Description Pressure Switch Pressure Gauge Verifier Hydraulic
Pressure Source
YS series Piston DWT is a high accuracy high reproducibility and
high reliability of the standard pressure measuring instruments
based on Pascal's law and the principle of hydrostatic equilibrium
produced. Mainly used for measuring room, laboratory and production
as part of scientific experiments, or use a reference pressure.
calibration standard which uses a piston cylinder on which a load
is placed to make an equilibrium with an applied pressure
underneath the piston.
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 ℃.
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.
Over 25MPa, Ensure the high sensitivity of the pressure gauge, we
use the octyl sebacate as transmission medium
The pistons and piston barrels are ground by precision, their
roundness errors and gaps are very small. The working medium adopts
sebacic acid ester with low viscosity, which greatly increases the
duration of the piston rotation, correspondingly reduces the
piston's descent speed, and improves the piston identification.
The effective area of the piston is relatively small, so the total
mass of the weight is relatively light and the labor intensity is
saved.
The tray is directly loaded to avoid additional vertical forces,
reducing the weight center of gravity, and correspondingly reducing
the lateral additional error of the weight. Make the piston turn
more smoothly.
The working position of the piston is monitored by a displacement
sensor, which has the advantages of being sensitive, eye-catching
and accurate. Weights have been corrected for pressure deformation
coefficients and local gravitational acceleration.
When the inspection is performed, only the piston measurement
system is required to be inspected, which is small in size and
light in weight.
Detailed Images Pressure Switch Pressure Gauge Verifier Hydraulic Pressure Source
Features Pressure Switch Pressure Gauge Verifier Hydraulic Pressure Source
The piston and the piston barrel are made of alloy steel, tungsten
carbide and other materials with high strength, high hardness and
low temperature linear expansion coefficient. The temperature
expansion coefficient is small and the deformation is small, thus
ensuring that the effective area of the piston has a small periodic
rate of change to ensure the piston pressure. With extremely high
sensitivity.
Application Pressure Switch Pressure Gauge Verifier Hydraulic Pressure Source
Typically dead weight testers are used in calibration laboratories
to calibrate pressure transfer standards like electronic pressure
measuring devices
Datasheet Pressure Switch Pressure Gauge Verifier Hydraulic Pressure Source
Item | | 0.6MPa | 6MPa | 25MPa | 60Mpa |
Range | MPa | 0.04-0.6 | 0.1-6 | 0.5-25 | 1-60 |
Up limit of measurement | MPa | 0.6 | 6 | 25 | 60 |
Down limit of measurement | MPa | 0.04 | 0.1 | 0.5 | 1 |
Piston nominal area | cm² | 1 | 0.5 | 0.1 | 0.05 |
Chassis and piston | Nominal mass kg | 0.4 | 0.5 | 0.5 | 0.5 |
Generatedpressure MPa | 0.04 | 0.1 | 0.5 | 1 |
Special weight | Nominal mass kg | 0.1;0.5 | 0.5;2.5 | 0.5;2.5 | 0.5;2.5 |
Generatedpressure MPa | 0.01;0.05 | 0.1;0.5 | 0.5;2.5 | 1;5 |
Number | 6;10 | 4;11 | 4;9 | 4;11 |
Both ends of the lock nut | | M20×1.5 | M20×1.5 | M20×1.5 | M20×1.5 |
Weight | kg | 35 | 60 | 55 | 90 |
Working liquid | 25#Transformer oil and aviation kerosene mixed (4.39:1).20 ℃
Kinematic viscosity 9 ~ 12 centistokes, | sebacate 20 ℃ kinematic viscosity 20-25 centistokes, acid value is
not greater than 0.05 mg KOH/ G |
The acid value of less than 0.05 mg KOH/ G |