1.Basic principles
Pressure is defined as the ratio of a force over a certain area to that area, and the core component is a piston system component of very high accuracy that generates the pressure required for measurement by loading weights on the component. Piston cylinder and piston rod are made of tungsten carbide, this material has very low pressure deformation and thermal expansion coefficient, to ensure that the cross section of the piston has a good linearity, the piston system is more durable, coupled with the company designed the anti-break rod system, disassembly more convenient and easy, so that the accuracy and operability of the instrument are very good.
The instrument directly measures the pressure by definition (P=F/S), and the piston system uses high-quality tungsten carbide material, so that the instrument has a very small measurement uncertainty and a long-term stability of more than 5 years.
2、Piston manometer operating environment and selection parameters
2.1、Operating environment: ambient temperature：（20±1）℃
Relative humidity: Constant greenhouse below 85%
There should be no mechanical vibration affecting the metrological performance when used
2.2、Selection parameters of piston pressure gauge
NYJ-600A piston type manometer
| Model number | NYJ-600A | Measuring range | (1~60)MPa | Piston core material | |
| Accuracy class | 0.05/0.02 | Platform size (length * width * height)mm | 610*420*230 | Piston rod | Piston cylinder |
| Total weight (Kg) | 20 | Platform body material | High quality steel material | Tungsten carbide | Tungsten carbide |
| Working medium | Di-(2-ethylhexyl) sebacate | ||||
Weight configuration table
| Specification (MPa) | Quantity (block) | Size Diameter medium (mm) | Weight (Kg/ block) | material |
| 0.5 | 11 | 225 | 2.5 | Stainless steel |
| 0.1 | 4 | 135 | 0.5 | Stainless steel |
NYJ-600B piston type manometer
| Model number | NYJ-600B | Measuring range | (1~60)MPa | Piston core material | |
| Accuracy class | 0.05/0.02 | Platform size (length * width * height)mm | 680*480*310 | Piston rod | Piston cylinder |
| Total weight (Kg) | 20 | Platform body material | High quality steel material | Tungsten carbide | Tungsten carbide |
| Working medium | Di-(2-ethylhexyl) sebacate | ||||
Weight configuration table
| Specification (MPa) | Quantity (block) | Size Diameter medium (mm) | Weight (Kg/ block) | material |
| 0.5 | 11 | 180 | 1.25 | Stainless steel |
| 0.1 | 4 | 108 | 0.25 | Stainless steel |
3、Functional characteristics of piston type manometer
1. Patented piston pressure system components, novel structure, anti-collision, free tool disassembly, easy to clean the piston system, replace the seal ring, convenient, fast and safe.
2. Small size, light weight, simple structure and easy operation, more suitable for use in production sites with high utilization rate, high cost performance.
3. The pressurization system is equipped with a prepressure pump, which can increase the efficiency of the regulator, and the pressurization process will be easier and faster when used together.
4. The regulator is maintenance-free, the handle design is reasonable (personalized design according to the hand posture), and the operation is more easy and convenient.
5. The oil circuit system has the function of sewage discharge, and the maintenance and cleaning process is more simple and convenient.
6. The main body is made of steel material, durable. Oil cup oil storage capacity of 400ml, can be customized to enlarge the oil cup according to customer needs, easy to calibrate a large number of sensors, the cup is equipped with oil filter device, the pipeline at the meter seat directly connected to the oil cup, through the sewage filter device, to ensure that the oil into the piston system clean, avoid dirty oil into the piston system caused by blocking and damage.
4.Relevant qualifications and certificates
1.GB/T19001-2016/ISO 9001:2015 Quality Management System Certification,
2.ZL 2018 3 0657812.2 "Piston Pressure Detection Device" design patent certificate
3.ZL 2018 2 1937109.8 "Pressure gauge Piston Assembly and Piston type pressure gauge" utility model patent certificate
4.ZL 2018 2 1956666.4 "Piston type pressure gauge" utility model patent certificate
5.ZL 2019 3 0474354.3 "Left display Piston Pressure gauge" design patent certificate
6.ZL 201 3 0376500.9 "High Pressure piston pressure gauge" design patent certificate
7.ZL 2019 2 0660375.9 "Fluid Pressure gauge Piston Assembly and Piston type pressure gauge" utility model patent certificate