Xi'an Yunyi Instrument Co., Ltd
Xi'an Yunyiyibiao Instrument Co., Ltd. is a national high-tech enterprise, specializing in the R&D, production and sales of pressure transmitter,level meter, flow , temperature instrument and
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JY Series Piston Pressure Gauge Dead Weight Tester for Precision Pressure Instruments
Description of JY series dead weight tester
The JY series Pressure Calibration pump piston Deadweight tester is a cutting-edge product that has been developed in accordance with the latest national "piston gauge" test procedures (JJG59-2007). Its key components utilize a tungsten carbide material with high hardness and a low temperature coefficient of linear expansion, ensuring exceptional wear resistance and minimal deformation under pressure for extremely stable performance. The use of piston isooctyl sebacate as the working medium provides high sensitivity for pressure gauges. With the incorporation of new materials, technologies, and processes, this new piston gauge offers significantly improved technical indicators, making it ideal for testing digital pressure gauges, precision pressure gauges, pressure transmitters, pressure sensors, and other pressure instruments.
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Specifications
| Model NO | JY Series |
| Standard Pressure Range | 0.04 ~ 0.6Mpa, 0.1 ~ 6Mpa, 0.5 ~ 25Mpa 1 ~ 60Mpa, 2 ~ 100Mpa, 2 ~ 160Mpa |
| Measurement Range | 0.04 ~ 0.6Mpa, 0.1 ~ 6Mpa 5 ~ 25Mpa, 1 ~ 60Mpa |
| Accuracy | Class 0.01(±0.01%), Class 0.02(±0.02%) Class 0.05(±0.05%) |
| Medium | Transformer Oil or Transformer Oil Mixed With Kerosene |
Features
1. The piston and cylinder are made of high strength, high stiffness, and low temperature coefficient of linear expansion of the carbide grinding tungsten carbide material , with a wide range of ambient temperature , stable performance 20 ± 5 ℃.
2. The load center of gravity low, weight by Cradle applied directly to the piston, the piston smooth operation, the pressure fluctuation is extremely small, accurate indication.
3. When pressure more than 25MPa ,the medium uses a small viscosity isooctyl sebacate, thus ensuring a very high sensitivity.
4. The weights used are all non-magnetic stainless steel material.
5.The piston displacement sensor used to monitor the working position, the piston up and down stroke of ± 1.5mm, instrument display is sensitive, smart, and accurate.
6. Wide range, at the lower 1MPa, the basic error of ± 0.02% or ± 0.05%, a JY100 type manometer, capable of reaching the upper limit of the current domestic 6,60,100MPa three measuring manometer.
7. pressure regulator easy , even at 250MPa pressure could ease.
Applications
The pistons and piston cylinder is made of the carbide tungsten carbide materials which has high strength, high hardness, and low temperature , so,it has wide working temperature and stable performance of 20 + / - 5 ℃.
Random error ±0.02% or ±0.05%
The weight of the pressure gauge is made of stainless steel
The piston top and bottom moves ±1.5mm
The piston runs smoothly, the pressure fluctuation is minimal and the value is accurate.
Applications of Digital Piston pump pressure Dead Weight Tester:
Piston gauges are used to calibrate customer piston gauges and pressure sensing devices