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Yokogawa Draft Pressure Transmitters

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Yokogawa Draft Pressure Transmitters
Yokogawa Draft Pressure Transmitters

⚙️ Yokogawa Draft Pressure Transmitters

Reliable Solutions for Low Pressure Measurement in Boilers and Furnaces

Draft pressure transmitters are designed to measure very low pressure ranges. They are essential in boilers, furnaces, and ventilation systems where negative or low positive pressures must be monitored with high accuracy. Yokogawa’s EJA120E and EJX120A series transmitters stand out with high accuracy, long‑term stability, and DPharp digital sensor technology.

📌 Yokogawa Draft Pressure Models

  • EJA120E → Standard draft pressure transmitter
  • EJX120A → High‑accuracy draft pressure transmitter (±0.04%)

These models serve as natural references for searches such as “boiler draft pressure transmitter” and “furnace low pressure transmitter.”

🧩 Product Code Explanation (CODE BREAKDOWN)

📦 EJA120E – Example Code Breakdown

Code

Description

EJA120E

Draft Pressure Transmitter

D

Range code (low pressure range)

M

Body material (316SS)

S5A

Diaphragm material

92DN

Electrical connection standard

/NF

Option (e.g., ATEX certification)

📦 EJX120A – Example Code Breakdown

Code

Description

EJX120A

High Accuracy Draft Pressure Transmitter

J

Measurement range (ultra low pressure)

S

Body material (316SS)

D1

Capillary type

P

Process connection

/HE

High‑temperature option

👉 Improvement: Adding breakdown tables for EJX120A strengthens SEO for searches like “Yokogawa EJX120A code breakdown.”

📊 Technical Specifications

Specification

Value

Measurement Range

−50 Pa to +50 Pa

Accuracy Class

±0.04% (EJX: ±0.025%)

Output Signals

4–20 mA HART, FOUNDATION Fieldbus, Profibus

Process Connections

NPT, DIN/ISO adapters

Wetted Materials

316SS, Hastelloy

Protection Class

IP66/IP67

Operating Temperature

−20 °C to +85 °C

Safety Certification

SIL2 / SIL3

⚙️ Operating Principle

Draft transmitters measure low pressure differences to control airflow in boilers or furnaces:

  • Negative pressure is applied to the diaphragm.
  • The DPharp sensor detects diaphragm deflection.
  • The measurement signal is processed by the electronics.
  • The output signal is transmitted to the control system.

This ensures combustion efficiency, energy savings, and process safety.

🏭 Application Areas

  • Power Plants → Boiler draft pressure monitoring
  • 🏭 Industrial Furnaces → Negative pressure control
  • 🌬️ Ventilation Systems → Low pressure differential measurement
  • 🛢️ Oil & Gas → Combustion chamber pressure control
  • ⚗️ Chemical & Petrochemical → Low pressure monitoring in reactors

🎯 Which Model Should I Choose?

Application / Requirement

Recommended Model

General low pressure measurements

EJA120E

High‑accuracy critical applications

EJX120A

High‑temperature environments

EJX120A (/HE option)

🔧 Installation and Integration Recommendations

  • Mount transmitters away from vibration.
  • Keep impulse lines short in negative pressure applications.
  • Perform zero & span calibration for low pressure ranges.
  • Verify shielding and grounding in HART/Fieldbus/Profibus integration.

🌍 Target Markets and Regional Coverage

Yeşil Grup Enerji independently supplies Yokogawa EJA120E and EJX120A draft pressure transmitters in Turkey and global markets.

Regional coverage:

  • Turkey & Middle East: Turkey, Saudi Arabia, UAE, Qatar, Iraq, Jordan, Oman
  • Europe: Germany, France, Netherlands, Italy, Poland, Romania, UK
  • Central Asia: Russia, Azerbaijan, Kazakhstan, Uzbekistan, Turkmenistan
  • Africa: Algeria, Egypt, Nigeria, South Africa, Kenya, Morocco
  • Far East: China, South Korea, India
  • Americas: USA, Brazil

📩 Request for Quotation or Technical Support

For Yokogawa EJA120E, EJX120A, or other draft pressure transmitter models:

📧 info@yesilgrupenerji.com

📞 +90 505 696 61 00

🌐 www.yesilgrupenerji.com

👉 Important Note Yeşil Grup Enerji is an independent supplier. We are not the official distributor of the brands mentioned here. With global sourcing, fast RFQ responses, and broad brand access, we provide the most suitable solutions for your projects.

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