JC020 Integral Orifice Plate Flow Transmitter
JC020 Integral Orifice Plate Flow Transmitter is the high ratio of measuring range for differential pressure flow equipment, which is equipped by standard orifice plate and differential pressure transmitter (or temperature transmitter, pressure transmitter) and flow totalizer. It can measure the flow rate for gas, steam, liquid and natural gas.
- Introduction
- Parameters
- Model
- How to Order
- Video
JC020 Integral Orifice Plate Flow Transmitter
JC020 Integral Orifice Plate Flow Transmitter is the high ratio of measuring range for differential pressure flow equipment, which is equipped by standard orifice plate and differential pressure transmitter (or temperature transmitter , pressure transmitter) and flow totalizer . It can measure the flow rate for gas ,steam , liquid and natural gas.
Working Principle
When the fluid filled in the pipe is flowing through the throttling device in the pipe, the flow will shrink partly at the throttling device, hence the flow velocity increases while the static pressure decreases to form the differential pressure at the back and forth of the throttling device. The bigger the flow rate, the larger the differential pressure, so we can measure the flow according to differential pressure. This measuring method is based on Fluxion Continuity Equation (Mass Conservation Law) and Bernoulli’s Principle (Energy Conservation Law). The differential pressure is related to flow, as well as other factors. For example, when the forms of throttling devices or physical properties (density, viscosity) of the fluids in the pipe are different, the differential pressure generates at the same flow rate is different.
Technical Parameter for JC020 Integral Orifice Plate Flow Transmitter
Technical Parameter
1. Nominal Diameter: 15 mm ≤DN≤1200mm
2. Nominal Pressure: PN≤10MPa
3. Working temperature :－50℃≤t≤550℃
4.Turn-Down ：1:10， 1:15
5. Accuracy ：0.5%，1%
Characteristic
1.Easy structure , stable and long life , low cost
2. Orifice calculation is adopted international standard
3.Wide Application , full single-phase flow and part mixed-phase flow can be applied .
4.Standard orifice don’t need calibrate and can be applied
5.Completed integral orifice plate is easy for installation , it can directly Connect to differential pressure transmitter and pressure transmitter without pressure connecting pipe .
6. It can be used for high temperature more than 200 °C
7. High Stability is better than 0.1%FS/ year
8. High Static pressure :40MPa
9.don’t affect by temperature and static pressure ，Resistance to high over pressure
10.Continuous wokring 5 years without any calibration
Smart Model Characteristic
1.Adopted imported monocrystal line silicon smart differential pressure transmitter
2.High accuracy , perfect self-diagnostic function
3.Its measuring range can be modified through programming
4.It can display cumulative flow rate , instant flow rate , pressure , temperature at the same time .
5.It can dynamically compensate the temperature and pressure online , can also diagnose and set the measuring range by itself.
6.Have various type communication interface
7.High stability
8.Wide Range ability >10:1
Model Selection for JC020 Integral Orifice Plate Flow Transmitter
| Model | Code | Descriptions |
| JC020 | Orifice plate and flange | |
| Orifice Plate Type | C | Concentric sharp edge orifice plate |
| Nominal Pipe Size | 015 | Pipe diameter 15mm (1/2″) |
| 020 | Pipe diameter 20mm(3/4″) | |
| 025 | Pipe diameter 25mm(1″) | |
| 040 | Pipe diameter 40mm(1-1/2″) | |
| 050 | Pipe diameter 50mm(2″) | |
| 065 | Pipe diameter 65mm(2-1/2″) | |
| 080 | Pipe diameter 80mm(3″) | |
| 100 | Pipe diameter 100mm(4″) | |
| 125 | Pipe diameter 125mm(5″) | |
| : | ||
| 900 | Pipe diameter 900(35″) | |
| 1000 | Pipe diameter 1000mm(40″) | |
| Pressure Rating | G | 0.25-32Mpa |
| J | JIS 10K RF/JIS 20kRF/JIS 30k RF | |
| A | ANSI 150 LB RF/300LB/600LB/900LB/1500LB | |
| Plate Material | P1 | 304SS |
| P2 | 316SS | |
| O | Others | |
| Flange Material | F1 | C.S |
| F2 | 304SS | |
| F3 | 316SS | |
| N | Without flange | |
How to order for JC020 Integral Orifice Plate Flow Transmitter
| Throttle Device Parameters Table | Project NO. | |||||||||
| Table NO. | ||||||||||
| Page. Total. | ||||||||||
| Data | Calculation | |||||||||
| Operation conditions | Fluid name | Throttle element type | ||||||||
| Operating temperature ℃ | Pressure taking type | |||||||||
| Operating pressure MPa | Select scale | |||||||||
| Flow | Liquid kg/h | Max. | Select differential pressure kPa | |||||||
| Steam kg/h | Nor. | Min. flow limit | ||||||||
| Gas(standard) Nm3/h | Min. | Reynolds number Re
(normal flow) |
||||||||
| Liquid kg/m3 | Area expansion correction
coefficient Fa |
|||||||||
| Steam kg/m3 | Expansion coefficient ε | |||||||||
| Gas (standard) kg/m3 | Flow coefficient α | |||||||||
| Uncertainty % | ||||||||||
| Permanent pressure loss Pa | ||||||||||
| Diameter ratio βt | ||||||||||
| Hole diameter of throttle mm
element or segmental height |
||||||||||
| 1/4 circle radius or
eccentricity degree mm |
||||||||||
| Operating density kg/m3 | Throttle device standard | |||||||||
| Dynamic viscosity mPa.s | ||||||||||
| Kinematic viscosity mm2/s | Specification | |||||||||
| Relative humidity (Φ) | ||||||||||
| Compression coefficient (Z) | Model | |||||||||
| Isentropic exponent (cp/cv) | Normal diameter (DN) | |||||||||
| Allowable pressure loss Pa | Normal pressure (PN) MPa | |||||||||
| Pipe | Nominal diameter (DN) | Flange standard | ||||||||
| Pipe instrument number | Flange inner diameter mm | |||||||||
| Outside diameter/inner diameter mm | Structural length mm | |||||||||
| Material | Pressure tape size mm | |||||||||
| Pressure tape location | ||||||||||
| material | Throttle element | |||||||||
| Flange | ||||||||||
| Bolt | ||||||||||
| Nut | ||||||||||
| Gasket | ||||||||||
| Remark | ||||||||||
