The Schedule 40 PVC Threaded Bushing is a space-saving adapter designed to reduce the thread size of a fitting without adding extra length to your system. It features Male Pipe Threads (MIPT) on the exterior and smaller Female Pipe Threads (FIPT) on the interior, allowing it to screw flush (or nearly flush) into a larger port.
This fitting is essential for adapting large irrigation headers or pump outlets to smaller components. For example, you can use a threaded bushing to step down a 1" Tee outlet to accept a Pressure Gauge or 1/2" sprinkler riser, creating a clean and professional connection without the need for glue.
Check your thread sizes carefully.
| Specification | Details |
|---|---|
| Product Type | Threaded Reducer Bushing |
| Outer Connection (Large) | Male Pipe Thread (MIPT) |
| Inner Connection (Small) | Female Pipe Thread (FIPT) |
| Material | White Schedule 40 PVC |
| Max Temperature | 140° F (Not for hot water) |
| Standards | ASTM D-1784, ASTM D-2466, NSF-PW |
| MPNs (Common Sizes) |
439-101 (3/4" x 1/2"), 439-130 (1" x 1/2"), 439-131 (1" x 3/4") |
Proper sealing is required on both the inside and outside threads.
Step 1: Tape the Bushing
Wrap thread seal tape around the external (MIPT) threads of the bushing. Apply 3-4 wraps in a clockwise direction.
Step 2: Install Bushing
Screw the bushing into your larger female fitting (e.g., Tee or Elbow). Tighten with a wrench until snug. Do not overtighten.
Step 3: Tape the Accessory
Wrap tape around the male threads of the smaller component (riser, nipple, or gauge) you intend to install.
Step 4: Complete Connection
Screw the small component into the internal (FIPT) threads of the bushing. Hand-tighten firmly.
Ensure you have the right mix:
Ensure a leak-free system with these essentials:
Dec 17th 2025
Dec 16th 2025
Dec 15th 2025
Dec 11th 2025
