246AB LF Brass Swing Check Valve
The 246AB LF Brass Swing Check Valve provides reliable backflow prevention in residential, commercial, and industrial systems. Crafted from lead-free brass and certified to NSF/ANSI 61 & 372 and AB1953, this valve meets stringent safety standards for drinking water applications. Its horizontal T-pattern design ensures minimal pressure drop and efficient flow, making it ideal for HVAC, plumbing, and high-pressure oil/gas systems.
Key Features
✅ Certified Safe & Lead-Free
- Compliant with AB1953 and NSF/ANSI 61 & 372 for global potable water safety.
- Lead-free brass body and disc align with California’s BAA requirements.
✅ High-Efficiency T-Pattern Design
- Horizontal T-Configuration: Reduces turbulence and optimizes flow for energy savings.
- Low-Lead Brass Disc: Durable and compliant with strict lead-content regulations.
✅ Industrial-Grade Durability
- 200# WOG Rating: Built to withstand water, oil, and gas up to 200 PSI.
- Threaded Ends (ASME B1.20.1-NPT): Easy installation with standard piping systems.
✅ Leak-Proof Reliability
- Virgin PTFE Gasket: Chemical-resistant seal ensures long-term, leak-free performance.
- Brass Seat: Corrosion-resistant for extended service life in harsh environments.
Technical Specifications
- Material: Lead-Free Brass (Body, Seat), Virgin PTFE (Gasket)
- End Connections: FNPT x FNPT (ASME B1.20.1-NPT)
- Pressure Rating: 200 PSI WOG
- Certifications: AB1953, NSF/ANSI 61 & 372
Ideal For
- Residential/commercial plumbing systems
- HVAC and refrigeration units
- Industrial oil, gas, or chemical pipelines
- Municipal water supply and fire suppression networks
Why Choose This Valve?
The 246AB LF combines safety, durability, and ease of installation, making it a top choice for contractors prioritizing compliance and performance. Its T-pattern design minimizes energy costs, while threaded ends and corrosion-resistant materials ensure hassle-free reliability.
Order Today – Trusted for critical applications where precision and safety are non-negotiable!
Dimension, Weight
| Size | T | A [in] | H [in] | L [in] | B [in] | C [in] | P [in] | Wt. [lb] |
|---|---|---|---|---|---|---|---|---|
| ¼ | ¼-18 NPT | 1.96 | 1.35 | 1.19 | 0.74 | 0.45 | 0.39 | 0.34 |
| ⅜ | ⅜-18 NPT | 1.97 | 1.35 | 1.20 | 0.74 | 0.45 | 0.39 | 0.36 |
| ½ | ½-14 NPT | 2.22 | 1.39 | 1.26 | 0.96 | 0.61 | 0.51 | 0.38 |
| ¾ | ¾-14 NPT | 2.47 | 1.57 | 2.50 | 1.02 | 0.63 | 0.73 | 0.56 |
| 1″ | 1-11.5 NPT | 3.03 | 1.81 | 1.77 | 1.14 | 0.75 | 0.94 | 0.88 |
| 1¼ | 1¼-11.5 NPT | 3.31 | 2.19 | 2.11 | 1.50 | 0.77 | 1.20 | 1.38 |
| 1½ | 1½-11.5 NPT | 3.62 | 2.42 | 2.44 | 1.61 | 0.77 | 1.42 | 1.82 |
| 2″ | 2-11.5 NPT | 4.21 | 2.81 | 2.95 | 1.48 | 0.79 | 1.77 | 2.50 |
| 2½ | 2½-8 NPT | 5.63 | 3.48 | 3.74 | 1.81 | 1.06 | 2.24 | 4.90 |
| 3″ | 3-8 NPT | 6.18 | 3.91 | 4.41 | 2.05 | 1.14 | 2.56 | 7.44 |
| 4″ | 4-8 NPT | 7.44 | 4.51 | 5.51 | 2.40 | 1.20 | 3.58 | 11.12 |
| Pressure/ Temperature rating | |
|---|---|
| 200# WOG | Temp. max. 450 °F |
Material
| Part | Material | Specification | |
|---|---|---|---|
| 1 | Body | Lead Free Brass | ASTM B927 C27450 |
| 2 | Retaining disc | Lead Free Brass | ASTM B927 C27450 |
| 3 | Stem | Lead Free Brass * | ASTM B927 C27450 |
| 4 | Bolt | Lead Free Brass | ASTM B927 C27450 |
| 5 | Gasket | PTFE | PTFE |
| 6 | Cap | Lead Free Brass | ASTM B927 C27450 |
* Stainless steel stem for size 2½ -4″