Orifice Plates, Restriction Orifice Unions & RTJ Plate Holders

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We produce Series 500 Universal Orifice Plates, Series 520 Paddle Type Plates, Series 560 and 590 Ring Type Joint (RTJ) Holder Plates, and Restriction Orifice Unions that meet or surpass AGA, ISA, ANSI, ASME, API, and AWWA standards. Our stock includes plates in 304 & 316 stainless steels, with thickness options of 1/8" and 1/4".

NOTE: Custom manufacturing is available for plates in any material and thickness. Additionally, our in-house team of professional mechanical engineers can provide bore sizing calculation services for an extra fee if needed.

Series 500 Universal Plates

Series 520 Paddle Type Plates

Series 560 & 590 RTJ Plate Holders

Restriction Orifice Unions

Uses for Orifice Plates:

Flow Measurement. Orifice plates are utilized for measuring the fluid flow rate within pipelines. By creating a constriction in the flow path, they cause a pressure drop across the plate, which can be correlated with the flow rate using Bernoulli's equation or other flow equations.

Cost-Effectiveness. They are relatively simple and inexpensive compared to other flow measurement devices.

Ease of Installation. Once installed, orifice plates are easily integrated into pipelines and demand minimal maintenance. If needed, they can be swiftly replaced.

Compatibility. Orifice plates can be used with a wide range of fluids including liquids, gases, and steam. They are suitable for various industries such as oil and gas, chemical processing, water treatment, and HVAC.

Standardization. The American Petroleum Institute (API) and the International Organization for Standardization (ISO) have established standardized guidelines for orifice plates.

Calibration. Calibration of orifice plates enhances the precision of flow measurement.


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