Orifice Plate

Orifice plates are precision-engineered flow elements used to measure fluid flow rates in pipelines. By creating a controlled pressure drop (differential pressure) as liquid or gas passes through the orifice, these plates allow for the calculation of flow velocity and volume when used in conjunction with differential pressure transmitters.

The collection includes various configurations, such as the standard Concentric Orifice Plate (Model OP) and the Carrier Ring Orifice Plate (Model CR). Concentric designs are ideal for clean liquids and gases, while carrier ring models simplify installation by integrating the plate and pressure tappings into a single assembly.

The Carrier Ring Orifice Plate features a one-piece or two-piece construction that holds the orifice plate securely between pipe flanges. This design includes integral pressure tappings, eliminating the need to drill or tap the main pipeline, which significantly reduces installation time and the risk of leaks.

These orifice plates are typically manufactured from high-grade 316 Stainless Steel (SS316). This material provides excellent resistance to corrosion and erosion, ensuring that the sharp edge of the orifice which is critical for measurement accuracy remains intact even in harsh chemical or high-velocity environments.

Orifice plates are a fundamental tool in oil and gas refining, chemical processing, water treatment, and power generation. Their robust, no-moving-parts design makes them a reliable and cost-effective solution for measuring the flow of steam, water, gases, and hydrocarbons.

HK Calibrations provides technical expertise to ensure the orifice plates are sized correctly for specific pipe diameters and flow conditions. Additionally, they offer calibration services for the associated differential pressure transmitters to ensure the entire flow measurement loop remains precise and compliant with industry standards.