Bronze Swing Check Valve | 238 Series | FNPT x FNPT | 300# WOG
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Bronze Swing Check Valve | 238 Series | FNPT × FNPT | 300# WOG
Red-White Valve 238 Series is a rugged bronze swing check valve designed for long-term reliability in industrial and mechanical systems. Featuring a Y-pattern configuration and FNPT threaded ends (ASME B1.20.1-NPT), this valve ensures smooth, one-way flow and secure installation for water, oil, and gas applications.
Key Features & Benefits
- Pressure Rating: 150# WSP / 300# WOG for dependable performance across a wide pressure range.
- Durable Bronze Body & Disc: Made from ASTM B62 bronze with brass components (B124 C37700) for superior corrosion resistance.
- Y-Pattern Design: Provides efficient flow with minimal turbulence and reduced wear.
- Threaded FNPT × FNPT Ends: Simplifies installation and ensures leak-free sealing.
- Temperature Range: Operates safely up to 450°F for steam, oil, and water service.
- MSS-SP-80 Compliant: Built to meet industry standards for swing check valve performance.
Applications
- Water, gas, and oil lines
- HVAC and hydronic systems
- Boiler and mechanical rooms
- Industrial process piping
Specifications
- Size Range: ⅜″ through 3″
- Body Material: Bronze ASTM B62
- Cap & Disc Nut: Brass ASTM B124 C37700
- Hinge Pin: Copper
- Connection: FNPT × FNPT (ASME B1.20.1-NPT)
- Max Pressure: 300 psi at 150°F / 180 psi at 350°F
- Max Temperature: 450°F
Dimensions & Flow Data
| Size | H [in] | L [in] | S [in] | Cv | Wt [lb] |
|---|---|---|---|---|---|
| ⅜″ | 1.54 | 2.13 | 0.91 | 3 | 0.48 |
| ½″ | 1.54 | 2.26 | 1.06 | 4 | 0.58 |
| ¾″ | 1.93 | 2.84 | 1.29 | 8 | 0.92 |
| 1″ | 2.28 | 3.31 | 1.16 | 15 | 1.33 |
| 1¼″ | 2.76 | 3.90 | 2.01 | 26 | 2.23 |
| 1½″ | 3.11 | 4.45 | 2.28 | 37 | 3.24 |
| 2″ | 3.74 | 5.16 | 2.80 | 68 | 4.60 |
| 2½″ | 4.49 | 6.38 | 3.46 | 94 | 9.86 |
| 3″ | 5.20 | 7.32 | 4.02 | 133 | 14.74 |
Material Specifications
| # | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | Bronze | ASTM B62 |
| 2 | Cap | Brass | ASTM B124 C37700 |
| 3 | Disc | Bronze | ASTM B62 |
| 4 | Disc Nut | Brass | ASTM B124 C37700 |
| 5 | Hinge Pin | Copper | — |
| 6 | Plug | Brass | ASTM B124 C37700 |
| 7 | Arm | Bronze | ASTM B62 |
For complete pressure and flow data, refer to the Red-White Valve 238 specification sheet.
