Dead Weight Tester for Hydrotesting



Dead Weight Tester for Hydrotesting


Dead Weight Testers are the most accurate and stable pressure standards and are widely used in industry, academia and research institutes to calibrate pressure measurement devices like pressure transmitters, pressure gauges & hydrotesting of pipeline.



Applications:


Hydrotesting of pipeline. Measurement of pressure, calibration of pressure transmitter, pressure gauges and pressure switches.






Standard Features:

  • Accuracy : 0.015%, 0.008% of reading
  • Over All Range:10-700 bar, kg/cm2 or 100-10000 psi
  • Operating Fluid: Hydraulic Oil & Water
  • Fine least count, Extra Gauge Connector & Hose filling / priming pump

Standard Accessories:

  • 1/8", 1/4", 3/8", 1/2" BSP Adaptors
  • Instruction Manual, Spare Seals,Dust Cover
  • Set of Weights in Carry Box, Tool Bag
  • Hydraulic Fluid (1/2 Liter) & Seal Kit
  • Traceable Calibration Certificate

Operating Principle:


Fluid Pressure generated by a screw pump acts on the bottom of a vertically free floating piston. The force produced pushes the loaded free piston vertically upwards. The piston floats freely in its cylinder and the pressure in the circuit will be determined by the weights loaded on the piston divided by the effective area of the piston with corrections for value of acceleration due to gravity, air buoyancy, surface tension and datum level difference.








Materials of Construction:

  • Piston: Tungsten Carbide/HCHC
  • Cylinder: Tungsten Carbide/HCHC
  • Internals: Austenitic 300 series Stainless steel
  • Mass Set: Austenitic 300 series Stainless steel

Standard Parameters:

  • Gravity: 9.80665 m/s²
  • Temperature: 23º Celsius
  • Air Density: 1.2 kg/m³


Standard Manufacturing Program*:


Oil Operated Models

Model No. Range Least Count
HEW 109HAO/1
HEW 109HAO/2
HEW 109HAO/3
2-250 bar
2-250 kg/cm2
20-3500 psi
0.01 bar
0.01 kg/cm2
0.1 psi
HEW 201HAO/1
HEW 201HAO/2
HEW 201HAO/3
10-400 bar
10-400 kg/cm2
100-6000 psi
Standard On Request
0.05 bar
0.05 kg/cm2
0.5 psi
0.02 bar
0.02 kg/cm2
0.2 psi
HEW 202HAO/1
HEW 202HAO/2
HEW 202HAO/3
10-700 bar
10-700 kg/cm2
100-10000 psi
Standard On Request
0.1 bar
0.1 kg/cm2
1 psi
0.02 bar
0.02 kg/cm2
0.2 psi


Water Operated Models

Model No. Range Least Count
HEW 109HAW/1
HEW 109HAW/2
HEW 109HAW/3
2-250 bar
2-250 kg/cm2
20-3500 psi
0.01 bar
0.01 kg/cm2
0.1 psi
HEW 201HAW/1
HEW 201HAW/2
HEW 201HAW/3
10-400 bar
10-400 kg/cm2
100-6000 psi
Standard On Request
0.05 bar
0.05 kg/cm2
0.5 psi
0.02 bar
0.02 kg/cm2
0.2 psi
HEW 202HAW/1
HEW 202HAW/2
HEW 202HAW/3
10-700 bar
10-700 kg/cm2
100-10000 psi
Standard On Request
0.1 bar
0.1 kg/cm2
1 psi
0.05 bar
0.05 kg/cm2
0.5 psi


Download Technical Datasheet


Download Datasheet


Other Options: For motorized machines, substitute suffix 'A' with 'B'.

Eg.: If you want model HEW 109HAO/1 but with motor, ask for HEW 109HBO/1

Please contact sales@yantrika.com for any special model or range that you may need





Over 40 years of experience we'll ensure you get the best guidance.