1/8 in. Barb x 1/4-28 Male NPT Elbow
1/8 in. Barb x 1/4-28 Male NPT Elbow
Sizes in This Series
Single mini barb x Male NPT 90-degree brass elbows. Jump to another barb size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/8 in. Barb x 1/4 in. MNPT (this page) | 21109 | $1.74 | — |
| 1/4 in. Barb x 1/4 in. MNPT | 07069-0404P | $10.99 | Add to cart |
Overview
The MPN 21109 is a brass 90-degree single mini barb elbow that turns a 1/8 in. tubing connection onto a 1/4 in. Male NPT (1/4-18) pipe thread. It routes poly or plastic tubing at a right angle onto threaded ports where straight access is not possible.
Technical Specifications
| Manufacturer Part # | 21109 |
| Fitting Type | 90-Degree Single Mini Barb Elbow |
| Connection 1 | 1/8 in. Mini Barb |
| Connection 2 | 1/4 in. Male NPTF (1/4-18) |
| Max Operating Pressure | 150 psi |
| Operating Temperature | -40 to 160 °F |
| For Use With | Polyethylene and plastic tubing |
Materials of Construction
| Body | Brass |
| Fabrication | Machined |
Typical Applications
Used to connect 1/8 in. poly tubing at a right angle onto threaded equipment in instrumentation, pneumatic, and metering systems. The barb grips soft tubing while the tapered NPT thread seals into the mating port.
Cross-Reference and Interchange
This mini barb elbow is a standard Midland item. Replacing a competitor fitting? Send us your part number and we will confirm the interchange by matching barb size, thread, and pressure rating.
Sizing and Installation Resources
- Hose Barb Sizing Chart
- Pipe Size Reference Chart
- NPT Thread: Turns Past Hand Tight
- Teflon Tape vs. Pipe Dope
Frequently Asked Questions
What thread is on the NPT end?
A 1/4 in. Male NPTF (1/4-18) tapered pipe thread; seal it with Teflon tape or pipe dope.
What tubing fits the barb?
1/8 in. polyethylene or plastic tubing, secured with a small clamp if needed.
Is the body brass?
Yes, the elbow is machined from brass for corrosion resistance.
⚠ WARNING: This product can expose you to chemicals including lead, 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.