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QDYLZ100-NZ Liquid-Filled Vibration Resistant Pressure Gauge
QDYLZ100-NZ uses a liquid-damped mechanical movement to suppress pointer oscillation under continuous vibration. The stabilized pointer remains easier to read around pumps, motors and other vibrating industrial equipment, supporting clearer on-site pressure monitoring during long-term operation.
QDYLZ100-NZ is designed for pressure points exposed to repeated pressure fluctuation and short-duration pressure spikes. Its mechanical pressure system supports 120% F.S. continuous overload and 150% F.S. transient pressure spikes, helping maintain dependable indication in demanding operating conditions.
QDYLZ100-NZ operates through a purely mechanical Bourdon tube and movement system, requiring no external power or signal wiring. With no electronic measurement circuit inside, it provides straightforward local pressure indication and remains immune to electromagnetic and radio-frequency interference.
Working Principle Diagram
Temperature Error Coefficient:≤±0.04% F.S./℃ (deviation from 20℃ reference temperature)
Hysteresis Error:≤0.5% F.S.
Repeatability Error:≤0.3% F.S.
Pressure Pulsation Resistance:Withstands frequent cyclic pressure fluctuation; no accelerated gear wear or pointer drift
Safe Continuous Overload:120% of full scale; no permanent zero shift or structural deformation
Transient Pressure Spike Tolerance:150% of full scale; no damage from water hammer and short-duration overpressure events
Bourdon Tube Burst Pressure:≥300% of full scale
Cyclic Fatigue Life:≥100,000 full pressure cycles under vibration; no leakage or calibration drift
Movement Wear Resistance:Hardened gear train with liquid lubrication; 3× longer service life than standard dry-type movements
Zero Recovery Performance:≤0.2% F.S. zero offset after full-scale overload release
Dimension Chart