RED-WHITE VALVE CORP.  |  SKU: 30078341  |  MPN: 9519 1/2

Fixed Orifice Balancing Valve | 9519 Series | Solder x Solder | With Test Points

$69.00
Size | Connection Type | Min Order Qty (MOQ)
  • 🔧 Dezincification-Resistant Brass (DZR): Built with C35330 DZR brass for enhanced corrosion resistance, especially in aggressive water environments.
  • 🔬 Venturi Insert for Accurate Flow Reading: Designed with an internal Venturi insert for more precise differential pressure readings than standard static balancing valves.
  • 📏 Wide Operating Temperature Range: Suitable for hydronic systems operating from 15°F to 260°F, including systems with antifreeze or anti-boil additives.
  • ⚙️ Memory Stop with Multi-Turn Adjustment: Ensures repeatable settings with a minimum of 4 full turns, allowing precise manual balancing in all system sizes.
  • 🧪 Includes Test Points with EPDM Gaskets: Pre-installed pressure test points for easy commissioning and diagnostics, secured with high-quality EPDM Perox seals.

Upgrade your hydronic system with the 9519 Fixed Orifice Static Balancing Valve, a premium, solder-joint valve designed for reliable, high-efficiency flow balancing. Crafted from DZR brass (UNS C35330) and engineered to BS7350 standards, this valve ensures accurate regulation, minimal maintenance, and long-lasting durability—even under demanding conditions.

🔧 Key Features:

  • Venturi Insert for Accurate Flow Measurement
    Built-in Venturi ensures consistent pressure drop for accurate ΔP readings and flow calculations.
  • Positive Shut-Off with Memory Stop
    Lock-in precision flow settings with multi-turn adjustment (4+ full turns), ideal for commissioning and future service.
  • Solder Joint Ends
    Compliant with ASME B16.22, this model is optimized for solder installations in closed-loop systems.
  • High-Temperature Operation
    Operates from 15°F to 260°F, suitable for glycol-treated chilled or hot water systems.
  • Test Points Included
    EPDM-peroxide gasketed pressure test points included for both high and low-pressure readings.
  • Dezincification Resistant Brass (DZR)
    Built to resist corrosion and extend lifespan in aggressive water conditions.
  • Meets BAA Requirements
    Suitable for federal projects with Buy American Act compliance.

📏 Technical Specifications:

  • Body Material: DZR Brass (UNS C35330)
  • Pressure Rating: 300 WOG
  • Flow Range (½" to 2”): 0.12 – 55.63 GPM
  • Handwheel Adjustment Range: Cv varies by size and preset – up to 34.36 GPM/√psi
  • Temperature Range: 15°F to 260°F
  • Ends: Solder (ASME B16.22)

📘 Common Applications:

  • HVAC hydronic heating/cooling systems
  • Fan coil units
  • Chilled water loops
  • Radiant floor heating
  • Terminal unit balancing

⚠️ Important Safety Note:

This product contains materials known to the State of California to cause cancer and reproductive harm. Please refer to P65Warnings.ca.gov for more details.

Dimension, Weight

Size N ΦC¹ [in] H [in] L² [in] B² [in] Weight² [lb] Flow range [GPM]
X-½" ½ - 14 NPT 0.627-0.631 4.06 3.46/3.74 0.71/0.55 1.23/1.16 0.12-0.36
U-½" ½ - 14 NPT 0.627-0.631 4.06 3.46/3.74 0.71/0.55 1.23/1.16 0.27-0.71
L-½" ½ - 14 NPT 0.627-0.631 4.06 3.46/3.74 0.71/0.55 1.23/1.16 0.49-1.17
½" ½ - 14 NPT 0.627-0.631 4.06 3.46/3.74 0.71/0.55 1.23/1.16 0.98-2.35³
¾" ¾ - 14 NPT 0.877-0.881 4.06 3.78/4.18 0.75/0.76 1.43/1.34 2.19-5.15³
1" 1 - 11.5 NPT 1.128-1.131 4.06 3.94/4.57 0.89/0.92 1.73/1.55 4.09-9.56³
1¼" 1¼ - 11.5 NPT 1.378-1.381 4.85 4.63/5.28 0.98/0.98 2.78/2.53 8.56-19.81³
1½" 1½ - 11.5 NPT 1.628-1.632 4.94 5.00/5.90 0.98/1.10 3.50/3.16 12.84-29.80³
2" 2 - 11.5 NPT 2.128-2.132 5.34 5.72/6.73 1.15/1.35 4.80/4.46 24.09-55.63³

Material

Part Material Specification
1 Body DZR Brass
UNS C35330
2 Venturi insert DZR Brass
UNS C35330
3 Balancing cone DZR Brass
UNS C35330
4 Gasket disc PTFE
5 Disc¹ DZR Brass
UNS C35330
6 Disc O-ring¹ EPDM Perox
7 Shutter DZR Brass
UNS C35330
8 Stem O-ring EPDM Perox
9 Union¹ DZR Brass
UNS C35330
10 Stem Brass
ASTM B124 C37700
11 Bonnet DZR Brass
ASTM C35330
12 Stop spring ring Spring steel
13 Screw Steel
14 Handwheel ABS (blue)
15 Nut Steel / Zn plated
16 Test point DZR Brass²
UNS C35330

¹ Only on 1½", 1½" and 2"
² Test points with EPDM Perox gaskets and polypropylene ties

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