232AB LF Brass In-line Check Valve
The 232AB LF Brass Check Valve ensures reliable backflow prevention in residential, commercial, and industrial systems. Crafted from lead-free brass and certified to NSF/ANSI 61 & 372, this valve meets stringent safety standards for drinking water applications. Its spring-loaded design and low-noise operation make it ideal for HVAC, plumbing, and fluid-handling systems where quiet performance is critical.
Key Features
✅ Certified Safe & Lead-Free
- Compliant with AB1953 and NSF/ANSI 61 & 372 for potable water safety.
- Lead-free brass body aligns with California’s BAA and global health regulations.
✅ Durable, Quiet Performance
- NBR Soft Seat & POM Disc: Ensures tight sealing and low friction for silent operation.
- SS304 Stainless Steel Spring: Corrosion-resistant and built for long-term reliability.
✅ Versatile Installation
- Horizontal or Vertical Mounting: Flexible placement in tight or complex layouts.
- FNPT x FNPT Threads (ASME B1.20.1-NPT): Easy integration with standard piping systems.
✅ Industrial-Grade Construction
- 200# WOG Rating: Withstands water, oil, and gas up to 200 PSI.
- Low-Noise Design: Ideal for residential and noise-sensitive environments.
Technical Specifications
- Material: Lead-Free Brass (Body), POM (Disc), SS304 (Spring), NBR (Seat)
- 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 water, oil, or gas pipelines
- Pump and compressor protection
Why Choose This Valve?
The 232AB LF combines safety, durability, and flexibility, making it a top choice for contractors and engineers prioritizing compliance and quiet operation. Its spring-loaded mechanism and corrosion-resistant materials ensure leak-proof performance, while certifications guarantee adherence to strict health standards.
Order Today – Ensure reliable backflow prevention with a valve trusted for critical applications!
Dimension, Cv, Weight
| Size | T | A [in] | W [in] | Wrench [in] | Cv [USG/min] | Wt. [lb] | Nominal Pressure [psi] | Min. working Dp [psi] |
|---|---|---|---|---|---|---|---|---|
| ½" | ½"-14 NPT | 2.00 | 1.13 | 0.97 | 3.90 | 0.25 | 400 | 0.5 |
| ¾" | ¾"-14 NPT | 2.15 | 1.43 | 1.20 | 7.47 | 0.38 | 400 | 0.5 |
| 1" | 1"-11.5 NPT | 2.48 | 1.76 | 1.46 | 12.4 | 0.59 | 400 | 0.5 |
| 1¼" | 1¼"-11.5 NPT | 2.70 | 2.24 | 1.85 | 26.3 | 0.96 | 400 | 0.5 |
| 1½" | 1½"-11.5 NPT | 2.89 | 2.57 | 2.09 | 36.8 | 1.27 | 400 | 0.5 |
| 2" | 2"-11.5 NPT | 3.19 | 3.22 | 2.60 | 52.3 | 1.98 | 400 | 0.5 |
| 2½" | 2½"-8 NPT | 4.52 | 4.23 | 3.33 | 82.4 | 4.83 | 200 | 0.5 |
| 3" | 3"-8 NPT | 5.09 | 4.95 | 3.86 | 108 | 6.64 | 200 | 0.5 |
| Pressure/Temperature Rating | |
|---|---|
| 1/2” - 2” | 400 psi from 15 °F to 200 °F |
| 3” | 200 psi from 15 °F to 200 °F |
Material
| No. | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | Lead Free Brass | ASTM B927 C27450 |
| 2 | End piece | Lead Free Brass | ASTM B927 C27450 |
| 3 | Stem | Lead Free Brass | ASTM B927 C27450 |
| 4 | Shutter disk | Lead Free Brass | ASTM B927 C27450 |
| 5 | Gasket | EPDM Perox | NSF Approved |
| 6 | Retaining disk | Lead Free Brass | ASTM B927 C27450 |
| 7 | Spring | Stainless Steel | ISO 6931-1 4310-301-00-I-NS |