How to Select an Anti-Corrosion Explosion-Proof High Temperature Pressure Transmitter (2026 Guide)

In harsh industrial environments such as petrochemical, metallurgy, and pneumatic conveying systems, an anti-corrosion explosion-proof high temperature pressure transmitter is essential for safe and stable operation. Choosing the right model is critical for performance and reliability.

1. What is an Anti-Corrosion Explosion-Proof Pressure Transmitter?

It is a specialized pressure measurement device designed for high temperature, corrosive, and hazardous environments, featuring resistance to heat, corrosion, clogging, and explosion risks.

2. Key Factors for Selection

1. Medium Characteristics

High temperature media (up to 1000°C)
Viscous fluids (slurry, glue)
Particle media (powder, granules)
Corrosive media (acid, alkali)

Recommended materials: 316L, Tantalum, Titanium, Monel

2. Temperature Range

Ambient: -25°C to +85°C
Media: -40°C to 300°C / 800°C / 1000°C

3. Pressure Range

0 ~ 0.1 Bar (low pressure)
Up to 40 Bar

4. Output Signals

4-20mA
RS485 (Modbus RTU)
4-20mA with HART

5. Explosion-Proof Rating

CT4
CT6 (higher safety level)

6. Process Connection

DN32 / DN50 / DN80 flange
Custom connections

7. Accuracy & Stability

Accuracy: ±0.5%FS to 0.075%FS
Long-term stability: ≤±0.2%FS/year

3. Typical Applications

Pneumatic conveying systems
Powder handling equipment
Petrochemical plants
Metallurgical industry
Natural gas systems
High temperature industrial equipment

4. Recommended Solution: STG10 Series

The STG10 high temperature pressure transmitter is designed for extreme environments:

Up to 1000°C resistance
Anti-clogging & anti-corrosion design
Multiple diaphragm materials
CT4 / CT6 explosion-proof
Wide temperature compensation

5. Frequently Asked Questions (FAQ)

What is an anti-corrosion explosion-proof high temperature pressure transmitter?

It is a specialized industrial device designed for high-temperature, corrosive, and hazardous environments, featuring resistance to heat, corrosion, clogging, and explosion risks.

What media can the STG10 pressure transmitter measure?

It is suitable for high-temperature media, viscous fluids, particle media, and corrosive substances such as acids and alkalis.

What is the maximum temperature it can handle?

Depending on the model, the media temperature can reach up to 1000°C, with standard versions supporting 300°C or 800°C.

How to choose the right diaphragm material?

316L stainless steel is suitable for general use, while tantalum, titanium, or Hastelloy is recommended for highly corrosive environments.

What is the difference between CT4 and CT6 explosion-proof ratings?

CT6 provides a higher safety level for more hazardous environments, while CT4 is suitable for general industrial explosion-proof applications.

How to prevent clogging in viscous or particle media?

Use a flush diaphragm or external diaphragm design combined with flange installation to improve anti-clogging performance.

Is heat dissipation necessary for high temperature applications?

Yes, for temperatures above 200°C, a cooling structure or remote mounting is recommended.

Which output signal should I choose?

4-20mA is standard; for communication, RS485 (Modbus RTU) or HART protocol is recommended.

How to choose the accuracy level?

±0.5%FS is sufficient for most applications, while 0.1%FS or 0.075%FS is recommended for high-precision requirements.

What industries is the STG10 used in?

It is widely used in pneumatic conveying, powder handling, petrochemical, metallurgy, natural gas, and high-temperature industrial equipment.

6. Related Products

6. Conclusion

Selecting the right transmitter depends on media, temperature, materials, and safety requirements. The STG10 series is an ideal solution for demanding industrial applications.

High-Temp Explosion-Proof Pressure Transmitter Selection