JY25 Piston Dead Weight Tester Compliant with National Standard JJG59-2007 for Precision Calibration

Key Features & Advantages

• Robust Tungsten Carbide Core
  Manufactured with ultra-hard, low thermal expansion tungsten carbide for exceptional wear resistance and stable performance across varying ambient temperatures (20±5°C).

• Precision Weight Loading System
  Low-center-of-gravity design with direct weight application ensures smooth piston movement, minimal pressure fluctuation, and highly accurate measurement results.

• High-Viscosity Performance
  Low-viscosity isooctyl sebacate medium enables superior sensitivity, particularly in high-pressure applications exceeding 25 MPa.

• Intelligent Monitoring
  Non-magnetic stainless steel weights combined with integrated piston displacement sensors provide real-time position tracking and clear visual feedback.

• User-Friendly Operation
  Wide measuring range with precisely engineered pressure regulation allows effortless operation across all pressure levels, including maximum capacity of 250 MPa.

Structural description

Typical Applications

This tester is widely used for the calibration and testing of:

Digital Pressure Gauges

Precision Pressure Gauges

Pressure Transmitters

And other pressure instruments.