The Schedule 80 PVC Slip Union is the smartest way to plumb your system for future maintenance. By installing a union near pumps, filter stations, or PVC ball valves, you create a detachable access point that allows you to remove components without cutting the pipe.
These essential irrigation fittings feature a three-part design: two socket ends that solvent weld directly to your pipe, and a central threaded nut that seals them together with an O-ring. This design ensures a leak-proof connection that can be unscrewed by hand at any time, saving you from costly repair work down the road.
Key details for system planning.
| Specification | Details |
|---|---|
| Product Type | Union (Detachable Coupling) |
| Connection | Slip x Slip (Fits OVER Pipe) |
| Material | Schedule 80 PVC (Gray) |
| O-Ring Material | EPDM |
| Standards | ASTM D-1784, ASTM D-2467, NSF Approved |
| Manufacturer | NDS |
| MPN (1/2") | U-0500-S |
| MPN (3/4") | U-0750-S |
| MPN (1") | U-1000-S |
| MPN (1 1/4") | U-1250-S |
| MPN (1 1/2") | U-1500-S |
| MPN (2") | U-2000-S |
Install correctly to avoid gluing the union shut.
Step 1: Disassemble
Unscrew the union nut and separate the three parts (two tailpieces and the nut/O-ring assembly).
Step 2: Slide the Nut On
Crucial: Slide the large union nut onto one of your pipes before gluing the tailpiece.
Step 3: Glue Tailpieces
Use Purple Primer and PVC Glue to solvent weld the slip ends onto your pipes. Ensure the O-ring face is clean.
Step 4: Connect
Once the glue has set, align the two ends and hand-tighten the union nut. Do not use wrenches on the nut as it may crack.
Verify your pipe size:
Ensure a secure installation with these required supplies:
Apr 29th 2026
Apr 28th 2026
Apr 27th 2026
Apr 23rd 2026
