3/8 in. Inline Check Valve
3/8 in. Inline Check Valve
Sizes in This Series
Brass inline lift check valves. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 3/8 (this page) | 944429 | $34.99 | — |
| 1-1/4 | 944433 | $64.99 | Add to cart |
Overview
Midland Industries 944429 is a 3/8 in. brass inline lift check valve with FPT x FPT (female NPT) connections and a brass disc. The disc lifts off its seat under forward flow and drops back to block reverse flow, providing simple backflow protection rated to 200 psi WOG. Service temperature ranges from 14 to 248°F.
Technical Specifications
| Manufacturer | Midland Industries |
| Part Number (MPN) | 944429 |
| Nominal Size | 3/8 in. |
| End Connections | FPT x FPT (female NPT both ends) |
| Valve Type | Inline lift check |
| Pressure Rating | 200 psi WOG |
| Temperature Range | 14 to 248°F |
| Body Material | Brass |
| Disc Material | Brass |
| Lead Content | Contains lead (not certified lead-free) |
Materials of Construction
| Body Material | Brass |
| Disc Material | Brass |
Typical Applications
Used for backflow prevention in horizontal air, oil, and water lines downstream of pumps and compressors. Lift checks rely on gravity, so install horizontally with the flow arrow pointing in the direction of intended flow.
Cross-Reference and Interchange
This valve cross-references to these competitor and industry part numbers: 103CVC, 103CV-C, RL01-108TZ . Replacing one of these? Match nominal size, end connections, and the rating for a direct fit, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
- Check Valve Types Explained
- Valve Pressure & Temperature Ratings Chart
- How to Choose the Right Valve
- NPT Thread Tightening: Turns Past Hand Tight
Frequently Asked Questions
Which way does a lift check install?
Install horizontally with the body arrow pointing in the direction of flow. The brass disc lifts under forward flow and reseats by gravity against reverse flow.
Can it mount vertically?
Lift checks are gravity-dependent and are intended for horizontal lines with the cap up. For vertical service, use a spring-loaded inline or barrel check instead.
What is the pressure rating?
200 psi WOG, with a service range of 14 to 248°F.
Is it lead-free?
No. The brass body and disc contain lead and are not certified lead-free.
California Proposition 65 Warning: This product can expose you to chemicals including Lead, which is 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.