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GRP Pipes & Solutions - MGH YAPI
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GRP Pipes & Solutions

Glass Reinforced Plastic (GRP) piping systems designed for superior corrosion resistance, exceptional durability, and high-performance flow in large-scale infrastructure projects.

GRP Fittings

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Application Sector / System Type Typical GRP Pipe Types & Key Features Key Applicable Standards & Specifications
Water Transmission & Distribution

(Potable water mains, raw water, irrigation)

Centrifugally Cast (CC) or Filament Wound (FW), High-Stiffness Classes, Food-Grade Resin Liner (typically isophthalic or vinyl ester).

Key: Corrosion-free, low hydraulic roughness (Hazen-Williams C=150), lightweight.

Product/Design:

  • ISO 10639 (Pressure & non-pressure water pipes)
  • EN 1796 (Plastics piping systems for water)
  • AWWA C950 (Fiberglass Pressure Pipe - USA)

Health: NSF/ANSI 61, WRAS, KIWA

Sewer & Drainage (Gravity & Pressure)

(Wastewater force mains, gravity sewers, stormwater)

High-Stiffness (SN 2500 to SN 10000 N/m²), Abrasion-resistant liner, Corrosion-resistant resin systems (vinyl ester/bisphenol).

Key: Excellent corrosion resistance to H₂S and chemicals, smooth bore.

Product/Design:

  • ISO 10467 (Pipes for drainage/sewerage)
  • EN 14364 (Plastics piping systems for drainage)
  • ASTM D3262 (Fiberglass Sewer Pipe)
  • ASTM D3754 (Fiberglass Pressure Pipe)
Oil & Gas (Onshore & Offshore)

(Produced water, injection lines, firewater, low-pressure flowlines)

High-Pressure Filament Wound pipes, API 15HR certified, Fire-Retardant resins, Conductive layers for grounding.

Key: Internal/external corrosion resistance, subsea capability.

Product/Design:

  • API Spec 15HR (High Pressure Fiberglass Line Pipe)
  • API Spec 15LR (Low Pressure Fiberglass Line Pipe)
  • ISO 14692 (Petroleum & natural gas industries - GRP piping)
  • NORSOK M-620 (Piping materials selection - includes GRP)
Chemical & Industrial Process

(Chemical effluent, brine lines, acid waste, FGD systems)

Corrosion Barrier construction (C-glass veil + resin-rich liner), Special resin grades (vinyl ester, furan, epoxy), High temperature rating.

Key: Custom engineering for specific chemical/temperature service.

Product/Design:

  • ISO 14692 (Primary standard)
  • ASTM D2996 (Filament-Wound Pipes)
  • ASTM D2997 (Centrifugally Cast Pipes)
  • DIN 16869 (GRP pipes & fittings for chemical industry)
Power Plant & Desalination

(Cooling water intake/outfall, seawater lines, demineralized water)

Large Diameter (up to 4000mm), Marine-Grade resins, Abrasion-resistant liners for sandy water, Dual laminate options.

Key: Superior seawater corrosion resistance vs. steel, long service life.

Product/Design:

  • ISO 14692
  • AWWA C950
  • ASTM D3517 (Fiberglass Pressure Pipe)
  • Plant-Specific specifications
Marine & Offshore

(Seawater cooling, ballast, firewater on platforms, shipbuilding)

Lloyd's/DNV approved, Fire-Rated systems, Impact-resistant, Conductive layers for static dissipation.

Key: Lightweight advantage offshore, non-conductive.

Product/Design:

  • ISO 14692
  • DNVGL-RP-201 (Composite Components)
  • Lloyd's Register Rules
  • ASTM F1173 (FRP Marine Piping)
Mining & Slurry Transport

(Tailings lines, process water, aggressive mine drainage)

Heavy-Duty Abrasion-Resistant liners (ceramic-filled, polyurethane), Extra wall thickness, High stiffness.

Key: Superior abrasion-corrosion resistance vs. steel in slurry service.

Product/Design:

  • ISO 14692 (with special liners)
  • Mining-Specific client specifications
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