Orbit 38413 1/2 Inch Schedule 40 Fnpt Pvc Coupling

Product Description

The ORBIT IRRIGATION PRODUCTS INC 38413 is a Schedule 40 PVC female-threaded (FNPT) coupling designed to join two male-threaded riser pipes in irrigation systems. Rated to Schedule 40 wall thickness, this fitting handles standard irrigation line pressures and resists UV degradation and corrosion. At 1.5 inches in length with a 1.25-inch profile, it is compact enough for tight riser assemblies. The 0.5-inch thread size accepts standard half-inch male NPT risers used throughout residential and commercial irrigation layouts. Irrigation technicians and landscape contractors install this coupling when additional riser height is needed to bring a sprinkler head to the correct elevation.

This coupling is used in above-ground and in-ground sprinkler systems wherever two half-inch male-threaded riser sections must be extended or connected end-to-end. Typical applications include adjusting pop-up or fixed sprinkler head height on turf, shrub, or drip zones. The FNPT connection on both ends mates with standard Schedule 40 male NPT risers widely used in residential lawn irrigation and commercial landscape maintenance. It is sold individually and is well suited for both new installations and repair work requiring a quick riser height adjustment.

Key Features

• Schedule 40 PVC construction for durable, pressure-rated performance in irrigation systems
• 0.5-inch FNPT threads on both ends connect to standard half-inch male NPT riser pipes
• Compact form factor at 1.5 inches long and 1.25 inches wide for use in tight sprinkler head assemblies
• Corrosion-resistant and UV-stable PVC material suited for buried and exposed installations
• Lightweight at 0.03 pounds, minimizing load on riser threads and head connections

Compatibility

Designed as an OEM-style replacement or supplemental fitting for residential and commercial irrigation systems using standard 0.5-inch Schedule 40 male NPT threaded risers.

Installation Notes

Installation is performed by irrigation technicians or landscape professionals. Shut off the irrigation zone valve and relieve line pressure before threading the coupling onto existing risers. Use Teflon thread tape or an approved pipe thread sealant on all male NPT threads prior to assembly to prevent leaks. Do not overtighten PVC fittings by hand or with tools, as excessive torque can crack the fitting body.