1/2 in. Aluminum Anti-Siphon Valve, Hose Barb x Male NPT
$18.99
Sale price
$18.99
Regular price
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1/2 in. Aluminum Anti-Siphon Valve, Hose Barb x Male NPT
$18.99
Sale price
$18.99
Regular price
✓ In stock at the manufacturer — typically ships within 1–2 business days.
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The 1/2 in. Hose Barb x 3/8 in. Male NPT Aluminum Anti-Siphon Valve (#46533A) is an aluminum anti-siphon check valve that prevents backflow and siphoning.
Technical Specifications
| Specification | Value |
|---|---|
| Body Material | Aluminum body |
| Spring Material | Stainless Steel |
| Seal / O-ring | Buna-N (NBR) |
| Pressure Rating | 150 PSI |
| Installation | Any orientation (vertical or horizontal) |
| Part Number | 46533A |
Key Features
- Aluminum body / Stainless spring construction
- Spring-loaded — closes automatically when flow stops or reverses
- Install in any orientation — vertical or horizontal
- Buna-N (NBR) seals
- Cracking pressure factory-set for reliable sealing
- Compact inline form factor — minimal installation space required
- Hose barb port for direct tubing connection
Technical Resources
- Check Valve Types: Swing, Spring, Wafer, Ball — Understand the differences
- Shop Brass Check Valves — Full brass check valve range
Expert Guides for This Product
- Check Valve Orientation & Installation — flow direction and mounting rules
- Check Valve Sizing Guide — why line size isn't valve size
- Slamming & Water Hammer — causes and fixes
- Check Valve Leaking? — diagnose and fix it
- Check Valve Chattering — the sizing problem nobody checks
- Buna vs. Viton Seats — which elastomer fits your media