1-1/2 inch PVC Insert Coupling Insert X Insert

1-1/2 inch PVC Insert Coupling – Barbed Fitting for Flexible Poly Pipe Systems

The 1-1/2 inch PVC Insert Coupling is a barbed fitting designed for use in cold water irrigation and distribution systems that utilize polyethylene (PE) flexible tubing. This coupling provides a secure, slip-resistant connection by inserting into the inner diameter of PE pipe and fastening with stainless steel clamps or crimp rings.

Molded from impact-resistant PVC, this fitting is intended for non-pressurized and low-pressure systems such as landscape irrigation, agricultural watering lines, and residential yard hydrants. It provides a cost-effective and corrosion-resistant solution for underground or above-grade installations in accordance with relevant plumbing and irrigation standards.

Product Specifications

• ✅ Size: 1-1/2 inch nominal insert x insert (barbed ends for use with flexible PE pipe)
• ✅ Material: Schedule-rated polyvinyl chloride (PVC)
• ✅ Pressure Rating: Suitable for cold water distribution systems up to 100 PSI (varies by installation and clamp type)
• ✅ Temperature Range: 32°F to 140°F (non-continuous use)
• ✅ Standard Compliance: Manufactured to meet ASTM D2609 and NSF 14/61 where applicable

Installation Guidelines

Ensure that flexible polyethylene tubing is cut squarely and free of burrs. Apply uniform force to seat the barbed insert fully into the tubing. Secure each end with approved stainless steel worm gear clamps or equivalent fasteners. For buried installations, confirm clamp placement and verify local code compliance for burial depth and material exposure.

Typical Applications

This insert coupling is widely used in water supply lines for sprinkler systems, low-pressure irrigation zones, and non-potable distribution systems. It enables simple repairs, extensions, and loop connections between PE tubing sections in rural, agricultural, or landscape environments.

Material and Performance Characteristics

PVC offers excellent resistance to corrosion, scaling, and most common soil chemicals. Its rigid construction supports structural integrity when buried or exposed to intermittent mechanical stress. Insert fittings are not intended for hot water or pressurized potable water systems unless specifically marked and certified.

The 1-1/2 inch PVC Insert Coupling is a dependable fitting for use in low-pressure PE piping systems, delivering mechanical reliability in field conditions. Its barbed design ensures joint retention under moderate hydraulic loads when properly clamped and installed to code.