RED-WHITE VALVE CORP.  |  SKU: 30078028  |  MPN: 237AB 1/2

237AB LF Brass Swing Check Valve

$33.10
Size
$50 minimum order required

🏗️ ASME B16.22 Solder Integrity
Guarantees leak-proof joints in fire suppression and copper plumbing systems—trusted for high-stakes installations.

📉 Energy-Saving Y-Pattern
Reduces pressure drop by 30% vs. straight designs, cutting pump costs in HVAC and municipal water networks.

🔄 Zero-Maintenance Swing Check
Self-cleaning disc mechanism resists debris buildup in industrial oil/gas pipelines, slashing downtime.

🌐 Global Compliance Ready
Exceeds AB1953 + NSF/ANSI 61/372 for California and international potable water projects.

The 237AB LF Brass Swing Check Valve delivers 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 the strictest safety standards for drinking water applications. Its Y-pattern design minimizes turbulence and pressure loss, while the swing check mechanism ensures smooth, maintenance-free operation—perfect for HVAC, plumbing, and industrial pipelines.

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 Design

  • Y-Pattern Configuration: Reduces pressure drop and optimizes flow for energy-efficient systems.
  • Swing Check Mechanism: Self-cleaning action ensures reliable sealing and longevity.
  • Virgin PTFE Gasket: Leak-proof and resistant to chemicals, ensuring a durable seal.

 Industrial Durability

  • 125# WSP / 200# WOG Rating: Built to handle water, oil, and gas under high pressure.
  • Solder Ends (ASME B16.22): Permanent, leak-free joints for copper piping systems.

 Compliance & Reliability

  • Meets MSS-SP-80 for industrial-grade valve performance.
  • Corrosion-resistant brass construction extends lifespan in harsh environments.

Technical Specifications

  • Material: Lead-Free Brass (Body, Disc), Virgin PTFE (Gasket)
  • End Connections: Solder x Solder (ASME B16.22)
  • Pressure Rating: 125 PSI WSP / 200 PSI WOG
  • Standards: MSS-SP-80, AB1953, NSF/ANSI 61 & 372

Ideal For

  • Residential/commercial plumbing systems
  • HVAC and refrigeration units
  • Industrial oil, gas, or chemical pipelines
  • Fire suppression and municipal water networks
  • Why Choose This Valve?

The 237AB LF combines safety, durability, and ease of installation, making it a top choice for contractors and engineers. Its Y-pattern design reduces energy costs by minimizing pressure loss, while lead-free construction ensures compliance with the most rigorous health standards.

Order Today – Trusted for critical applications where performance and safety cannot be compromised!

Dimension, Cv, Weight

Size A [in] H [in] P [in] Cv Wt. L [lb]
½" 2.60 1.65 0.59 5.33 0.35
¾" 3.39 1.97 0.75 10.5 0.87
1" 4.09 2.28 0.98 19.0 1.33
1¼" 4.72 2.71 1.26 32.8 2.04
1½" 5.35 3.19 1.50 50.6 2.80
2" 6.69 3.86 1.97 88.1 4.78
Pressure/Temperature Rating
200 psi from 15 °F to 160 °F 125 psi max. at 366 °F

Material

No. Part Material Specification
1 Body Lead Free Brass ASTM B927 C28500
2 Disc Lead Free Brass ASTM B927 C28500
3 Stem Lead Free Brass ASTM B927 C28500
4 Screw Lead Free Brass ASTM B927 C28500
5 Gasket PTFE PTFE
6 Cap Lead Free Brass ASTM B927 C28500