Differential Pressure Flow Meter Supplier

Balanced orifice | Cone flow meter | Standard orifice plate | Standard nozzle | Averaging pitot tube flow meter

When the fluid is transported in the pipeline, it often flows through various valves, elbows, tees, reducers and other obstruction parts. When the fluid passes through these obstruction parts, various disturbances will occur, which will affect the normal measurement. Make the flowmeter bring a fixed additional error on site installation, especially the traditional differential pressure flowmeter, etc., and the new generation of balanced orifice flow sensor cleverly integrates rectification and measurement, and has an obvious stable flow field. It can minimize the additional error and make the actual use accuracy close to the theoretical calculation accuracy

Differential Pressure Flow Meter

ATM-PH Series Balanced Orifice


Nominal passage: 10m≤DN≤3000 mm


Accuracy grade: ±0.5%, ±1.0%


Repeatability: ≤0.1%


Turndown ratio: 1: 10 or 1:15


Requirements for installing straight pipe sections: front 0.5D and rear 0.5D


Medium operating pressure: ≤25MPa


Permanent pressure loss (Pa): ≤0.31pV2 (ρ bulk density kg/m3 V average flow rate m/s)


Measurable two-way flow



ATM Series - Cone Flow Meter


Nominal diameter: 50mm ≤ DN ≤ 1800mm


Nominal pressure: PN ≤ 32Mpa


Reynolds number range: 8×103 ≤ 107


Accuracy grade: 0.5 grade, 1 grade


Repeatability: ≤ 0.1%


Length of straight pipe: Front straight pipe is 1 ~ 3D, rear straight pipe is 3 ~ 5D


The pressure loss is small. For the same value, the pressure loss is 1 / 3-1 / 5 of the orifice plate.


The output of negative pressure side is stable, the fluctuation is small and the stability is good.


Rangebility: 1:15



ATM Series - BK Standard Orifice Plate


Nominal diameter: 50 mm ≤ DN ≤ 1200 mm, if DN > 1200 mm, real flow calibration is required.


Aperture ratio β: 0.20 ≤ β ≤ 0.75


Reynolds number range: when 0.20 ≤ β ≤ 0.45, 5000 ≤ ReD

When 0.45 ≤ β ≤ 0.75, 10000 ≤ ReD


Nominal pressure: PN ≤ 16MPa


Accuracy: Grade 1



ATM Series BP Standard Nozzle


Nominal diameter: 50mm ≤ DN ≤ 500mm


Nominal pressure: PN ≤ 32Mpa


Reynolds number range: 70000 ≤ red ≤ 107 when 0.30 ≤ β ≤ 0.44

When 0.44 ≤ β ≤ 0.8, 20000 ≤ red ≤ 107


Aperture ratio: 0.30 ≤ β ≤ 0.80


Accuracy: Grade 1



ATM-B Averaging Pitot Tube Flow Meter


Nominal pressure: PN≤25MPa


Temperature range: 0°C--450°C


Nominal pass: DN25--DN3000


Accuracy class: 1.0; 1.5; 2.5


Repeatability: ≤0.1%