1/4 in. Hose Barb x 1/4 in. Male NPT Brass Check Valve
1/4 in. Hose Barb x 1/4 in. Male NPT Brass Check Valve
Overview
Midland Industries 46529 is a 1/4 in. brass marine anti-siphon check valve with a 1/4 in. hose barb inlet and a 1/4 in. male NPT outlet. It prevents siphoning and backflow in low-pressure marine and equipment plumbing, allowing flow in one direction only. The brass body resists corrosion in marine environments.
Technical Specifications
| Manufacturer | Midland Industries |
| Part Number (MPN) | 46529 |
| Nominal Size | 1/4 in. |
| End Connections | Hose Barb x 1/4 in. Male NPT |
| Valve Type | Anti-siphon check |
| Body Material | Brass |
| Lead Content | Contains lead (not certified lead-free) |
Materials of Construction
| Body Material | Brass |
Typical Applications
Common in marine fuel-vent and bilge plumbing and other low-pressure equipment lines where siphoning must be prevented. Connect the hose to the barbed inlet and thread the male NPT end into the receiving port; flow passes from the barb toward the threaded end.
Cross-Reference and Interchange
Replacing a competitor check valve? Match nominal size (1/4 in.), connections, and rating. Send us the part number you are crossing from and we will confirm the interchange.
Sizing and Installation Resources
Frequently Asked Questions
Which direction does it flow?
Flow runs from the hose-barb inlet to the male NPT outlet; it blocks reverse flow and siphoning back toward the barb.
What connections does it have?
A 1/4 in. hose barb on one end and a 1/4 in. male NPT on the other.
Is it lead-free?
No. The brass body contains lead and is not certified lead-free.
Is this a final-sale item?
Yes. This is an imported, final-sale anti-siphon valve; confirm fit before ordering.
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.