Rosemount 3051SFP Integral Orifice Flow Meter

• Product Name: Rosemount 3051SFP Flow Meter
• Model Code: 3051SFP
• Manufacturer: Emerson (Rosemount)

The Rosemount 3051SFP Integral Orifice Flow Meter is a differential pressure–based primary flow element integrated with a high-accuracy transmitter. It provides precise, reliable flow measurement for liquids, steam, and gases in industrial process applications. The integral orifice design reduces installation complexity and enhances long-term performance.

The system combines the reliability of an orifice plate with the advanced Rosemount 3051SFP smart differential pressure transmitter, ensuring accurate flow measurement with minimal maintenance.

This specification applies to the supply, calibration, testing, and delivery of the Rosemount 3051SFP Integral Orifice Flow Meter for use in process measurement applications requiring high accuracy, stability, and compliance with international flow metering standards.

Applications of Rosemount 3051SFP Orifice Flow Meter

• Measurement of liquid, gas, and steam flow
• Custody transfer and fiscal metering (where approved)
• Refining, petrochemical, power, and process industries
• Clean and non-clean piping applications
• Pressurized and elevated temperature flow streams

Standards & Compliance of Rosemount 3051SFP 

The meter shall comply with the following industry standards:

• ISO 5167 (Orifice Metering of Fluids)
• ASME B36.10/36.19 (Pipe Dimensions)
• ANSI/ASME B31.1 & B31.3 Process Piping Codes
• IEC/EN 60079 for hazardous area classification
• NAMUR NE 43/NE 107
• SIL assessment (as applicable)

Meter Components

Transmitter

• Model: Rosemount 3051SFP Smart Differential Pressure Transmitter
• Measurement: Differential Pressure (DP)
• Output: 4–20 mA HART® compatible
• Enclosure: Weatherproof / Harsh Environment (IP66/67)
• Accuracy: Up to ±0.04% of calibrated span (typical)

Primary Element

• Integral orifice meter body with integral taps
• Orifice plate material: Stainless Steel (316/316L) or customer specified alloy
• Configurations: Concentric or Eccentric per application requirements
• Flange rating and size per process pipe

Taps & Installation

• Integral orifice design with factory-set upstream/downstream tap locations
• Minimizes field layout errors
• Reduces installation cost and piping requirements

Technical Specifications of Rosemount 3051SFP Flow Meter

Parameter	Typical Value
Flow Range	Application dependent (to be specified per process)
Pipe Size Range	DN25 – DN600 (1″ to 24″)
Pressure Rating	As specified by process conditions
Maximum Operating Pressure	Up to 413 bar (6000 psi) depending on materials
Temperature Range	–40°C to 400°C (–40°F to 752°F) depending on materials
Wetted Materials	SS316/316L, Hastelloy, Monel, Duplex, etc.
Accuracy	Up to ±0.04% of calibrated span
Output Signal	4–20 mA HART®
Approvals	FM/CSA/ATEX/IECEx as required

Performance Requirements

• Minimum measurable differential pressure resolution per user requirements
• Repeatability and stability for long-term operations
• Low susceptibility to flow profile distortion
• Configurable for single-phase and multi-phase flow where applicable

Materials of Construction

Wetted Parts

• Orifice plate: SS316/316L (standard)
• Meter body: Carbon steel / SS alloy (as specified)
• Sealing materials: PTFE / FKM per process compatibility

Non-Wetted Parts

• Transmitter housing: Aluminum / Stainless Steel
• Mounting bracket: Carbon steel or SS

Electrical & Instrumentation

• Power Supply: 12–36 VDC
• HART® 7 compatible
• Optional FOUNDATION™ Fieldbus / PROFIBUS PA
• Hazardous area options: Ex d, Ex ia, Ex n

Documentation

The supplier shall provide the following:

• Certificate of Conformance
• Material Test Reports (MTRs)
• Calibration certificates
• Installation & Maintenance Manual
• As-built drawing package
• Calibration sheet with zero/span data

Testing & Calibration

Supplier shall perform:

• 3-point calibration on DP transmitter
• Leak test on orifice assembly
• Verification of signal output
• Witness testing (optional)

Packaging & Delivery

• Packaged for export
• Corrosion protection applied
• Shipping weight and dimensions provided
• Delivery lead time confirmed

Warranty

Minimum 12 months from date of commissioning or 18 months from shipment, covering manufacturing defects and performance compliance.