9957W Ductile Iron Automatic Balancing Valve
The 9957W Automatic Balancing Valve ensures optimal hydraulic performance in large-scale HVAC and industrial applications. Engineered with a ductile iron body and ASME B16.42 Class 150 flanges, this valve automatically adjusts flow rates from 25.4 to 1,778 GPM while maintaining system efficiency.
✔ Ideal for:
- District heating/cooling plants
- High-rise hydronic systems
- Industrial process water control
Key Features & Benefits
✅ Wide Flow Range – Single cartridge handles 25.4–154 GPM (2½"–3") | Multi-cartridge supports up to 1,778 GPM (DN≥4")
✅ ASME B16.42 Class 150 Rated – Certified for high-pressure commercial systems
✅ Automatic Balancing – Self-adjusts to maintain preset flow rates without manual intervention
✅ Test Points Included – Simplifies system diagnostics and commissioning
✅ Extreme Temperature Ready – Operates from 15°F to 260°F (with antifreeze/anti-boil additives)
✅ Ductile Iron Construction – Corrosion-resistant and durable for long-term use
Technical Specifications
- Body Material: Ductile iron
- Flange Standard: ASME B16.42 Class 150
- Flow Range: 25.4–1,778 GPM (configurable)
-
Temperature Range:
- Water: 15°F–260°F
- Below 32°F: Requires antifreeze
- Above 212°F: Requires anti-boil additives
- Accessories: Eyebolts for DN≥4" valves
Why Choose the 9957W?
🔧 Reduces commissioning time with automatic flow regulation
📊 Test points enable real-time monitoring
⚙️ Multi-cartridge option for ultra-high-flow applications
🏗️ Industrial-grade durability for critical systems
Order Today for Reliable Hydronic Balance!
Includes: Valve body, cartridge(s), and test ports. Flanges/gaskets sold separately.
Dimension
| Size | ØD [in] | A [in] | H [in] | # of Cartridge | Valve Wt.¹ [lb] | Cart. Wt.² [lb] | Flow Rate [GPM] |
|---|---|---|---|---|---|---|---|
| 2½" | 4.69 | 6.69 | 6.38 | 1 | 9.0 | 3.0 | 25.4-154 |
| 3" | 5.16 | 6.69 | 6.61 | 1 | 12.3 | 3.0 | 25.4-154 |
| 4" | 6.42 | 8.27 | 7.24 | 2 | 18.5 | 3.0 | 25.4-308 |
| 5" | 7.60 | 8.27 | 7.83 | 3 | 23.4 | 3.0 | 25.4-462 |
| 6" | 8.50 | 8.27 | 8.27 | 4 | 27.6 | 3.0 | 25.4-616 |
| 8" | 10.7 | 8.27 | 9.37 | 7 | 34.8 | 3.0 | 25.4-1078 |
| 10" | 12.9 | 8.27 | 10.5 | 10 | 49.2 | 3.0 | 25.4-1,540 |
| 12" | 15.1 | 8.27 | 11.6 | 14 | 61.1 | 3.0 | 25.4-2,156 |
¹ Valve weight without cartridge
² Weight per single cartridge
Material
| Part | Material | Specification |
|---|---|---|
| 1 | Body | ASTM A536 60-40-18 |
| 2 | Blind cap | ASTM C35330 |
| 31 | Screw | Stainless Steel |
| 41 | Washer | Stainless Steel |
| 5 | Piston | Stainless Steel |
| 6 | Cartridge body | ASTM C35330 |
| 7 | Cartridge spring | AISI 302 |
| 8 | Cartridge O-ring | EPDM Perox |
| 9 | Eyebolt | Steel |
| 10 | Extension | ASTM C35330 |
| 112 | Test point | ASTM C35330 |
1 For 2½" and 3", Stainless Steel Spring is used instead of Screw and Washer
2 Test points include EPDM gaskets and polypropylene ties