3/4" x 100' hePEX Barrier Tube Coil, Heat Transfer, White

Product Overview

The Uponor A1140750 HePEX Barrier Tubing is a 3/4-inch nominal size, 100-foot coil of cross-linked polyethylene (PEX-a) tubing designed for hydronic heating, cooling, and distribution systems. Engineered for long-term durability and oxygen diffusion resistance, this tubing ensures reliable performance under demanding temperature and pressure conditions. The HePEX series incorporates an EVOH oxygen barrier to protect system components from corrosion and is compatible with Uponor ProPEX® and other approved fitting systems.

Technical Specifications

• Manufacturer: Uponor, Inc.
• Model Number: A1140750
• Description: HePEX Barrier Tubing – 3/4 in x 100 ft Coil
• Reference Number: 1914336
• Nominal Size: 3/4 in (19 mm)
• Inside Diameter (ID): 0.671 in (17.0 mm)
• Outside Diameter (OD): 0.875 in (22.2 mm)
• Coil Length: 100 ft (30.5 m)
• Material: Cross-linked polyethylene (PEX-a) with EVOH oxygen barrier
• Color: White
• Working Pressure Ratings:
  • 160 psi @ 73.4°F (23°C)
  • 100 psi @ 180°F (82°C)
  • 80 psi @ 200°F (93°C)
• Temperature Range: 73.4°F to 200°F (23°C to 93°C)
• Oxygen Barrier: EVOH layer meeting ASTM F876 oxygen diffusion requirements (DIN 4726 compliant)
• Joining Method: Compatible with Uponor ProPEX® expansion fittings, manifolds, and accessories
• Wall Thickness: SDR9 per ASTM F876/F877
• Minimum Bend Radius: 5x OD for cold bending applications
• Application:
  • Hydronic radiant floor heating and cooling systems
  • Snow and ice melting systems
  • Hydronic baseboard or radiator systems
  • Chilled water distribution loops
• Performance Characteristics:
  • High flexibility allows installation with minimal fittings
  • Oxygen barrier prevents corrosion in ferrous system components
  • Excellent resistance to scale, corrosion, and chemical degradation
• Installation Requirements:
  • Install using Uponor-approved tools and fittings
  • Protect from direct UV exposure beyond 30 days of installation
  • Pressure test per ASTM and local code prior to system operation
• Compliance and Certifications:
  • ASTM F876 / F877 – PEX Tubing for Pressure Applications
  • ASTM F2023 – Chlorine Resistance Classification
  • CSA B137.5 – PEX Pressure Pipe
  • NSF/ANSI 14 and 61 Certified for Hydronic Applications
  • Manufactured under ISO 9001:2015 Quality Management System
• Service Life: 50 years under rated pressure and temperature conditions
• Markings: Sequential footage markings and compliance data along tubing length
• Country of Manufacture: United States

Summary

The Uponor A1140750 HePEX Barrier Tubing is a 3/4-inch, 100-foot PEX-a coil rated for 80–160 psi and 73.4°F–200°F operation. Constructed from cross-linked polyethylene with an EVOH oxygen barrier, it provides durable, corrosion-resistant performance for professional hydronic and radiant heating system installations.