Bronze Non-Rising Stem Gate Valve | 280B Series | FNPT x FNPT | 125 PSI WSP / 200 PSI WOG
Bronze Non-Rising Stem Gate Valve | 280B Series | FNPT x FNPT | 125 PSI WSP / 200 PSI WOG
The 280B Series Bronze Gate Valve is a compact, durable valve designed for precise fluid shut-off in residential, commercial, and industrial systems. Its non-rising stem design keeps the stem stationary during operation, minimizing space requirements and allowing easy use in mechanical rooms, wall cavities, and tight piping configurations.
Manufactured from ASTM B62 bronze with DZR (dezincification-resistant) brass trim, this valve ensures long service life and superior corrosion resistance. With FNPT x FNPT threaded ends conforming to ASME B1.20.1, the 280B Series provides a secure, leak-free connection ideal for potable water, HVAC, and hydronic heating applications.
Key Features & Benefits
- Space-Saving Non-Rising Stem — Stem remains stationary during operation, perfect for confined installations.
- Durable Bronze Body & Wedge — Built to ASTM B62 standards with corrosion-resistant DZR brass stem and ring.
- Threaded FNPT x FNPT Ends — Machined to ASME B1.20.1 for precise fit and reliable sealing.
- High Pressure & Temperature Rating — Rated 125 PSI WSP / 200 PSI WOG and 125 PSI max at 366°F for dependable shut-off performance.
- MSS-SP-80 Compliant — Meets mechanical and flow specifications for professional-grade service applications.
Pressure & Temperature Ratings
| Pressure | Temperature Range |
|---|---|
| 200 PSI (15°F – 160°F) | 125 PSI max at 366°F |
Dimensions, Cv & Weight
| Size | T | D [in] | H [in] | L [in] | P [in] | R [in] | S [in] | Cv | Weight [lb] |
|---|---|---|---|---|---|---|---|---|---|
| ½″ | ½ - 14 NPT | 2.36 | 2.76 | 1.97 | 0.51 | 0.55 | 1.06 | 12.4 | 0.60 |
| ¾″ | ¾ - 14 NPT | 2.36 | 3.23 | 2.20 | 0.75 | 0.59 | 1.30 | 28.5 | 0.92 |
| 1″ | 1 - 11.5 NPT | 2.76 | 4.09 | 2.68 | 1.00 | 0.75 | 1.53 | 56.8 | 1.53 |
| 1¼″ | 1¼ - 11.5 NPT | 3.35 | 4.72 | 2.68 | 1.26 | 0.75 | 1.97 | 92.2 | 2.22 |
| 1½″ | 1½ - 11.5 NPT | 3.35 | 5.51 | 2.99 | 1.50 | 0.79 | 2.20 | 137 | 3.15 |
| 2″ | 2 - 11.5 NPT | 3.94 | 6.60 | 3.15 | 2.00 | 0.83 | 2.68 | 304 | 4.43 |
Material Construction
| # | Component | Material | Specification |
|---|---|---|---|
| 1 | Body | Bronze | ASTM B62 C83600 |
| 2 | Wedge | Bronze | ASTM B62 C83600 |
| 3 | Ring | DZR Brass | UNS C35330 |
| 4 | Stem | DZR Brass | UNS C35330 |
| 5 | Bonnet | Bronze | ASTM B62 C83600 |
| 6 | Packing Ring | Graphite | Sigraflex® Apx® |
| 7 | Packing Nut | Brass | ASTM B124 C37700 |
| 8 | Handwheel | Aluminum | — |
| 9 | Disc | Aluminum | — |
| 10 | Nut | Steel / Zn-Plated | ASTM A36 |
Applications: Ideal for potable water systems, HVAC isolation, hydronic heating loops, and general plumbing installations.