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QDYLZ100-NZ Liquid-Filled Vibration Resistant Pressure Gauge

A liquid-filled, vibration-resistant 100mm pressure gauge delivering stable, power-free local monitoring with high overload capacity for pumps and pipelines.
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QDYLZ100-NZ Liquid-Filled Vibration Resistant Pressure Gauge

QDYLZ100-NZ liquid-filled pressure gauge with stable pointer under continuous equipment vibration

Stable Readings Under Vibration

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.

vibration resistant pressure gauge for pulsating pressure and transient pressure spikes

Built for Pulsating Pressure Conditions

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.

mechanical vibration resistant pressure gauge requiring no external power or signal wiring

Reliable Pressure Reading Without Power

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

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Technical Specifications

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

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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