The Dwyer Instruments PE-P-1 is a high-performance orifice plate flowmeter engineered for precise differential pressure measurement in demanding industrial environments. As a true primary element, it integrates a unique holder ring with metering taps and gaskets, providing a complete solution for flow measurement without the need for additional components. This flowmeter is designed to meet or exceed ASME, AGA, and ISO standards, ensuring reliable and accurate performance across a wide range of applications.
Key Features & Highlights
- One-Piece PVC Construction: Corrosion-free and weather-resistant, ideal for harsh industrial settings.
- Integral Metering Taps: Built-in 1/4 female NPT taps simplify installation and ensure accurate pressure readings.
- True Primary Element: Includes all necessary components for differential pressure measurement, reducing installation complexity.
- High Accuracy and Stability: Orifice plate thickness of 1/4 inch provides greater stability and long-term reliability.
- Flame Retardant: Meets safety requirements (without factory gaskets) for enhanced operational safety.
- Low Friction Design: Minimizes wear and extends service life.
- Versatile Applications: Suitable for air and most gases, with line sizes from 1/2 to 24 inches.
Applications
The PE-P-1 is ideal for use in chemical processing, HVAC systems, water treatment, and other industrial processes where accurate flow measurement is critical. Its robust construction and compliance with industry standards make it a dependable choice for engineers and plant operators seeking efficiency and cost-effectiveness.





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