Thermoplastic Pipe & Fittings
A complete solid-plastic piping system — pipes, bends, elbows, tees, couplings, reducers, flanges, and stub ends — moulded from PP, PPH, PVDF, and ISO.PP. Socket-weld, butt-weld, threaded, and flanged connections for seamless integration with our thermoplastic valves.
Complete Solid-Plastic Piping Systems
UNP’s thermoplastic pipe & fittings range completes our solid-plastic offering — straight pipe, bends, elbows, equal tees, couplings, concentric reducers, stub ends, and flanges. Every component is moulded from the same engineering plastics as our thermoplastic valves, so material continuity is guaranteed across your entire pipeline.
Available with socket-weld, butt-weld, threaded, and flanged end connections — choose what fits your fabrication method, on-site tools, and accessibility for future maintenance.
Lightweight, corrosion-free, and cost-effective compared to lined-metal alternatives, these fittings are the workhorses of water treatment, plating, agriculture, and effluent-management pipelines worldwide.
- Single-source pipeline system
valves + pipe + fittings from one supplier - Material continuity end-to-end
matched body materials across components - Multiple connection types
socket weld, butt weld, threaded, flanged - Lightweight construction
fast on-site handling and installation - 100% corrosion-free
no painting or external coating required - In-house manufactured
consistent quality, reliable supply
Engineered & Manufactured to International Standards
Since 1988
Manufacturing Heritage
45+
Countries Served
ISO 9001
Certified Quality
In-House
Production
8 Pipe & Fitting Types in This Category
Every fitting profile your thermoplastic pipeline needs, in the same material range as our valves.
Thermoplastic Pipes
Straight thermoplastic pipe sections in standard schedules, plain or socket ends.
Thermoplastic Concentric Reducer
In-line diameter reduction with concentric axis — for symmetric pipe runs.
Thermoplastic Couplings
Pipe-to-pipe connectors for socket-weld or butt-weld assembly.
Thermoplastic Bends
Long-radius bends for smooth flow transitions through directional changes.
Thermoplastic Elbow
Short-radius 90deg and 45deg elbows with socket-weld ends.
Thermoplastic Stub Ends
Stub ends with short or long neck for backing-flange installations.
Thermoplastic Flanges
Standard ANSI / DIN pattern flanges for bolted-joint connections.
Thermoplastic Equal Tee
Equal-leg tee fittings for branched pipeline networks.
Choose the Right Plastic for Your Media
All fittings available in the same four engineering plastics as our thermoplastic valves — guaranteed material continuity across your pipeline.
General-purpose, low-cost option for mildly corrosive media at moderate temperatures.
Higher mechanical strength than PP — better for pressure service.
Excellent chemical resistance and high mechanical strength.
Improved temperature and chemical resistance vs standard PP.
Multiple Joining Methods Available
Pick the connection style that suits your assembly method, on-site tools, and future maintenance access.
Socket Weld
Heat-fused socket joints for permanent, leak-tight assemblies.
Butt Weld
End-to-end heated fusion for in-line pipe sections.
Threaded
Removable threaded fittings for serviceable connections.
Flanged
Bolted flange joints for easy disassembly and inspection.
Where UNP Thermoplastic Pipe & Fittings Are Used
Water Treatment
Chemical Dosing
Aquaculture
Agriculture
Plating & Surface
Effluent Treatment
Talk to a UNP Engineer
Share your line diagram, media, and connection preferences — we’ll spec the right pipe, fittings, and material in 24 hours.