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RED-WHITE VALVE CORP.  |  SKU: 30078112  |  MPN: 9519AB 1/2

Hydronic Static Balancing Valve | 9519AB Series | Solder Joint Ends

$113.00
  • Certified Lead-Free Brass Construction – DZR brass per ASTM B927, compliant with AB1953, NSF-61, and NSF-372 for potable systems.
  • Integrated Venturi Insert & Test Points – Enables accurate ΔP readings and simplified balancing verification.
  • Fixed Orifice Design with Memory Stop – Factory-calibrated for precise flow control and repeatable shut-off.
  • Solder Joint Ends – ASME B16.22 compliant for seamless integration with copper systems.
  • 300 PSI WOG Rating – Suitable for hydronic, HVAC, and domestic water balancing applications.
📄 Download Spec Sheet

Hydronic Static Balancing Valve | 9519AB Series | Solder Joint Ends

Red-White Valve 9519AB Series is a precision-engineered static balancing valve designed for hydronic and domestic water systems requiring accurate fixed-orifice flow control. Constructed from DZR lead-free brass (ASTM B927 C27453), it delivers long-term corrosion resistance, dezincification protection, and full compliance with potable water standards.

Key Features & Benefits

  • Certified Lead-Free Construction: AB1953, NSF/ANSI 61, and NSF/ANSI 372 compliant for safe potable water applications.
  • DZR Brass Body: Durable, dezincification-resistant brass ensures longevity in both HVAC and plumbing systems.
  • Venturi Insert with Test Points: Factory-installed test ports allow accurate differential pressure readings for reliable flow measurement.
  • Positive Shut-Off with Memory Stop: Maintains preset flow settings during service or system shutdown.
  • Multi-Turn Adjustment: Four full turns minimum, designed to BS7350 with ±3% Cv accuracy for precise balancing.
  • Solder Joint Ends: ASME B16.22 connections for seamless integration with copper piping systems.
  • Wide Temperature Range: Operates from 15°F to 260°F with antifreeze or anti-boil fluids as required.

Applications

  • Hydronic heating and cooling circuits
  • Fan coil and terminal unit branches
  • Domestic hot and cold water balancing
  • Commercial plumbing and chilled water systems

Technical Specifications

  • Model: 9519AB (solder ends)
  • Size Range: ½″ through 2″
  • Flow Range: 0.27 – 55.63 GPM (varies by size)
  • Working Pressure: 300 psi WOG
  • Material: DZR Lead-Free Brass, EPDM Perox gaskets, PTFE disc
  • Design Standard: BS7350
  • Certifications: AB1953, NSF/ANSI 61 & 372, BAA Compliant

Installation & Presetting

Maintain minimum 5x pipe diameter upstream and 2x pipe diameter downstream for accurate flow performance (10x upstream for pump discharge). Use the included Cv chart to preset flow rates based on design flow and differential pressure readings.

Material

Part No. Component Material Specification
1 Body DZR Lead-Free Brass ASTM B927 C27453
2 Venturi Insert DZR Lead-Free Brass ASTM B927 C27453
3 Balancing Cone DZR Lead-Free Brass ASTM B927 C27453
4 Gasket Disc PTFE -
5 Disc DZR Lead-Free Brass ASTM B927 C27453
6 Disc O-Ring EPDM Perox -
7 Shutter DZR Lead-Free Brass ASTM B927 C27453
8 Stem O-Ring EPDM Perox -
9 Union DZR Lead-Free Brass ASTM B927 C27453
10 Stem Brass ASTM B124 C37700
11 Bonnet DZR Lead-Free Brass ASTM B927 C27453
12 Stop Spring Ring Spring Steel -
13 Screw Steel -
14 Handwheel ABS (Blue) -
15 Nut Steel, Zinc-Plated -
16 Test Points DZR Brass w/ EPDM Gaskets UNS C35330

For flow measurement, Cv curves, and presetting charts, see the full RWV specification sheet for 9519AB.

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