First, the orifice flowmeter overview
The standard orifice plate is the most adaptable product in the throttling device. It is easy to install and meets the requirements of ISO5167 or GB/T2624 in all aspects. The advantages of the throttling device are quite large, but in some applications, the laying pipeline on the site has a large workload, which is prone to blockages, leakage, etc. The current technology is developing rapidly, and with the increase of user demand, some smaller volume and performance. A more stable differential pressure meter has emerged, which has also led to the development and utilization of integrated throttle flow meters (annular orifice plates, orifice plates, nozzles).
Second, technical parameters
1. Nominal pressure: ≤10MPa (≥20MPa can be welded);
2, the nominal diameter: 15mm ~ 1000mm;
3, the ambient temperature: -20 ° C ~ 55 ° C;
4, medium temperature: -20 ° C ~ 300 ° C;
5, function settings: according to user needs to select relevant instruments, to achieve signal remote transmission, intelligent compensation, display flow or mass flow, volume flow and so on.
6, pressure-receiving method: corner joint (ring room or separate drilling) pressure, flange pressure, DD / 2 pressure;
7. Accuracy: ±1.0%;
8, the scope of adaptation:
● Opening diameter d (mm): d ≥ 12.5 (standard orifice plate);
● opening diameter ratio β: 0.1 ≤ β ≤ 0.75;
● Ray number range ReD: 0.1 ≤ β ≤ 0.75, 10 7 ≥ ReD ≥ 5000 and ReD ≥ 107β2D; D is expressed in mm.
Third, the main features
1. The structure is simple, firm and easy to install;
2, can measure the flow of various gases, steam and liquid, and adapt to a wide range;
3, no real-flow calibration, moderate accuracy;
4, the accessories are complete, can design and calculate for the user;
5. Equipped with intelligent differential pressure transmitter to realize temperature, pressure compensation or fieldbus communication mode;