PP Compression Fittings
Polypropylene (PP)
Compression Fittings
Engineered for quick, tool-free installation and 100% leak-proof performance. Direct factory supply of high-pressure PP compression couplers, tees, elbows, and adapters for HDPE piping systems.
High-Performance Polypropylene Compression Fittings
Unitech Polypropylene (PP) compression fittings are designed to deliver instant, leak-proof mechanical jointing for High-Density Polyethylene (HDPE) piping systems. Built to withstand working pressures up to PN16 (16 bar), these fittings require no welding machinery, making them the ideal solution for fast, reliable field installation.
Tool-Free Quick Assembly
Simple push-fit and mechanical nut tightening allows rapid installation without specialized heat-fusion equipment.
Superior Hydraulic Sealing
Features high-grade NBR O-rings and acetal clinch rings to maintain continuous tight seals under dynamic pressure surges.
UV & Chemical Resistant
Formulated with virgin polypropylene and UV stabilizers to resist outdoor weathering, aggressive soils, and agricultural chemicals.
Product Specifications & Pressure Ratings
Manufactured in compliance with ISO 14236 and DIN 8076 standards. Engineered for seamless mechanical jointing across high-pressure PE pipe applications.
Working Pressure
PN16 (16 bar) for Ø 20mm–63mm
PN10 (10 bar) for Ø 75mm–110mm
Body & Nut Material
100% Virgin Polypropylene (PP-B) with UV Stabilizer Compound
Gasket & Ring Spec
Potable Grade NBR O-Ring Seal with High-Tensile Acetal Clinch Ring
Operating Temp
-10°C to +45°C (Suitable for direct outdoor & underground installation)
| Outer Dia (mm) | Pressure Rating | Standard SDR | Joint Type | Primary Application |
|---|---|---|---|---|
| 20 mm | PN16 (16 Bar) | SDR 11 / SDR 9 | Push-Fit Mechanical | Potable Water & Drip Irrigation |
| 25 mm | PN16 (16 Bar) | SDR 11 / SDR 9 | Push-Fit Mechanical | Residential Service Lines |
| 32 mm | PN16 (16 Bar) | SDR 11 / SDR 9 | Push-Fit Mechanical | Agricultural & Turf Irrigation |
| 50 mm | PN16 (16 Bar) | SDR 11 / SDR 13.6 | Mechanical Nut Lock | Commercial & Farm Mainlines |
| 63 mm | PN16 (16 Bar) | SDR 11 / SDR 13.6 | Mechanical Nut Lock | Industrial Distribution Lines |
| 75 mm | PN10 (10 Bar) | SDR 17 / SDR 13.6 | Heavy-Duty Mechanical | Municipal Supply & Transfer |
| 90 mm | PN10 (10 Bar) | SDR 17 / SDR 13.6 | Heavy-Duty Mechanical | Mining & Bulk Fluid Handling |
| 110 mm | PN10 (10 Bar) | SDR 17 / SDR 13.6 | Heavy-Duty Mechanical | Main Distribution Trunk Lines |
PP Compression Fittings Range
High-performance polypropylene compression fittings engineered for leak-free, high-pressure PE pipe connections across irrigation, drinking water, and industrial applications.
Key Advantages & Engineered Features
Designed to simplify field installations while delivering zero-leak performance and long-term mechanical strength under demanding pressure conditions.
Tool-Free Quick Assembly
Installs effortlessly without special welding machinery or power sources, drastically reducing labor time and job-site installation costs.
UV & Weather Resistant
Compounded with high-grade UV stabilizers to resist degradation from prolonged sunlight exposure in outdoor agricultural and exposed piping lines.
Corrosion & Chemical Proof
Immune to electrochemical rust, soil aggressiveness, and a wide array of agricultural fertilizers and industrial chemicals.
Reusable & Dismountable
Fittings can be easily unbolted, removed, and reused on new pipe layouts without damaging the connection components or piping.
4-Step Assembly Overview
Simple, tool-free mechanical installation for leak-free, high-pressure PE connections.
Cut & Chamfer
Cut pipe square and chamfer the edge to prevent damaging the O-ring seal during insertion.
Loosen Nut
Unscrew blue nut by 3-4 turns without removing internal ring components from body.
Insert Pipe
Push pipe firmly into fitting through clinch ring until it hits internal stop socket.
Tighten Nut
Hand-tighten nut firmly (use strap wrench for Ø 63mm+). Connection is ready for pressure.
Frequently Asked Questions
Everything you need to know about UNITECH HDPE pipes, PP compression fittings, pressure ratings, and installation.
What pressure ratings (PN) are available for UNITECH fittings?
UNITECH PP compression fittings are available in PN10 (10 bar / 145 PSI) and PN16 (16 bar / 232 PSI) pressure classes at standard ambient water temperatures (20°C). PN10 is ideal for agricultural irrigation, while PN16 is designed for high-pressure municipal and industrial mains.
Do PP compression fittings require welding or specialized tools?
No. PP compression fittings are completely mechanical and tool-free for sizes up to 50mm. You simply insert the chamfered PE pipe and tighten the nut by hand. A standard strap wrench can be used for larger sizes (63mm to 110mm) to achieve optimal torque.
Are UNITECH PP fittings suitable for outdoor UV exposure?
Yes. All UNITECH polypropylene bodies and nuts are compounded with UV stabilizers (including high-grade carbon black additives) to prevent degradation, cracking, or loss of mechanical strength when installed above-ground under direct sunlight.
Can these fittings be disassembled and reused?
Yes. Unlike heat-fusion or glued joints, PP compression fittings can be easily unscrewed, relocated, and reused on new pipe layouts without damaging the fitting components or the pipe body.
What pipe materials are compatible with PP compression fittings?
They are engineered specifically to join Polyethylene pipes, including HDPE (PE100, PE80), LDPE, and MDPE lines. They are not recommended for rigid metallic or PVC/CPVC pipes.
