WhatsApp Call Us Send Email
GRP Fittings - MGH YAPI
Home / Fittings & Components / GRP Fittings

GRP Fittings & Connections

Comprehensive range of high-quality GRP (Glass Reinforced Plastic) fittings designed for durability, corrosion resistance, and long service life. Meeting international standards for water, drainage, and industrial applications.

GRP Fittings

Click to enlarge image

Fitting Type / Primary Application Design Characteristics & Manufacturing Methods Key Applicable Standards & Specifications
BUTT & WRAP FITTINGS (Main Line Connections, Large Diameter Systems)
  • Design: Flat/square ends for butt-weld connection with fiberglass overlay
  • Applications: Large diameter pipelines, water transmission, sewage force mains
  • Types: Elbows (11.25°-90°), Tees, Reducers, Caps
  • Manufacturing: Hand lay-up or filament winding
Product Standards:
  • AWWA C950 (Fiberglass Pressure Pipe - includes fittings)
  • ISO 14692-3 (GRP piping - fitting dimensions)
  • ASTM D5685 (Fiberglass fittings)
Installation:
  • ASTM D4161 (Fiberglass pipe joint design)
BELL & SPIGOT FITTINGS (Rubber Gasket Joint Systems)
  • Design: Tapered spigot with rubber ring groove
  • Applications: Water distribution, gravity sewer systems
  • Types: Bends, Tees, Reducers, Couplings
  • Joint Type: Push-together with rubber seal
Dimensions:
  • ISO 10465-2 (Underground GRP pipes - fittings)
  • EN 1796 (GRP pipes for water - fittings)
  • ASTM D3262 (Fiberglass sewer pipe - includes fittings)
Seals:
  • ASTM F477 (Elastomeric seals)
FLANGE ADAPTERS & FLANGES (GRP to Metal Transitions, Equipment Connections)
  • Design: GRP flange + backing ring, Molded or fabricated
  • Applications: Pump connections, valve installations, tank nozzles
  • Types: Slip-on flange, Blind flange, Adapter flange
  • Pressure Classes: PN6 to PN25
Dimensions:
  • ISO 14692-3 (Flange dimensions)
  • ASME B16.5 (For compatible bolt patterns)
  • EN 1092-2 (GRP flanges)
Gasketing:
  • EN 1514 (Gasket dimensions)
MECHANICAL COUPLINGS (Repairs, Transitions, No-Weld Connections)
  • Design: Stainless steel bands/bolts with EPDM seals
  • Applications: Emergency repairs, connections to existing systems
  • Types: Repair Couplings, Reducer Couplings, Transition Couplings
  • Installation: Bolt-tightened, no curing required
Standards:
  • ISO 9623 (Mechanical joints for plastics)
  • ASTM D3839 (Fiberglass couplings)
  • AWWA C219 (Bolted sleeve couplings)
CUSTOM FABRICATED FITTINGS (Special Applications, Complex Geometries)
  • Design: Custom designed, Fabricated from GRP materials
  • Applications: Manifolds, special angles, equipment connections
  • Types: Y-branches, Sweep elbows, Special reducers, Offsets
  • Manufacturing: Hand lay-up or CNC cutting/wrapping
Fabrication Standards:
  • ISO 14692-3 (Allows fabrication)
  • ASTM D5685 (Includes fabricated fittings)
Design:
  • ASME RTP-1 (Reinforced thermoset equipment)
TAPPING TEES & SADDLES (Branch Connections Without Cutting Main)
  • Design: Split-sleeve design, Hot tap capability
  • Applications: Adding service connections, pressure mains
  • Types: Full-encirclement saddles, Tapping tees, Outlet fittings
  • Installation: Bolted or bonded
Product Standards:
  • ISO 14692-3
  • AWWA C950
  • Manufacturer Specifications (often proprietary)
REDUCING FITTINGS (Pipe Size Transitions)
  • Design: Concentric/Eccentric designs, Smooth bore transitions
  • Applications: Pump suction/discharge, flow control points
  • Types: Reducers, Increasers, Swages
  • Flow Considerations: Minimize turbulence
Dimensions:
  • ISO 14692-3
  • AWWA C950
Hydraulic Design:
  • AWWA M45 (Fiberglass pipe design)
EXPANSION JOINTS & COUPLINGS (Thermal Movement, Settlement Accommodation)
  • Design: Flexible bellows or slip-type, Accommodates movement
  • Applications: Bridge crossings, building penetrations, seismic zones
  • Types: Rubber expansion joints, Slip-type couplings
  • Movement Capacity: Axial, lateral, angular
Standards:
  • ISO 14692-3 (Expansion joint requirements)
  • ASTM D4167 (Fiberglass couplings)
  • EJMA Standards (Expansion joint manufacturers)
INSPECTION CHAMBERS & MANHOLES (Sewer Systems, Access Points)
  • Design: Large diameter structures, Multiple inlets/outlets
  • Applications: Sewer networks, stormwater systems, access points
  • Types: Straight-through chambers, Junction chambers, Drop manholes
  • Sizes: DN600 to DN3000+
Product Standards:
  • EN 13598-1 (Manholes and inspection chambers)
  • ASTM F1759 (Prefabricated manholes)
Structural:
  • ASTM D3681 (Chemical resistance)
SPECIAL CHEMICAL RESISTANT FITTINGS (Corrosive Services, Industrial Applications)
  • Design: Enhanced resin systems, Additional corrosion barrier
  • Applications: Chemical plants, FGD systems, acid waste lines
  • Types: Lined fittings, Double containment fittings, Vent fittings
  • Resins: Vinyl ester, furan, epoxy special formulations
Material Standards:
  • ASTM C582 (Contact molded RTP laminates)
  • ISO 14692-2 (Materials - qualification)
Testing:
  • ASTM C868 (Chemical resistance)
View