1″ Brass Swing Check Valve – Heavy-Duty Female Thread
$14.99 on Amazon.com (as of October 16, 2026, 8:03 AM EST) View details ↗
Protect your piping system from reverse flow with the **SYWUWV 1″ NPT Horizontal Swing Check Valve**, engineered for reliable one-way flow control in residential, commercial, and light industrial applications. This heavy-duty valve features a **brass construction with uniform wall thickness**, ensuring durability under pressure while maintaining a smooth internal finish to minimize scaling and clogging. The horizontal swing-type disc mechanism delivers quiet, efficient closure—reducing water hammer and extending service life.
Ideal for water, oil, and non-corrosive gas pipelines, this valve is designed exclusively for horizontal installation (flow parallel to pipe) and handles temperatures from **-20°C to 150°C (-4°F to 302°F)** with a **maximum working pressure of 232 psi (1.6 MPa)**. The polished internal finish promotes consistent flow performance, while the female NPT threading ensures secure, leak-free connections. Whether for plumbing, HVAC, or industrial systems, this valve combines robustness with ease of maintenance.
| Maximum Working Pressure | 232 psi (1.6 MPa) |
|---|---|
| Thread Type | 1″ NPT Female |
| Material | Brass |
| Temperature Range | -20°C to 150°C (-4°F to 302°F) |
| Compatible Media | Water, oil, non-corrosive gases |
| Installation Orientation | Horizontal only (flow parallel to pipe) |






