Orifice Plate DP Meters for Natural Gas and Steam

Why orifice plates persist

• No moving parts, simple and proven for high pressure and temperature
• Accepts the widest range of line sizes and flanges
• Cost-effective when repeatability matters more than wide turndown

How it works

A plate with a concentric bore creates a differential pressure across the flange taps. The DP transmitter applies the square-root extraction, and with pressure and temperature compensation the flow computer outputs mass flow for gas or steam.

Specifying the run

1. Standards: sizing to ISO 5167 with 100D–0.5D taps where straight-run is available.
2. Straight pipe: 20D upstream, 5D downstream for uncertainty within ±1.5%.
3. Materials: 316/304 plate, options for corrosive or abrasive media; choose condition-tap or flange-tap by your piping.

Smart transmitter advantages

A multivariable transmitter measures DP, static pressure and temperature in one device, logging compensated flow and giving remote diagnostics — ideal for regulator and custody stations.

Send us pipe size, maximum flow and inlet pressure; we return the orifice bore and sizing sheet by return.