3/4 inch X 1/2 inch PEX Brass Reducing Insert Coupling Crimp x Crimp

3/4" x 1/2" PEX Reducing Insert Coupling – Brass, Crimp Connection

The 3/4" x 1/2" PEX Reducing Insert Coupling is engineered for secure transitions between varying PEX pipe sizes in potable water systems. Designed for ASTM F1807 compliance, this coupling enables dependable crimp-style installations using copper rings or stainless steel clamps and is manufactured from lead-free brass to meet all current low-lead plumbing codes.

Application Overview

This insert-style coupling allows for reduction from 3/4" PEX main lines to 1/2" branches in pressurized water distribution systems. It supports high-flow applications while maintaining a strong mechanical connection, making it suitable for residential and light commercial systems.

• ✅ Material: Lead-free DZR (Dezincification-Resistant) brass for increased corrosion resistance
• ✅ Connection Method: Crimp or clamp (ASTM F1807/F877 compliant)
• ✅ Temperature/Pressure Rating: 200°F at 200 psi when installed per system specifications
• ✅ Barbed Insert Design: Machined for consistent grip and secure sealing with PEX tubing

Installation Requirements

Use a PEX crimping tool and properly sized crimp rings or stainless clamps for installation. Verify ring integrity with a calibrated go/no-go gauge to ensure code compliance. No soldering, glue, or sealant is needed, as the mechanical bond is formed through compression.

Technical Specifications

• Nominal Sizes: 3/4" x 1/2"
• Fitting Type: Reducing coupling, insert-style
• Material: No-lead brass (≤0.25% weighted lead content)
• Standards Compliance: ASTM F1807, NSF/ANSI 61 & 372, CSA B137.5

Typical Applications

Installed in PEX potable water systems requiring reduction from 3/4" trunk lines to 1/2" branches. Used extensively in single-family residential construction and multi-unit housing where performance, ease of installation, and code compliance are critical.

Note for Installers

This fitting is not intended for use with CPVC, copper, or expansion PEX (ASTM F1960) systems. Ensure compatibility with the project’s PEX tubing specification and regional plumbing codes.

With proven reliability and precision manufacturing, the 3/4" x 1/2" Brass Reducing Insert Coupling from Sioux Chief is a trusted solution for professionals working on pressurized PEX water systems.