orifice plate flowmeter

orifice plate flowmeterTK4100FB02FG`B11K00Standard orifice plates can be used to measure the flow rate of liquids, gases, and vapors in pipelines. The standard orifice plate is designed and manufactured according to the national standard GB/T2624-93, and verified according to the national standard JJG640-94. Standard orifice plates can use three pressure measurement methods: corner joint pressure measurement (including ring chamber pressure measurement), flange pressure measurement, or D-D/2 pressure measurement. Standard orifice plates designed, manufactured, and calibrated according to national standards do not require real flow calibration, have high accuracy, simple structure, and low manufacturing cost. However, the pressure loss is the highest among all standard throttling devices and is not suitable for situations where small pressure loss is required

TK4100FB02FG`B11K00orifice plate flowmeterWidely used in industries such as petroleum, chemical, metallurgy, and power.

TK4100FB02FG`B11K00orifice plate flowmeterorifice plate flowmeterScope of application: 1. nominal diameter: 50 mm ≤ DN ≤ 1200mm. If DN>1200 mm, real flow calibration is required. 2. aperture ratio: β: 0.20 ≤ β ≤ 0.75. 3. Reynolds number range: 5000 ≤ ReD when 0.20 ≤ β ≤ 0.45, 10000 ≤ ReD when 0.45 ≤ β ≤ 0.75. 4. nominal pressure: PN ≤ 16MPa. 5. accuracy: Grade 1 TK-KB welded typeorifice plate flowmeterStructural form: Corner joint pressure tapping method, flange pressure tapping method, D-D/2 pressure tapping methodorifice plate flowmeterInstallation requirements: 1. During installation, it should be ensured that the center of the orifice plate, flange axis, pipeline axis, and gasket are concentric, and the concentricity should not be different

TK4100FB02FG`B11K00orifice plate flowmeterExceeding 0.002D/β. 2. The positive and negative directions of the orifice plate, as well as the upstream and downstream pressure tapping flanges, should be consistent with the flow direction of the medium. The orientation of the pressure tapping holes can be determined according to the different media and the installation of the transmitter. 3. When connecting the throttling device to the pipeline, the non perpendicularity between the end face of the welding point and the pipeline axis shall not exceed 1 º. After welding, the internal weld seam should be processed to make it smooth, without welding scars and slag. 4. Before welding the pressure tapping flange to the pipeline, the pressure tapping hole on the pipeline should be drilled with the same diameter as the pressure tapping hole on the pressure tapping flange. During welding, the pressure tapping hole on the pressure tapping flange should be aligned with the pressure tapping hole on the pipeline. 5. Optional upstream and downstream straight pipe sections. 6. D-D/2 pressure tapping is supplied as a complete set, and flange connections can be directly installed