9529AB LF Brass Balancing Valve
The 9529AB Lead-Free Brass Balancing Valve combines variable orifice precision with automation-ready design for modern HVAC and water systems. Featuring an integral memory stop and ON/OFF capability, this valve delivers exact flow regulation while supporting seamless integration with control systems. Certified to AB1953, NSF/ANSI 61 & 372 for safe potable water use.
Key Features
✔ Dual-Function Design – Balances flow while providing reliable shut-off for system efficiency
✔ Actuator-Ready – M30x1.5 threaded connection for quick wax actuator installation
✔ Lead-Free Safety – DZR brass construction meets NSF/ANSI 61/372 drinking water standards
✔ Field-Tested Accuracy – ±10% Cv tolerance when fully open (BS7350 certified)
✔ Extreme Durability – 300 WOG rating (300 PSI @ 160°F / 150 PSI @ 260°F)
Technical Specifications
- Material: Lead-Free DZR Brass
- Connections: Solder Joint Ends (ASME B16.22)
- Temperature Range: 15°F to 260°F (antifreeze required below 32°F; anti-boiling additives above 212°F)
- Actuator Compatibility: Standard M30x1.5 thread for linear actuators
- Testing Compliance: BS7350 for flow tolerance validation
-
Models Available:
- 9527AB: Threaded ends (NPT, ASME B1.20.1)
- 9529AB: Solder joint ends (ASME B16.22)
Why Engineers Choose This Valve
✅ Precision Control – Variable orifice design adjusts flow with surgical accuracy
✅ Future-Proof Automation – Ready for smart system integration via actuators
✅ Zero-Compromise Safety – Full lead-free compliance for potable water systems
✅ All-Environment Ready – Performs in extreme cold/heat with proper additives
Ideal Applications
- Automated HVAC balancing systems
- Zoned domestic water distribution
- Commercial plumbing networks requiring lead-free certification
- Energy-efficient building management systems
Includes
- Pre-mounted test points for easy diagnostics
- Durable blue polyamide ON/OFF cap for visual identification
Upgrade to Smarter Flow Control – Where precision balancing meets effortless automation.
Dimension
| Size | N | ØC¹ [in] | L² [in] | B [in] | HB [in] | HC [in] | ØV [in] | I [in] | Valve Wt. [lb] | Act. Wt.³ [lb] | Flow⁴ [GPM] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ½" | ½-14 NPT | 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 |
| ¾" | ¾-14 NPT | 0.877-0.881 | 3.5/4.6 | 0.76/0.78 | 2.0 | 3.6/4.03 | 1.6 | 4.1 | 0.99/0.99 | 0.22/0.24 | 2.19-5.15 |
| Size | Max Δp (psi) | ||
|---|---|---|---|
| Vaurien 1 | Vaurien 2 | Vaurien 3 | |
| ½" | 44 | 58 | - |
| ¾" | 25 | 36 | - |
Material
| Part | 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 - |