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HDPE BUTTWELDING FITTINGS
HDPE Butt Fusion Injection Molded Fittings – PE100
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HDPE butt fusion injection molded fittings are manufactured from PE100 high-density polyethylene using precision injection molding technology to ensure uniform wall thickness, dimensional accuracy, and consistent material properties. These fittings are designed for pressure-rated pipeline systems and are widely used in water supply, sewage, firefighting, irrigation, and industrial piping networks.
Injection molded HDPE fittings are available in sizes ranging from 20 mm to 315 mm, commonly in SDR 11 and SDR 17, and include standard configurations such as tees, tee reducers, reducers, 90-degree elbows, end caps, and stub ends. Male and female HDPE-to-metal transition couplings are also supplied for reliable connections to valves, pumps, and metallic piping systems.
When joined using butt fusion welding, injection molded fittings form a homogeneous, leak-free pipeline system with joint strength equal to or greater than the pipe itself. These fittings are preferred for distribution networks and medium-diameter pipelines where precision, repeatability, and long-term performance are critical.
HDPE Butt Fusion Fabricated Fittings – PE100
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HDPE butt fusion fabricated fittings are engineered for large-diameter and customized pipeline applications where injection molded fittings are not feasible. Manufactured from PE100 HDPE pipes and segments, fabricated fittings are produced using controlled butt fusion welding to achieve structural integrity, pressure compatibility, and dimensional flexibility.
Fabricated HDPE fittings are typically supplied in sizes 315 mm and above, across a wide range of SDR classes including SDR 7, 9, 11, 17, 26, and 33, making them suitable for high-flow transmission lines, trunk mains, and industrial pipelines. Common fabricated fittings include tees, tee reducers, 45-degree and 90-degree elbows, reducers, stub ends, end caps, and cross tees, manufactured to project-specific drawings and site requirements.
These fittings are extensively used in water transmission, desalination, irrigation, sewage, district cooling, and industrial utility systems, where custom geometry, high pressure ratings, and large diameters are required. Properly fabricated and welded HDPE fittings ensure smooth internal flow, minimal head loss, and long-term resistance to corrosion and fatigue.
Injection Molded vs Fabricated HDPE Butt Fusion Fittings
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Injection molded fittings are ideal for standard sizes, tight tolerances, and mass applications, while fabricated fittings provide design flexibility and scalability for large-diameter and complex pipeline layouts. Both types, when produced from PE100 material and joined using approved butt fusion procedures, deliver leak-free, fully welded piping systems with exceptional durability and service life exceeding 50 years under normal operating conditions.
Standards & Compliance – HDPE Butt Fusion Fittings (PE100)
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All HDPE butt fusion injection molded and fabricated fittings are manufactured from PE100 high-density polyethylene and comply with internationally recognized standards governing material quality, dimensions, pressure ratings, and joint integrity. HDPE pipes and fittings are produced in accordance with ISO 4427 and EN 12201 for water supply and pressure piping systems, ensuring consistent performance, durability, and long-term reliability. Applicable testing and dimensional requirements align with ASTM F714, ASTM D3350, and ASTM D3261, covering material classification, pipe performance, and butt fusion joint qualification. Butt fusion welding procedures follow approved fusion parameters to achieve fully homogeneous joints with strength equal to or exceeding the parent pipe, ensuring compliance with project specifications, regulatory requirements, and lifecycle performance expectations.
Product Range & Configurations
Servarabia supplies a complete range of HDPE butt weld fittings designed for pressure-rated pipeline systems requiring strong, leak-free joints.
Available fitting types include:
• 90° and 45° elbows
• Equal tees and reducing tees
• Equal and reducing reducers
• End caps
• Stub ends
• Customized fabricated fittings (on request)
Fittings are suitable for direct butt fusion with HDPE pipes of matching material grade and SDR.
Applications
HDPE butt weld fittings are widely used in:
• Potable and raw water transmission systems
• Firefighting and fire water networks
• Irrigation and agricultural pipelines
• Sewerage and drainage systems
• Industrial process piping
• District cooling and utility infrastructure
Their welded joints provide a continuous, leak-free pipeline system suitable for demanding environments.
Size Range & Technical Specifications
HDPE butt weld fittings are available across a wide range of diameters and pressure classes to suit utility and industrial applications.
Typical specifications include:
• Diameter range: From small diameters to large-diameter pipelines (project-specific availability)
• SDR classes: SDR 11, SDR 13.6, SDR 17, SDR 21 (as applicable)
• Pressure ratings: PN6, PN10, PN16 (depending on SDR and standard)
• Material grades: PE100 / PE80 (as specified)
All fittings are designed to maintain uniform wall thickness and compatibility with standard butt fusion welding machines.
Packaging, Handling & Supply
Fittings are supplied with appropriate packaging to prevent deformation and surface damage during transportation and storage.
Servarabia supports:
• Project-based quantities
• Bulk supply for large pipeline networks
• Coordination with pipe supply and delivery schedules
Custom fabrication and special configurations can be arranged based on project drawings and specifications.
Key Features & Performance Benefits
• Homogeneous joints when butt fused with HDPE pipes
• Excellent resistance to internal pressure and external loads
• High chemical resistance and corrosion-free performance
• Smooth internal bore minimizing friction losses
• Long service life with minimal maintenance
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These properties make HDPE butt weld fittings ideal for buried and exposed pipeline installations.
Ordering & RFQ Support
To ensure correct supply, RFQs should include:
• Required fitting type and size
• SDR / pressure class
• Quantity
• Project application and standard (if specified)
Our team supports BOQ-based quotations and assists in aligning fitting selection with project requirements.