High-Precision Stainless Steel 316L Pressure Transmitter for Industrial Applications
Discover unmatched stability, reliability, and precision with our compact stainless steel 316L pressure transmitter—engineered for demanding industrial environments.
Designed to deliver exceptional accuracy and long-term calibration stability, this pressure transmitter is ideal for a broad spectrum of applications including petroleum, chemical processing, power generation, marine, and more.
Key Product Features
• ✅ Pressure Type: Gauge pressure (up to 35 Bar); Sealed pressure (above 35 Bar)
• ✅ Pressure Range: -100 kPa to 100 MPa
• ✅ Output Signal: 4–20 mA standard analogue signal
• ✅ Power Supply: 12 to 30 VDC
• ✅ Thread Connection: 1/4" BSPP (G)
• ✅ Electrical Connection: DIN 43650 Form A Hirschman Plug
• ✅ Protection Rating: IP65
• ✅ Body & Wetted Parts: Corrosion-resistant 316L stainless steel
• ✅ Sealing Element: FKM fluoro rubber (-20°C to +250°C), optional EPDM
• ✅ Pressure Medium: Silicone oil-filled isolation
• ✅ Structure: Fully welded, with integrated breathable membrane
• ✅ Media Compatibility: Air, water, oil, and compatible gases/fluids
Exceptional Performance and Stability
This pressure transmitter utilises the HT-series diffusion silicon isolation oil-filled core as its sensing element, ensuring high sensitivity and consistent signal integrity.
The signal processing electronics are securely housed in a robust 316L stainless steel body, providing exceptional resistance to corrosion and environmental wear.
Rigorous quality control processes—including component ageing, thermal compensation, and full functional testing guarantee superior stability, even in the most demanding field applications.
Performance Specifications
| Parameter | Value |
|---|---|
| Accuracy @ 25°C | ±0.25% F.S. (Typical), ±0.5% (Max) |
| Repeatability & Hysteresis | ±0.02% F.S. (Typical), ±0.05% (Max) |
| Long-Term Stability | ±0.1% F.S./Year (Typical) |
| Overload Capability | ≤ 1.5× rated pressure |
Advantages at a Glance
Wide pressure range options from vacuum to 100 MPa
Compact design with durable stainless steel housing
Customizable with various pressure interfaces and output signals
Adjustable zero and span for calibration flexibility
High-precision sensing with minimal drift and excellent repeatability
Applications
This pressure transmitter is suited for a wide range of industrial and engineering applications, including:
Petroleum and chemical processing
Metallurgy and power generation
Hydrology and water management
Hydraulic and pneumatic control systems
Marine and aerospace systems
General industrial process monitoring
Whether you’re monitoring pressure in non-corrosive liquids, compressed air, oil systems, or gaseous media, this transmitter ensures reliable, repeatable readings and is built to last.
Why Choose Our Pressure Transmitter?
With its full stainless steel design, wide operating range, and field-proven sensing technology, our pressure transmitter is the go-to solution for engineers and system integrators who demand top-tier performance in real-world conditions.
For more technical specifications, certifications, or customization options, contact us today or request a product datasheet.
The difference between Gauge, Absolute, and Sealed pressure transmitters.
1. Gauge Pressure (G or GP)
Measures pressure relative to atmospheric pressure.
Zero gauge pressure means it's equal to the current atmospheric pressure.
Most common in everyday applications (e.g. car tires, water pumps).
Example:
If a tire reads 35 psi (gauge), the actual pressure is 35 psi above atmospheric pressure (~14.7 psi at sea level).
So the absolute pressure is 35 + 14.7 = 49.7 psi.
Used when atmospheric pressure changes aren’t critical to your process.
2. Absolute Pressure (A or AP)
Measures pressure relative to a perfect vacuum (0 psi).
Doesn’t change with altitude or weather.
Always includes atmospheric pressure in its reading.
Example:
A vacuum chamber showing 0 psi (absolute) is a true vacuum.
If the ambient atmospheric pressure is 14.7 psi, and a process is at atmospheric pressure, it will read 14.7 psi (absolute).
Used when you need true, unchanging pressure reference — e.g., in scientific research or altitude-sensitive processes.
3. Sealed Gauge Pressure (SG or SGauge)
Measures pressure relative to a fixed (sealed) atmospheric pressure — usually sealed at 1 atm (14.7 psi).
Works like gauge pressure but doesn’t adjust with changes in local atmosphere (like elevation or weather).
Example:
You bring a sealed gauge transmitter from sea level to a mountain. It still assumes 1 atm = 14.7 psi, even though the actual atmosphere might be lower.
Used in environments where atmospheric pressure is not consistent but doesn't need absolute accuracy (like remote sites).
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How a 1/4 BSP 24VDC 316 Stainless Steel Gauge and Sealed Pressure Transducer with 4-20mA Output Works
Pressure transducers play a critical role in modern industrial and process control systems. One commonly used variant is the 1/4 BSP 24VDC 316 stainless steel gauge and sealed pressure transducer with a 4-20mA output. This robust, high-precision device is designed for demanding applications in sectors such as oil & gas, chemical processing, water treatment, and manufacturing.
In this article, we’ll break down how this specific type of pressure transducer works, its core components, and its advantages in real-world applications.
What is a Pressure Transducer?
A pressure transducer, also known as a pressure sensor, is a device that converts pressure into an electrical signal. This is essential for monitoring and controlling systems where accurate pressure measurement is crucial.
The key output of interest for industrial applications is often the 4-20mA current loop, known for its noise immunity and ability to transmit over long distances.
Components of the 1/4 BSP 24VDC 316 Stainless Steel Pressure Transducer
Here’s what makes this specific transducer effective and reliable:
1. 1/4 BSP Process Connection
The 1/4" BSP (British Standard Pipe) thread is a standard connection for industrial sensors.
Ensures compatibility with common fittings in pipelines and hydraulic systems.
2. 24VDC Power Supply
Operates using a 12-30 volt DC power source, common in industrial control systems.
Offers consistent energy efficiency and easy integration with PLCs and SCADA systems.
3. 316 Stainless Steel Construction
316 stainless steel is highly resistant to corrosion, ideal for harsh environments including seawater, chemicals, and high-moisture settings.
Ensures long-term durability and safety under pressure.
4. Gauge and Sealed Pressure Options
Gauge pressure sensors measure pressure relative to atmospheric pressure.
Sealed pressure sensors are sealed against external atmospheric changes, useful in environments with fluctuating ambient conditions.
5. 4-20mA Output Signal
A 4-20mA analogue signal is the standard in industrial automation.
Enables precise and stable data transmission over long cable runs without signal loss.
4mA represents the minimum pressure range, and 20mA the maximum.
How Does It Work?
Pressure Sensing
Pressure from a fluid (gas or liquid) enters the sensor through the 1/4 BSP port.
The pressure is applied to a sensing diaphragm inside the transducer.
Conversion to Electrical Signal
The diaphragm deforms slightly under pressure.
This deformation is measured by a sensing element (such as a piezo resistive or capacitive sensor).
The deformation is then converted into a voltage signal.
Signal Conditioning
The internal electronics convert this voltage signal into a standardized 4-20mA current output.
This current signal is proportional to the pressure within the calibrated range.
Transmission to Control Systems
The 4-20mA signal is sent to a PLC (Programmable Logic Controller), DCS (Distributed Control System), or data logger for monitoring, control, and analysis.
Benefits of 1/4 BSP 24VDC 316SS Pressure Transducers
High corrosion resistance for aggressive and wet environments.
Compact and standard connection for easy installation.
Reliable 4-20mA output immune to electrical noise.
Long operational life due to high-grade stainless steel and robust sealing.
Accurate measurements critical for process optimization and safety.
Conclusion
The 1/4 BSP 24VDC 316 stainless steel gauge and sealed pressure transducer with 4-20mA output is a versatile, durable, and highly accurate sensor solution for industrial applications.
Its compatibility with standard systems, coupled with the reliability of 316 stainless steel and the robustness of the 4-20mA output, makes it an ideal choice for engineers and system integrators seeking dependable pressure monitoring solutions.