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Kaifeng Instrument LJG Industrial Sationary Pipe Prover
Product Overviews
Pipe provers are used to verify or calibrate the measuring feature of positive displacement or velocity flowmeters in closed pipeline under working condition.The Bi-Directional Pipe Prover has proven itself over and over again as one of the most reliable means to verify meter readings and establish meter factors.
Our LJG Type Bidirectional Provers are individually designed in accordance to the space available, the liquid product and the flow rates of the meters to be proved, providing automated, on-site calibration for every flow metering installation, delivering sustainable measurement, appropriate compliance to accuracy and repeatability requirements, and reduced fiscal risk.
Features and Functions
● It can prove or calibrate positive displacement type or velocity type flowmeters outputting pulse signal.
● As a movable flow proving centre,it can prove or calibrate the fowmeter with actual flow under the working condition;the error aroused by the different working condition and proving condition is overcome.
● It can carry out a real time dynamic leak hunting to the conversion valve of the pipe prover to satisfy the requirement of the international MAP.
● There needs no start and stop of the flowmeter in the course of proving or calibration;the error caused by the start and stop of the flowmeters is eliminated.
Technical Parameters
| Product Name | Volumetric Pipe Prover For Calibration Erification |
| Type | Stationary;Movable |
| Medium | Water;Crude Oil;Refined Petroleum Products |
| Accuracy | ±0.05%; |
| Repeatability | ≤0.02% |
| Nominal Diameter | DN80~DN350(Vehicle Mounted Movable Pipe prover) |
| DN80~DN600(Stationary Pipe Prover) | |
| Nominal Pressure | PN1.6~6.3MPa; |
| Flow Range | 5~600m3/h(Vehicle Mounted Movable Pipe prover) |
| 2~3000m3/h(Stationary Pipe Prover) | |
| Medium Temperature | 15°C~85°C |
| Medium Viscosity | 0.5~500mPa•s |
| Power Supply | 380V.AC.50HZ (Three-phase Four-wire system) |
| Range Ratio | 40:1(Uni-directional) |
| 20:1(Bi-Directional) | |
| Explosion Proof | Flame-proof Type, ExdIIBT4; |
| Ambient Temperature | 5~45°C |
Industry Applications
• Hydrocarbon and chemical processing
• Pipeline metering terminals
• Tanker and barge loading facilitites
• Refineries
• Petrochemical plants
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