Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of general purpose industrial pressure transducers in China. Welcome to buy high quality general purpose industrial pressure transducers at competitive price from our factory. We also accept customized orders.
Products Description
| Parameter | Specification |
|---|---|
| Product | HNP20-B |
| Accuracy | ±0.25%FS;±0.5%FS |
| Measurement Range | 0~150MPa (optional) |
| Electrical Connection | Aviation electrical connectors, M12×1 connectors (other special types can be customized). |
| Medium Temperature | -40~125℃ |
Please see the Specifications for more details.
Typical Applications
1. Hydraulic and Engineering Machinery Systems
These applications place extremely stringent requirements on the overload tolerance and cycle life of pressure sensors. The HNP20-B's 3x overload and 5x burst pressure design makes it clearly applicable to the hydraulic systems of excavators, loaders, and concrete pump trucks. Its tens of millions of pressure cycle life directly corresponds to the actual working conditions of construction machinery, characterized by frequent start-stop cycles and drastic load fluctuations, reducing maintenance and replacement frequency.
2. Process Control and Industrial Automation
Pipeline medium pressure monitoring in industries such as chemical, pharmaceutical, and energy requires sensors with medium isolation capabilities and long-term stability. The all-stainless steel integrated structure eliminates the risk of leakage due to aging seals, making it suitable for water, oil, gas, and some corrosive media. An accuracy of ±0.25%FS and a stability of ≤0.15%FS/year meet the closed-loop regulation requirements of process control; a response speed of ≤2ms is suitable for rapid pressure change monitoring scenarios.
3. Coal Mines and Explosion-Proof Environments
The circuitry meets intrinsic safety standards and is EMC certified. Combined with an all-metal sealed structure, it is suitable for environments with risks of gas and coal dust explosions, such as the electro-hydraulic control system of coal mine hydraulic supports. Its vibration resistance of 20g and impact resistance of 200g also meet the vibration requirements of underground equipment

Why Choose ?
Withstands high-pressure impact: 3 times overload, 5 times burst pressure, seamless integrated machining, resistant to water hammer and peak pressure.
• Maintains accuracy across the entire temperature range: Temperature drift ≤ ±0.015%FS/°C within the range of -40~125℃, no recalibration required in all seasons.
• No leakage risk: All-metal seal, no O-ring aging issues, suitable for various compatible media.
• Stable operation under complex conditions: CE & ISO certified, IP65, vibration resistant to 20g, direct mounting on pump units and compressors requires no additional protection.
• Tens of millions of cycle life: Actual measured >10 million cycles, maintenance-free for several years in continuous production environments.
Key Advantages
- Multiple connector options available
- Customization supported
- Diverse signal outputs
- Fault-tolerant protection

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HNP20-B Mid-Body Pressure Sensor |
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Specific Parameters |
Value / Description |
|
Measurement Principle |
The core of the pressure sensor is to convert the pressure physical quantity into an electrical signal. The external pressure acts on the sensitive element, causing deformation, and the electrical characteristics such as resistance and capacitance of the element change accordingly. After detection and amplification by the circuit, an electrical signal proportional to the pressure is output, thus achieving accurate measurement and transmission of pressure. |
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Liquid Contact Material |
17-4PH Martensitic Precipitation-Hardening Stainless Steel/316L Stainless Steel |
|
Pressure joint |
Various connector specifications available, supports customization of special types of connectors |
|
Accuracy |
±0.25%FS; ±0.5%FS |
|
Measurement Range |
0~150MPa selectable |
|
Electrical Connection |
Aerospace electrical connectors, M12X1 connectors, and other optional support for custom special electrical connection types |
|
Medium Temperature Range |
-40~125°C |
|
Ambient Temperature Range |
-40~85℃ |
|
Communication |
HART (Optional) |
|
Output |
4~20mA/0~10V/RS485 |
|
Certification |
CE, ISO9001, SIL |











