1-1/4 in. Slip x 1/2 in. Female NPT PVC Adapter
1-1/4 in. Slip x 1/2 in. Female NPT PVC Adapter
Overview
The Midland 55784 is a PVC reducing adapter with a 1-1/4 in. female socket on one end and a 1/2 in. female NPT thread on the other. It transitions a large 1-1/4 in. solvent-weld pipe down to a 1/2 in. threaded connection, letting you tie pipe into valves, meters, or threaded equipment. White Schedule 40 PVC.
Technical Specifications
| Part Number (MPN) | 55784 |
| Fitting Type | Reducing Adapter |
| Socket End | 1-1/4 in. Female Socket (slip) |
| Threaded End | 1/2 in. Female NPT |
| Thread Size | 1/2 - 14 NPT |
| Material | PVC |
| Color | White |
| Schedule | Schedule 40 |
| Sold Per | Each |
Materials of Construction
| Body | White PVC (Schedule 40) |
| Socket Joint | Solvent cement |
| Thread | NPT, seal with PTFE tape or pipe dope |
Typical Applications
Transitions 1-1/4 in. solvent-weld PVC pipe to a 1/2 in. female NPT connection at valves, meters, gauges, and threaded equipment in chemical dosing, water treatment, and irrigation systems.
Cross-Reference and Interchange
This 1-1/4 in. slip x 1/2 in. FNPT PVC adapter cross-references to these competitor and industry part numbers: 438166, 4880K204. Replacing one of these? Match nominal size, connections, and rating, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
- PVC Schedule 40 vs 80 Fittings
- NPT Thread Tightening: Turns Past Hand-Tight
- Teflon Tape vs. Pipe Dope
- PVC Chemical Compatibility Chart
Frequently Asked Questions
Which end glues and which threads?
The 1-1/4 in. socket end solvent-welds to pipe; the 1/2 in. female NPT end threads onto a male pipe thread.
Do I need tape on the threads?
Yes. Wrap the male threads with PTFE tape or use pipe dope, then hand-tighten plus a couple of turns; do not overtighten PVC.
Is this Schedule 40 or 80?
It is Schedule 40 PVC for standard service.
What parts cross to it?
438166 and 4880K204 are listed industry crossovers; match the 1-1/4 in. socket x 1/2 in. NPT configuration to confirm.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.