PTC 6 Flow Nozzle Meter
Engineered Orifice Flow Meters for Flexible, Cost-Effective Flow Measurement
PFS offers orifice flow meters for reliable, economical measurement across a wide range of clean liquid, gas, and steam applications.
As one of the most widely used differential flow technologies, orifice meters offer a practical solution for many process conditions. With options such as orifice plates, flange unions, and holding block technologies, they support a range of piping arrangements while allowing for straightforward replacement and lower upfront cost.
Cost-Effective Flow Measurement
Offers an economical measurement solution with low initial capital cost for many standard clean fluid applications.
Flexible Installation Options
Multiple primary elements, union, and meter run configurations help accommodate different piping schemes and project requirements
Easy Replacement & Serviceability
Orifice-based designs support straightforward plate replacement and practical long-term maintenance.
ASME PTC-6 Flow Nozzle
± 0.25% Always Calibrated
Highest Accuracy / Repeatability
- Line Size: 4” to 28”
- Head Loss % of Differential: 60% to 85% beta dependent
- Recommended Application, THROAT Reynolds Number: Greater than 500,000
ASME Long Radius Flow Nozzle
± 2.00% Uncalibrated Uncertainty
Liquids and Gases, High-Velocity Flow
- Line Size: 2” to 24”
- Head Loss % of Differential: 30% to 85% beta dependent
- Recommended Pipe Reynolds Number: Greater than 10,000
ASME PTC 19.5 Throat Tap Flow Nozzle
± 0.70% Uncalibrated Uncertainty
High Accuracy
- Line Size: 4” to 28”
- Head Loss % of Differential: 60% to 85% beta dependent
- Recommended Application, THROAT Reynolds Number: Greater than 500,000
ISA 1932 Flow Nozzle
± 0.80% to 1.20% Uncalibrated Uncertainty
Liquids & Gases, Lower Uncertainty
- Line Size: 2” to 20”
- Head Loss % of Differential: 30% to 85% beta dependent
- Recommended Minimum Pipe Reynolds Number: Greater than 20,000
Venturi Nozzle
± 1.21% to 1.74% Uncalibrated Uncertainty
Liquids and Gases, Lower Loss
- Line Size: 2.5” to 20”
- Head Loss % of Differential: 5% to 20%
- Recommended Pipe Reynolds Number: Greater than 150,000