Orifice Plates

Rosemount™ DP (Differential Pressure) Flow orifice plates offer accurate, reliable flow measurement for various industries ensuring optimal performance.​

Orifice Plate Introduction

Orifice Plate Introduction

Rosemount provides a comprehensive portfolio of orifice solutions to meet diverse flow measurement needs. The 4-hole compact conditioning orifice technology requires only 2 diameters of straight run and eliminates impulse piping for a safe and highly accurate measurement. For applications requiring compliance, the single-hole orifice delivers precise measurements that align with recognized standards such as ISO 5167, ASME MFC-3M, & AGA 3​.

Products

Rosemount's Orifice Portfolio

Rosemount offers a broad portfolio of orifice plates and orifice flow meters designed to meet a variety of application requirements. Explore the product offerings below to identify the solution best suited to your specific needs.

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Rosemount™ 1495 Orifice Plate

The Rosemount 1495 Orifice Plate primary element is engineered for reliable measurement performance. As the most common primary element used around the globe, this orifice plate offers a standard configuration with a square-edged concentric bore in both paddle and universal-type plates. This product is available in standard line sizes of 2 - 24 in. (50 - 600 mm) and is also suitable in high temperature and pressure applications.​

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Rosemount™ 1595 Conditioning Orifice Plate

The Rosemount 1595 Conditioning Orifice Plate primary element features a 4-hole design enabling improved accuracy in turbulent flow conditions. It requires a straight pipe run of only two pipe diameters (2D) upstream and downstream. Suitable for most gas, liquid and steam applications, this product is available in standard line sizes up to 24 in. (600 mm).​

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Rosemount™ 3051SFC Compact Orifice Flow Meter

Featuring multivariable measurements in a single device, the Rosemount 3051SFC Compact Orifice Flow Meter provides accurate flow measurement for gas, liquid, and steam. It uses a compact 4-hole conditioning plate for reliable performance, easy installation and features self-centering mechanisms for optimal accuracy. Available in line sizes up to 12 in. (300 mm), the meter operates reliably in harsh process conditions. It is engineered with built-in flow calculations for fully compensated mass flow and offers multiple communication protocols, including WirelessHART®.

Resources

Frequently Asked Questions

If you have additional questions related to Rosemount Orifice Plates, please reach out to your local sales representative.

Rosemount Orifice Plates are commonly used in various industries including oil a& gas, chemical processing, power generation, water & wastewater treatment, and HVAC systems. They are ideal for accurately measuring the flow rate of gases, liquids, and steam.

The Rosemount 1495 single-hole orifice plates are designed to meet the highest standards of accuracy and reliability. They are fully compliant with ISO 5167, ASME MFC-3M, and AGA Report No. 3.​

The 4-hole conditioning orifice technology only requires 2 diameters of straight run before and after the primary element. â€‹

Rosemount compact orifice flow meters integrate the manifold, transmitter, and orifice primary element into a single, reliable package. Designed for installation between standard flanges, they feature an integrated 3-valve to 7-valve manifold that allows for direct transmitter mounting, ensuring precise installation across a wide range of applications. The advanced conditioning technology only requires two pipe diameters of straight run upstream and downstream of the flow meter.​