Flow Measurement & Restriction
Orifice Plates,
Restriction Orifice Unions
& RTJ Plate Holders
We Ship Worldwide
& RTJ Plate Holders
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. 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. Our in-house team of professional mechanical engineers can provide bore sizing calculation services for an extra fee if needed.
Product Lines
Orifice Plates & Unions
USA Industries — Orifice Plate Line Sheet
Product Reference Document
Use & Benefits for Orifice Plates
- ✓Flow Measurement: Measure fluid flow rate in pipelines by constricting the flow path to create a pressure drop — flow rate can be measured using Bernoulli's equation.
- ✓Cost-Effective: Simple, inexpensive, and reliable compared to other flow devices.
- ✓Easy Installation & Maintenance: Easily integrated into pipelines with minimal upkeep and quick replacement.
- ✓Wide Compatibility: Suitable for liquids, gases, and steam across oil & gas, chemical processing, water treatment, and HVAC.
- ✓Standardized Design: Meets API and ISO guidelines for consistency and reliability.
AGA
ISA
ANSI / ASME
API / AWWA
