⚙️ Emerson Rosemount 3051DP / 3051CD Differential Pressure Transmitter
Reliable Differential Pressure Measurement, Long‑Term Performance
In industrial processes, differential pressure transmitters are among the most critical instruments for flow and level control. Emerson Rosemount 3051 series models — 3051DP and 3051CD — deliver high accuracy, durability, and global certifications, making them the industry standard in process automation worldwide.
This guide covers the technical features, operating principles, and full product code explanations for Rosemount 3051DP and 3051CD transmitters.
🔎 Meaning of Model Codes
Rosemount 3051 series codes define the transmitter type:
- DP (Differential Pressure): Measures pressure difference between two points.
- CD (Coplanar Differential Pressure): Coplanar DP transmitter, compatible with orifice plates, venturi tubes, pitot tubes.
- TG (Gauge Pressure): Measures pressure relative to atmosphere.
- TA (Absolute Pressure): Measures pressure relative to absolute zero reference.
These codes are essential for selecting the correct transmitter configuration during procurement.
📊 Rosemount 3051 Series Full Product Code Explanations
| Product Code | Description |
| 3051CD2A22A1AB4 | 3051CD → Coplanar DP transmitter.
2 → Medium pressure range.
A22 → 2” DIN flange, 316L SS.
A1 → 4–20 mA HART output.
AB4 → Aluminum housing, NEMA 4X/IP66. |
| 3051DP1A02A1AB4 | 3051DP → Differential Pressure transmitter.
1 → Low pressure range.
A02 → ½” NPT, 316L SS connection.
A1 → 4–20 mA HART.
AB4 → Aluminum housing, NEMA 4X/IP66. |
| 3051TG2A2B21AB4 | 3051TG → Gauge Pressure.
2 → Medium pressure range.
A2B21 → ½” NPT, Hastelloy C.
A1 → 4–20 mA HART.
AB4 → Protection class: NEMA 4X/IP66. |
| 3051TA2A2B21AB4 | 3051TA → Absolute Pressure.
2 → Medium pressure range.
A2B21 → ½” NPT, 316L SS.
A1 → 4–20 mA HART.
AB4 → NEMA 4X/IP66. |
| 3051DP1A2B21A1 | 3051DP → Differential Pressure transmitter.
1 → Low pressure range.
A2B21 → ½” NPT, Hastelloy C.
A1 → 4–20 mA HART.
A1 → Standard aluminum housing, NEMA 4X/IP66. |
| 3051CD3A22A1AB4 | 3051CD → Coplanar DP transmitter.
3 → High pressure range.
A22 → 2” DIN flange, 316L SS.
A1 → 4–20 mA HART output.
AB4 → Aluminum housing, NEMA 4X/IP66. |
⚙️ Operating Principle
Rosemount 3051DP/CD transmitters operate in four steps:
- Pressure difference detection – HP and LP inputs are sensed.
- Differential pressure calculation – Sensor measures HP–LP difference electronically.
- Signal conversion – Value is converted to 4–20 mA, HART, or digital protocol.
- System integration – Signal is transmitted to DCS/PLC for flow, level, or pressure monitoring.
Applications include:
- Flow measurement with orifice plate/venturi
- Hydrostatic level measurement via tank bottom pressure difference
- Filter monitoring via inlet–outlet pressure difference
🏭 Application Areas
- ⚡ Power plants: Steam flow measurement, boiler level control
- 🛢️ Petrochemical & Refinery: Differential pressure in high‑pressure processes
- 💧 Water & Wastewater: Tank level measurement, filter differential pressure
- 🔧 General process automation: Flow, level, and DP applications
🎯 Yeşil Grup Enerji’s Contribution
As an independent supplier, Yeşil Grup Enerji provides Emerson Rosemount 3051DP and 3051CD transmitters with:
- 🌍 Fast global sourcing
- 💰 Competitive pricing and project‑specific offers
- 📑 Technical datasheet and configuration support
- 📩 RFQ submission options
- ⏱️ Flexible delivery schedules for EPCs, OEMs, and maintenance teams
Our multi‑brand supply structure ensures the most suitable solution for your project requirements.
🌍 Target Markets & Regional Coverage
Yeşil Grup Enerji supplies Emerson Rosemount 3051 series and other industrial instrumentation products worldwide, offering multi‑brand alternatives, technical consultancy, and fast RFQ responses.
👉 Important Note: Yeşil Grup Enerji is an independent material supplier. We are not an authorized distributor of the brands mentioned in this article. However, by offering multi‑brand solutions, fast RFQ responses, and global sourcing advantages, we provide the most suitable alternatives for your projects.
Regional coverage:
- 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 a Quote or Technical Support
For Rosemount 3051DP / 3051CD transmitters:
- 📑 Request technical datasheets
- 📩 Submit an RFQ and check stock availability
- ⚡ Get your Emerson Rosemount 3051 price quote today
📧 info@yesilgrupenerji.com
📞 +90 505 696 61 00
🌐 www.yesilgrupenerji.com
