9527AB LF Brass Balancing Valve
The 9527AB Lead-Free Brass Balancing Valve combines variable orifice flow control with ready-to-mount actuator compatibility for intelligent system management. Featuring integral memory stop and ON/OFF functionality, this valve is ideal for automated HVAC and water systems requiring both balancing and shut-off capabilities. Certified to AB1953, NSF/ANSI 61 & 372 for safe potable water use.
Key Features
✔ Dual-Function Design - Variable orifice balancing with positive ON/OFF capability
✔ Actuator-Ready - M30x1.5 threaded connection for easy wax actuator mounting
✔ Lead-Free Safety - DZR brass construction complies with NSF/ANSI 61 & 372 standards
✔ 300 WOG Pressure Rated - Maximum 300 PSI (160°F) / 150 PSI (260°F) performance
✔ Field-Tested Accuracy - ±10% Cv tolerance when fully open (BS7350 tested)
Technical Specifications
- Material: Lead-Free DZR Brass
- Connections: Threaded (NPT, ASME B1.20.1) or Solder Joint (ASME B16.22)
- Temperature Range: 15°F to 260°F (antifreeze below 32°F; anti-boiling additives above 212°F)
- Flow Option: Low Flow (ABL) 0.49-1.17 GPM (upon request)
- Actuator Mount: Standard M30x1.5 threaded connection
Available Models
🔹 9527AB: Threaded ends with test points
🔹 9529AB: Solder joint ends with test points
Why Choose This Valve?
✅ Smart Automation - Seamless integration with control systems via actuator
✅ Double Duty Performance - Balances flow while providing reliable shut-off
✅ Future-Proof Design - Adaptable for both manual and automated operation
Engineered for professionals who demand versatility and precision in flow control solutions.
Ideal Applications
- Automated HVAC balancing systems
- Zoned water distribution networks
- Potable water systems requiring lead-free compliance
- Energy management systems with flow control needs
Upgrade to intelligent flow control - where precision balancing meets automated operation.
Dimension
| Size | N | ΦC' [m] | L² [m] | B [m] | HB [m] | HC [m] | ΦV [m] | I [m] | Valve Wt. [lb] | Act. Wt³ [lb] | Flow⁴ [GPM] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L½⁵ | ½-14 | 0.627 - 0.631 | 3.3 / 3.9 | 0.65 / 0.51 | 2.0 | 3.6/4.03 | 1.6 | 3.9 | 0.77 / 0.74 | 0.22 / 0.24 | 0.49 - 1.17 |
| ½⁶ | ½-14 | 0.627 - 0.631 | 3.3 / 3.9 | 0.65 / 0.51 | 2.0 | 3.6/4.03 | 1.6 | 3.9 | 0.77 / 0.74 | 0.22 / 0.24 | 0.98 - 2.35 |
| ½⁷ | ½-14 | 0.877 - 0.881 | 3.5 / 4.6 | 0.75 / 0.78 | 2.0 | 3.6/4.03 | 1.6 | 4.1 | 0.99 / 0.99 | 0.22 / 0.24 | 2.19 - 5.15 |
| 1⁴ | 1½-11.5 | 1.128 - 1.131 | 3.8 / 5.0 | 0.90 / 0.92 | 2.8 | 4.6 | 1.6 | 4.3 | 1.37 / 1.27 | 0.24 | 4.09 - 9.59 |
| 1½⁷ | 1½-11.5 | - | 4.3 | 0.91 | 4.7 | 5.9 | 1.8 | 4.5 | 2.1 | 0.6 | 8.56 - 19.81 |
| 1½⁸ | 1½-11.5 | - | 4.7 | 0.91 | 4.7 | 5.9 | 1.8 | 4.9 | 2.7 | 0.6 | 12.84 - 29.80 |
| 2⁹ | 2²-11.5 | - | 5.5 | 1.15 | 5.2 | 6.4 | 1.8 | 5.4 | 3.8 | 0.6 | 24.09 - 55.63 |
| Size | Max Δp (psi) Vaurien 1 |
Max Δp (psi) Vaurien 2 |
Max Δp (psi) Vaurien 3 |
|---|---|---|---|
| L ½" | 51 | 65 | - |
| ½" | 44 | 58 | - |
| ¾" | 25 | 36 | - |
| 1" | - | 25 | - |
| 1¼" | - | - | 41 |
| 1½" | - | - | 29 |
| 2" | - | - | 19 |
Material
| Part # | Component | Material | Specification |
|---|---|---|---|
| 1 | Plug | Lead free brass | ASTM B927 C27450 |
| 2 | Body | Lead free brass | ASTM B927 C27450 |
| 3 | Disc gasket | EPDM Perox | NSF Approved |
| 4 | Gasket washer | Lead free brass | DS-561 C28500 |
| 5 | Balance disc | Lead free brass | C28000 |
| 6 | Stem O-ring | EPDM Perox | NSF Approved |
| 7 | Spring cartridge | Brass | B124 C37700 |
| 8 | Spring | Stainless steel | - |
| 9 | Disc stem | Stainless steel | - |
| 10 | Stop ring | Stainless steel | - |
| 11 | Washer | Brass | B124 C37700 |
| 12 | Balancing stem | Lead free brass | DS-561 C28500 |
| 13 | Bal. stem O-ring¹ | EPDM Perox | NSF Approved |
| 14 | Bonnet O-ring | EPDM Perox | NSF Approved |
| 15 | Bonnet | Lead free brass | C28000 |
| 16 | Graduated scale | Blue polypropylene | - |
| 17 | Reg. indicator | Orange polyamide | - |
| 18 | ON/OFF cap | Blue polyamide | - |
| 19 | Test point / plug | DZR brass² | - |
Flow Measurement
| Regulating Position | L-½" | ½" | ¾" | 1" Cv (GPM/psi½) | 1¼" Cv (GPM/psi½) | 1½" Cv (GPM/psi½) | 2" Cv (GPM/psi½) |
|---|---|---|---|---|---|---|---|
| 0.5 | 0.127 | 0.578 | 0.798 | 1.538 | 2.324 | 2.486 | 4.416 |
| 1.0 | 0.173 | 0.879 | 1.237 | 2.405 | 4.058 | 4.451 | 6.960 |
| 1.5 | 0.220 | 1.098 | 1.584 | 3.121 | 5.375 | 6.474 | 9.283 |
| 2.0 | 0.254 | 1.260 | 1.896 | 3.665 | 6.061 | 7.757 | 10.47 |
| 2.5 | 0.295 | 1.399 | 2.197 | 4.162 | 6.844 | 8.695 | 11.91 |
| 3.0 | 0.335 | 1.514 | 2.451 | 4.509 | 7.561 | 9.677 | 12.95 |
| 3.5 | 0.382 | 1.607 | 2.671 | 4.844 | 8.116 | 10.47 | 14.22 |
| 4.0 | 0.428 | 1.699 | 2.856 | 5.226 | 8.786 | 11.46 | 15.49 |
| 4.5 | 0.468 | 1.769 | 3.017 | 5.491 | 9.191 | 12.14 | 16.53 |
| 5.0 | 0.543 | 1.883 | 3.179 | 5.723 | 9.898 | 12.95 | 17.69 |
| 5.5 | 0.601 | 1.884 | 3.306 | 5.942 | 10.27 | 13.41 | 18.61 |
| 6.0 | 0.659 | 1.931 | 3.422 | 6.127 | 10.96 | 13.99 | 19.42 |
| 6.5 | 0.717 | 1.965 | 3.526 | 6.312 | 11.45 | 14.34 | 20.23 |
| 7.0 | 0.775 | 2.000 | 3.619 | 6.555 | 12.14 | 14.80 | 21.04 |
| 7.5 | 0.832 | 2.035 | 3.700 | 6.740 | 12.60 | 15.26 | 21.85 |
| 8.0 | 0.879 | 2.085 | 3.792 | 6.937 | 12.95 | 15.72 | 22.66 |
| 8.5 | 0.926 | 2.081 | 3.873 | 7.097 | 13.30 | 16.07 | 23.47 |
| 9.0 | 0.969 | 2.104 | 3.942 | 7.145 | 13.76 | 16.76 | 24.15 |
| 9.5 | 0.994 | 2.116 | 4.012 | 7.283 | 14.34 | 17.34 | 24.97 |
| 10.0 | - | - | - | - | - | - | 25.55 |
| 10.5 | - | - | - | - | - | - | 26.24 |
| 11.0 | - | - | - | - | - | - | 26.59 |
| 11.5 | - | - | - | - | - | - | 27.17 |
| 12.0 | - | - | - | - | - | - | 27.40 |
| 12.5 | - | - | - | - | - | - | 27.56 |
| 13.0 | - | - | - | - | - | - | 28.09 |
| 13.5 | - | - | - | - | - | - | 28.79 |
| 14.0 | - | - | - | - | - | - | 29.13 |
| 14.5 | - | - | - | - | - | - | 29.83 |
| 15.0 | - | - | - | - | - | - | 30.17 |