ASTM F1960-23b PDF

Overview

ASTM F1960-23b, Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) and Polyethylene of Raised Temperature (PE-RT) Tubing, provides comprehensive requirements for cold expansion fittings and PEX reinforcing rings. These components support safe and reliable connections in hot and cold potable water distribution systems, as well as in sealed central heating applications, including under-floor heating.

The standard addresses compatibility with PEX and PE-RT tubing in a broad range of nominal sizes, ensuring pressure performance up to 100 psi at temperatures up to 180°F (82°C). ASTM F1960-23b establishes material, dimensional, marking, and performance requirements, aiming to promote uniformity and safety across plumbing and heating installations in both residential and commercial settings.

Key Topics

• Scope: Covers cold expansion fittings and cross-linked (PEX) reinforcing rings for use with PEX and PE-RT tubing of specific nominal diameters, per ASTM F876, F3253, and F2769.
• Materials: Specifies permissible materials for fittings, including brass, stainless steel, wrought copper, polysulfone, polyphenylene sulfide, and requirements for PEX reinforcing rings.
• Performance requirements: Outlines density, degree of cross-linking, and thermal oxidative resistance for PEX reinforcing rings, including specific testing protocols.
• Dimensions and Tolerances: Provides detailed dimensional and alignment requirements for fittings and reinforcing rings to ensure proper function and compatibility.
• Marking and Identification: Requires manufacturers to apply legible and durable markings to fittings and PEX rings, including product designation, manufacturer's name, and size.
• Assembly and Testing: Describes procedures for assembling fittings with PEX or PE-RT tubing and expansion tools, along with protocols for reinforcing ring testing.
• Safety and Potable Water Compliance: Stipulates that products must comply with ANSI/NSF 61 and relevant health and safety practices if intended for potable water applications.

Applications

ASTM F1960-23b is widely utilized in the construction and plumbing industries for:

• Residential and Commercial Plumbing: Ensures reliable connections in hot and cold potable water distribution systems, supporting both single and multi-family housing projects, as well as commercial buildings.
• Central Heating Systems: Supports use in sealed systems, including hydronic and under-floor heating, providing secure pipe connections capable of handling elevated temperatures and pressures.
• Building Supply Lines: Provides guidelines for fittings and reinforcing rings used in main water supply and distribution within buildings.
• Flexible Plastic Piping Systems: Helps standardize the performance and safety of systems using flexible PEX and PE-RT tubing, a popular alternative to traditional copper or steel piping.
• Regulatory and Quality Assurance: Used by manufacturers, inspectors, and regulatory authorities to verify code compliance and industry best practices for fittings and components installed in potable water and heating systems.

Related Standards

ASTM F1960-23b references and aligns with several other key standards, including:

• ASTM F876: Standard Specification for Crosslinked Polyethylene (PEX) Tubing
• ASTM F3253: Standard Specification for PEX Tubing with Oxygen Barrier
• ASTM F2769: Standard Specification for Polyethylene of Raised Temperature (PE-RT) Tubing
• ASTM F877: Standard Specification for PEX Hot- and Cold-Water Distribution Systems
• ANSI/NSF 14 and 61: Standards for plastic piping components and health effects for drinking water system components
• ASTM Material Specifications: Including standards for brass (B16/B16M, B140/B140M), stainless steel (A351/A351M), copper (B75/B75M), polyphenylene sulfide (D6358), and polysulfone (D6394)
• ISO 9080 and 12162: International standards for thermoplastics pipe materials relating to hydrostatic strength and classification

By incorporating these references, ASTM F1960-23b ensures that products meet a unified set of performance, reliability, and safety criteria required for modern PEX and PE-RT plumbing systems.

Keywords: ASTM F1960-23b, PEX fittings, cold expansion fittings, PEX reinforcing rings, PE-RT tubing, potable water systems, under-floor heating, cross-linked polyethylene, polyethylene of raised temperature, plumbing standards.