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[China]
Trade Verify
Address: Rm. 1203-1, Bldg. B, Xian Xinsilu International E-Commerce Industrial Park, No. 9, Gangwu Road, Int'l Port District
Contact name:Alice
Xi'an Yunyi Instrument Co., Ltd |
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Verified Suppliers
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Description Piston type dead weight pressure tester gauge
weights
Deadweight tester (DWT) is a calibration standard which uses a
piston cylinder on which a load is placed to make an equilibrium
with an applied pressure underneath the piston.Deadweight testers
are so called primary standards which means that the pressure
measured by a deadweight tester is defined through other
quantities; Length, mass and time.Typically deadweight testers are
used in calibration laboratories to calibrate pressure transfer
standards like electronic pressure measuring devices.
Struture principle Piston type dead weight pressure tester gauge weights
Measuring instrument of pressure gauge is the application of static
pressure balance principle: namely the piston itself and in the
special weight weight (G) on the piston effect on the piston area
(S) produced by the pressure (P) and hydraulic pressure vessel
pressure generated by the phase equilibrium, to determine the
pressure of checking instrument size: P = G/S In type G = mg (m:
method of code quality, G: acceleration of gravity) products
factory use standard gravitational acceleration G value. When users
are using g value shall be determined according to the local
acceleration of gravity, and according to the calculated value
correction weight g weight. Pressure gauge is by checking pump
(pressure system) and the piston part (pressure) measurement system
of two parts.
| model | pressure rang | farmar configuration | remark |
| YU-6 | 0.04-0.6Mpa | 0.01Pa 6 | Farmar can be made according to customer's special requirements |
| 0.05MPa 10 | |||
| YU-60 | 0.1-6Mpa | 0.1MPa 4 | |
| 0.5MPa 11 | |||
| YU-600 | 1-60Mpa | 1MPa 4 | |
| 5MPa 11 |
Features Piston type dead weight pressure tester gauge weights
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.
Model Piston type dead weight pressure tester gauge weights
| 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, The acid value of less than 0.05 mg KOH/ G | sebacate 20 ℃ kinematic viscosity 20-25 centistokes, acid value is not greater than 0.05 mg KOH/ G | ||||||
