrylic paint.
    • Tip: Avoid oil-based paints without priming to prevent peeling.

Why Choose Our Galvanized Pipe Fittings?

  1. BS1387 Compliance: Rigorous adherence to British standards for seamless integration into UK/EU projects.
  2. Durability: Triple-layer zinc coating resists UV, salt spray, and humidity for 50+ years.
  3. Custom Solutions: Tailored threading, lengths, and packaging (steel pallets or bulk).
  4. Global Certification: ISO 9001, SGS, and Lloyd’s Register audited for quality assurance.

Keywords Integration:

  • Explore best practices for fixing galvanized pipe leaks using epoxy putty or compression couplings.
  • Learn how to minimize cost to replace galvanized pipes in house through proactive maintenance.
  • Achieve aesthetic flexibility: can you paint galvanized pipe? Yes—follow our step-by-step guide.

Why Our Stainless Steel Solutions Excel

Positioned at the end as requested:

  1. Superior Hygiene: 316L grades comply with NSF/EN 10312 for drinking water systems.
  2. Decades of Expertise: 30+ years in steel fabrication, serving 100+ countries with ISO 9001 certifications.
  3. Sustainability: 95% recyclable materials and chromium-free coatings align with EU Green Deal.
  4. Custom Fabrication: CAD-driven designs for precision-fit components in marine, chemical, and aerospace sectors.
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