FPD320
Flow Nozzle FPD320
Flow Nozzle Primary Element
Starting from:
$2,300.00
Categories:
A fixed differential-pressure flow element with a smooth contoured nozzle, used for high-velocity flows where an orifice plate would suffer excessive wear. It does not depend on a sharp edge, giving excellent long-term accuracy under erosive conditions.
The McMenon FPD320 Flow Nozzle is engineered for precision steam and water flow measurement in high-pressure, high-temperature environments such as power plants and energy-intensive process systems. Built to comply with ASME PTC 6 and ISO 5167, it plays a critical role in validating thermal performance, optimizing efficiency, and ensuring regulatory compliance.
Ideal for superheated or saturated steam, condensate, feedwater, and makeup flows, the FPD320 nozzle is the preferred solution for turbine efficiency testing and performance benchmarking. Its design delivers stable, repeatable differential pressure across a wide range of velocities, even under harsh operating conditions.
Applications include:
- Steam turbine test sections (PTC 6)
- Thermal stage performance evaluations
- Feedwater and condensate monitoring
- Power factor correction and heat rate analysis
The FPD320’s weld-in, flanged, or pipe section configurations, paired with smart transmitter compatibility, make it a scalable, future-ready choice for utility operators, EPCs, and OEMs. When accuracy, traceability, and defensibility are critical, McMenon’s flow nozzles deliver—with durability proven across decades of global power generation service.
Typical designs per ISA 1932, long-radius, or ASME throat-tap standards. Can be installed clamped between flanges or welded into line. Handles higher flow rates than an equivalent orifice at the same design differential pressure. Compliant with ISO 5167:2003 (except ASME variant) and available in designs for either clamping between flanges (within the bolt circle) or for welding into the pipe.
| Measurement Type | Differential Pressure (DP) |
| Compliance Standards | ASME PTC 6, ISO 5167, ISA 1932, BS 1042 |
| Design Variants | ISA 1932 Nozzle, Long Radius Nozzle, ASME PTC 6 Nozzle |
| Applications | Superheated/Saturated Steam, Feedwater, Condensate, High-Velocity Gases & Liquids |
| Beta Ratio Range | 0.25 to 0.8 (application-dependent) |
| Accuracy | Typically ±1% (system dependent) |
| Repeatability | ±0.2% |
| Discharge Coefficient | ~0.98 (varies with geometry and installation) |
| Velocity Capability | Up to 55% higher than orifice plates |
| Line Size Range | 2″ to 24″ (custom sizes available) |
| Installation Types | Flanged, Weld-in, or integrated in Metering Pipe Sections |
| Pressure Rating | Up to 400 bar (based on flange rating and material) |
| Temperature Range | Up to 600°C (material dependent) |
| Material Options | Carbon Steel, Stainless Steel, Duplex, Inconel, other alloys on request |
| Typical Industries | Power Generation, Refining, Chemical, Utilities, Process Industries |
| Transmitter Integration | Compatible with all major DP transmitters (Yokogawa, Emerson, ABB, etc.) |
Ideal for measuring flow of steam or high-speed fluids (e.g. boiler outlet steam, feedwater tests) where longevity is crucial. Commonly used in power plant steam flow tests and other high-velocity flow applications, as it resists erosion and maintains accuracy over time.
Applications include:
- Steam turbine test sections (PTC 6)
- Thermal stage performance evaluations
- Feedwater and condensate monitoring
- Power factor correction and heat rate analysis
Standard DP flow element sizing tools apply; nozzle sizing per ISO 5167 and ASME can be performed with vendor software or calculations (no special tool unique to nozzle).