1/2 in. Inline Check Valve, Vertical or Horizontal (947143)
$54.99
Sale price
$54.99
Regular price
$84.99
Skip to product information
1/2 in. Inline Check Valve, Vertical or Horizontal (947143)
$54.99
Sale price
$54.99
Regular price
$84.99
✓ In stock at our distribution warehouses — typically ships within 1–2 business days.
Flat-rate shipping, nationwide- Orders under $100: $9.95
- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
Volume order or crossing a competitor part number? Request a quote — usually answered the same business day.
The 1/2 in. Inline Check Valve (#947143) is a compact spring-loaded inline check valve that allows flow in one direction and automatically prevents reverse flow (backflow). It installs in vertical or horizontal runs and closes instantly on flow reversal.
Availability: In stock — ships in 2–3 business days.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 947143 |
| Nominal Size | 1/2 in. |
| Type | Inline Check Valve |
| Orientation | Vertical or Horizontal |
Key Features
- Spring-loaded inline poppet — instant closure on flow reversal
- Installs vertically or horizontally
- Compact, low-maintenance, self-operating design
Common Applications
Pump and compressor discharge, water and air lines, dosing systems, and general industrial flow systems requiring dependable backflow prevention.
Technical Resources
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