ASTM F3347

ASTM F3347 is the standard specification for metal press insert fittings with factory assembled stainless steel press sleeves for SDR9 cross-linked polyethylene (PEX) tubing and SDR9 polyethylene of raised temperature (PE-RT) tubing. It provides a technical basis for evaluating fittings intended to join these tubing systems with consistent performance and reliable assembly. For manufacturers, specifiers, and buyers, this ASTM standard helps define a clear product framework for compliance, quality control, and product selection.

Overview of ASTM F3347

This specification addresses metal press insert fittings designed for use with factory assembled stainless steel press sleeves in SDR9 PEX and SDR9 PE-RT tubing applications. As a product standard, ASTM F3347 is relevant to the design, evaluation, and procurement of fittings used in press-connected tubing systems. It is especially useful where a documented standard is needed to support consistent manufacturing and help align product requirements with the intended tubing materials and dimensions.

Common use cases of ASTM F3347

ASTM F3347 is commonly used when sourcing or verifying fittings for press-connection systems built around SDR9 PEX or SDR9 PE-RT tubing. It may be referenced in product development, specification writing, incoming inspection, and purchasing decisions for metal press insert fittings with stainless steel press sleeves. The standard is also useful when comparing products or confirming that a fitting is intended for the specific tubing types identified in the title.

Benefits of using ASTM F3347

Using ASTM F3347 helps support more consistent product evaluation and clearer communication between manufacturers, distributors, and end users. It can reduce uncertainty during procurement by tying the fitting to a recognized ASTM specification and a defined tubing application. For quality control and compliance efforts, the standard provides a practical reference point for checking whether a product is aligned with the intended materials, assembly approach, and performance expectations for press insert fitting applications.

• Metal press insert fitting specification
• Factory assembled stainless steel press sleeve
• For SDR9 PEX tubing
• For SDR9 PE-RT tubing
• Useful for compliance and product evaluation