Hydronic Metering Station | 9407 Series | FNPT × MNPT | 300 PSI WOG | DZR Brass
Hydronic Metering Station | 9407 Series | FNPT × MNPT | 300 PSI WOG | DZR Brass
9407 Series DZR Brass Metering Stations are precision-engineered for accurate flow measurement in hydronic heating and cooling systems. Each station integrates a Venturi insert to ensure consistent differential pressure readings and low headloss while maintaining excellent flow accuracy. Ideal for balancing, commissioning, and system performance verification, these compact valves deliver exceptional reliability in limited-space installations.
Constructed from dezincification-resistant brass (UNS C35330), the 9407 is fully compliant with BS7350 for ±3% Cv tolerance and is rated to 300 PSI WOG. Equipped with factory-installed EPDM Perox test points, it provides dependable high/low pressure access for accurate flow calculations. Suitable for both heating and chilled water systems.
Key Features & Benefits
- DZR Brass Body and Venturi Insert — Corrosion-resistant UNS C35330 construction ensures long-term durability and stable flow accuracy.
- Precision Venturi Design — Provides consistent differential pressure measurement with low headloss per BS7350 performance standards.
- FNPT × MNPT Threaded Ends — ASME B1.20.1 compliant for reliable connection in standard hydronic piping systems.
- Wide Flow Range — Covers 0.12 to 55.63 GPM with Cv accuracy within ±3% for precise system calibration.
- High Temperature/Pressure Capability — Operates from 15°F to 260°F with antifreeze or anti-boil treated water, rated 300 PSI (WOG).
Pressure & Temperature Ratings
| Pressure Rating | Temperature Range |
|---|---|
| 300 PSI (WOG) | 15°F – 260°F |
Dimensions & Flow Range
| Size | N (Thread) | F [in] | M [in] | H [in] | L [in] | A [in] | Weight [lb] | Flow Range [GPM] |
|---|---|---|---|---|---|---|---|---|
| X-1/2" | 1/2 - 14 NPT | 0.71 | 0.60 | 2.26 | 2.36 | 0.87 | 0.48 | 0.12–0.36 |
| U-1/2" | 1/2 - 14 NPT | 0.71 | 0.60 | 2.26 | 2.36 | 0.87 | 0.48 | 0.27–0.71 |
| L-1/2" | 1/2 - 14 NPT | 0.71 | 0.60 | 2.26 | 2.36 | 0.87 | 0.48 | 0.49–1.17 |
| 1/2" | 1/2 - 14 NPT | 0.71 | 0.60 | 2.26 | 2.36 | 0.87 | 0.48 | 0.98–2.35 |
| 3/4" | 3/4 - 14 NPT | 0.75 | 0.65 | 2.36 | 2.44 | 0.87 | 0.57 | 2.19–5.15 |
| 1" | 1 - 11.5 NPT | 0.89 | 0.75 | 2.50 | 2.65 | 0.87 | 0.78 | 4.09–9.56 |
| 1-1/4" | 1-1/4 - 11.5 NPT | 0.98 | 0.84 | 2.72 | 2.85 | 0.87 | 1.02 | 8.56–19.81 |
| 1-1/2" | 1-1/2 - 11.5 NPT | 0.98 | 0.84 | 2.83 | 2.85 | 0.87 | 1.17 | 12.84–29.80 |
| 2" | 2 - 11.5 NPT | 1.15 | 1.00 | 3.07 | 3.23 | 0.87 | 1.66 | 24.09–55.63 |
Values per BS7350. Suggested flow range applicability per RWV specifications.
Material Construction
| # | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | DZR Brass | UNS C35330 |
| 2 | Venturi Insert | DZR Brass | UNS C35330 |
| 3 | Test Points¹ | DZR Brass | UNS C35330 |
¹ Test points supplied with EPDM Perox gaskets and polypropylene ties.
Applications: Designed for flow measurement, system commissioning, and hydronic balancing in commercial and residential HVAC circuits.
Warning (California Prop 65): This product can expose you to chemicals including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.