INTRODUCTION
HCDP-21 Pressure Transmitter – Diaphragm Type | HCCK High Accuracy Industrial Sensor | Silicon Piezoresistive Pressure Transmitter
- Application:Pressure,Liquid Level Measurement
- Sensor Type:Silicon Piezoresistive Sensor
- Measuring Range:0-60MPa
- Accuracy:0.1%,0.25%
- Long-Term Stability:Better Than 0.2%FS Per Year
- Medium Temperature:(-40~105)℃
- Signal Output:Two-Wire System (4-20)mA/RS485 MODBUS-RTU
- Protection Grade:Ex d [ia Ga] IIC T6 Gb
Pressure transmitter adopts imported pressure sensor as a signal measuring element, digital modular circuit design, digital signal processing technology, which make it has good anti-interference ability and signal stability.
Pressure transmitter can be widely used in the field of petroleum, chemical, steel, power, light industry, environmental protection, food, paper making, medicine and all kinds of harsh environment.
WORKING PRINCIPLE
Pressure transmitter is a device where the weak signals from pressure sensor is con- verted into standard signal output by a special control circuit.
Optional signal output have (4-20)mA HART, RS485 MODBUS, voltage output and etc.
FEATURE
Pressure transmitter adopts imported pressure sensor signal conditioning dedicated chips, high integration, high precision, and high stability.
No adjustable components, and it will not be affected by vibration. The damage rate is low, and no need for maintenance.
Standard (4-20)mA HART or RS485 communication, some models can be easily adjusted on site through buttons.
HCDP-21 Pressure Transmitter
HCCK High Accuracy Industrial Sensor
HCDP-21 Pressure Transmitter – Diaphragm Type by HCCK (Hebei Huachuang M&C Technology Co., Ltd.)
Looking for a high-accuracy diaphragm pressure transmitter that delivers stable performance in harsh industrial environments? The HCDP-21 Pressure Transmitter – Diaphragm Type from HCCK is engineered for precision measurement, long-term stability, and superior durability across a wide range of applications including oil & gas, water treatment, chemical processing, food & beverage, and HVAC systems.
If you’re searching for the best diaphragm pressure transmitter for industrial applications, this is the solution trusted by engineers worldwide.
- HCDP-10 Simple Type Pressure Transmitter
- HCDP-11 Industrial Pressure Transmitter
- HCDP-12 Pressure Transmitter – Hygienic Type
- HCDP-13 Pressure Transmitter by HCCK
- HCDP-20 Pressure Transmitter – Industry Type
- HCDP-21 Pressure Transmitter – Diaphragm Type
- HCDP-30 Differential Pressure Transmitter
- HCDP-31 Single Flange Differential Pressure Transmitter
- HCDP-32 Double Flange Differential Pressure Transmitter
Why Choose HCDP-21 Pressure Transmitter – Diaphragm Type?
The HCDP-21 Pressure Transmitter is designed with advanced diaphragm sensing technology to ensure highly accurate pressure measurement even in corrosive, viscous, or high-temperature media. It combines cutting-edge sensor technology with robust construction to deliver reliable output under demanding operating conditions.
Key Advantages:
✅ High measurement accuracy
✅ Excellent long-term stability
✅ Anti-corrosion diaphragm material
✅ Strong overload resistance
✅ Wide pressure range options
✅ 4-20mA industrial standard output
✅ Compact and easy installation
Product Overview
Model:
HCDP-21 Pressure Transmitter – Diaphragm Type
Brand:
HCCK (Hebei Huachuang M&C Technology Co., Ltd.)
Sensor Type:
Diaphragm isolation structure
Output Signal:
4–20mA (2-wire system)
Power Supply:
Standard 24VDC
Accuracy:
Up to ±0.5% FS (optional ±0.25%)
Measuring Range:
From low pressure to high pressure (customizable)
Process Connection:
Threaded or flange options available
What Makes HCDP-21 the Best Diaphragm Pressure Transmitter?
1. Advanced Diaphragm Isolation Technology
The HCDP-21 uses a high-performance diaphragm sensor that effectively isolates the measuring element from the process medium. This makes it ideal for:
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Corrosive liquids
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High viscosity fluids
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Steam and high-temperature gases
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Food-grade and sanitary systems
The diaphragm prevents direct contact with aggressive substances, significantly extending product lifespan.
2. Superior Stability & Precision
When it comes to industrial pressure measurement, stability is critical. The HCDP-21 delivers:
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Low temperature drift
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Excellent repeatability
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Strong anti-interference capability
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Reliable long-term operation
This ensures accurate data monitoring for automated control systems and PLC integration.
3. Built for Harsh Industrial Environments
The HCDP-21 Pressure Transmitter features:
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Stainless steel housing
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Anti-vibration design
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IP-rated protection
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High overload capability
It is engineered for extreme environments such as offshore platforms, chemical plants, water treatment facilities, and heavy manufacturing industries.
Applications of HCDP-21 Pressure Transmitter
The HCDP-21 Diaphragm Pressure Transmitter is widely used in:
🔹 Oil & Gas Industry
Pipeline pressure monitoring, tank level measurement, compressor systems.
🔹 Water & Wastewater Treatment
Pump pressure monitoring, filtration systems, flow control systems.
🔹 Chemical Processing
Corrosive media pressure measurement.
🔹 Food & Beverage
Sanitary pressure monitoring in production lines.
🔹 HVAC & Energy Systems
Boiler pressure control and chilled water systems.
Technical Features That Improve Operational Efficiency
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Fast response time
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Wide operating temperature range
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Customizable diaphragm materials
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Compact design for tight installation spaces
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Low power consumption
These features make the HCDP-21 one of the most competitive diaphragm pressure transmitters in the global market.
Competitive Advantages Over Other Brands
When compared to other industrial pressure transmitters, the HCDP-21 stands out because:
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Competitive pricing without compromising quality
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OEM & customization support
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Strict quality control standards
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International export experience
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Reliable after-sales technical support
Manufactured by HCCK (Hebei Huachuang M&C Technology Co., Ltd.), a trusted instrumentation manufacturer in China, the product meets international industrial standards.
Why Buy HCDP-21 Pressure Transmitter Today?
If your operation requires:
✔ Accurate and stable pressure readings
✔ Long-lasting diaphragm isolation
✔ Industrial-grade durability
✔ Easy installation and integration
✔ Cost-effective high-performance solution
Then the HCDP-21 Pressure Transmitter – Diaphragm Type is the ideal choice.
Order HCDP-21 Pressure Transmitter – Diaphragm Type Now
Upgrade your industrial pressure monitoring system with the reliable and high-precision HCDP-21 from HCCK.
Contact us today for:
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Latest price quotation
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Technical datasheet
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Bulk order discounts
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OEM partnership inquiries
Ensure your industrial system operates with maximum accuracy and reliability.









