A+X orifice plates are designed and manufactured in accordance with ISO 5167-2. It is the most commonly used DP flowmeter. 

Product Highlights

●  The standardized orifice geometry ensures measurement accuracy.

●  A reliable and widely used differential pressure flowmeter globally.

●  Precision machining ensures the quality of the orifice flowmeter.

●  Simple and robust structure, no moving parts.

Standard Specifications

●  Pipe size: 2 "~120" (DN 50mm~1000 mm)

●  β value range: (0.1≤ β ≤0.75)

●  Reynolds number range: ReD ≥5000, and ReD ≥170β2D

●  Uncertainty: according to ISO5167-2:2003, the uncertainty is ±0.75%

●  Accuracy: up to ±0.5%

●  Repeatability: ≤0.15%

●  Permanent pressure loss: 42%~99% of differential pressure

●  Operating temperature: -196°C≤ T ≤700°C

●  Working pressure: up to CL2500 (42MPa)

●  Straight run requirement: before 6D-44D, after 4D-8D, depending on β

●  Pressure tapping specifications: 1/4" NPT or PSW; 1/2" NPT or PSW; 1" or 2" flanged tapping

●  Standard material: 304, 316, 321

●  Customized materials: Hastelloy C-276, Monel 400, Inconel, more available upon request.

Orifice Plate Flow Element

Orifice throttling element is the core measuring element of orifice flowmeter

Wafered Type AOFF

●  The orifice throttling device is wafered with orifice flange and its accessories. The orifice throttling device can have flange tapping or corner tapping.

●  Most consistent with the traditional structure.

●  Avoid the problem of mismatch between flange and orifice element design on site.

Pipe Segmented Type AOHF

●  The orifice throttling device is connected with the pipe segment. The pressure tapping can be done by ring chamber.

●  The pressure equalizing ring design reduces the influence of the flow field on the differential pressure signal, and the measurement accuracy is higher.

●  High measurement accuracy.

●  Flange connection on site.