The Dwyer Instruments PE-P-3 is a precision orifice plate flowmeter engineered for accurate differential pressure measurement in a wide range of industrial applications. This primary element features a one-piece PVC construction with a unique holder ring that integrates metering taps and gaskets, providing a complete solution for flow measurement. Designed to meet or exceed ASME, AGA, and ISO standards, the PE-P-3 delivers reliable performance and long-term accuracy.
Key Features & Highlights
- One-piece PVC construction for corrosion resistance and durability
- Built-in metering taps (1/4″ female NPT) for easy installation
- Standard corner tap configuration for consistent pressure readings
- Simplified installation with standard flanges
- Proven accuracy and energy efficiency across a wide range of applications
- Flame retardant (without factory gaskets) for enhanced safety
- Low friction design minimizes wear and extends service life
- Orifice plate thickness of 1/4″ for greater stability
Applications
The Dwyer Instruments PE-P-3 is ideal for use in HVAC systems, water treatment, chemical processing, and other industrial processes where accurate flow measurement is critical. It can be used with air and most gases, and is suitable for line sizes from 1/2 to 24 inches. Whether replacing conventional orifice plates or other primary differential producers, the PE-P-3 offers efficiency and cost-effectiveness.





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