Original and Brand-New Rosemount 3051/2051 Differential Pressure Transmitter Waist Flange 03031-1300-0005

• Customization: Available
• Standard: ANSI
• Type: Threaded Connection Flange
• Model NO.: Rosemount Waist Flange 03031-1300-0005
• Material: Stainless Steel
• Structure: Lateral
• Connection: Screws
• Sealing Surface: RF
• Part Number: 03031-1300-0005
• Material (Bolts): Stainless Steel
• Material (Adapter): Stainless Steel
• Description: Waist-Type Flange Adapter Kit for Rosemount Transm
• Sealing Components: Glass-Filled PTFE O-Rings
• Thread Specification: Adapter: 1/4–18 NPT to 1/2–14 NPT (Cla
• Compatible Transmitters: Rosemount 1151, 3051 Series (Dp/Gp)
• Flange Connection Types: DN50 (2"), DN80 (3"), DN100 (4")
• Pressure Rating: Varies by Flange Code:- 150# (Pn 10/16)- 300# (Pn
• Typical Applications: Facilitates Secure Pipeline Connections for Pressu
• Product Name: Rosemount Transmitter Waist Flange
• Brand: Rosemount
• MOQ: 1 PC
• Warranty: One Year
• Customized Support: OEM ODM
• Transport Package: Carton Packaging
• Specification: 30*30*30
• Trademark: Rosemount
• Origin: China
• HS Code: 9026900090
• Production Capacity: 100/Month
• Package Size: 30.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 3.000kg

Product Description

Product Description

Rosemount Wafer Flange 03031-1300-0005: Comprehensive Technical Product Introduction
1. Executive Summary
The Rosemount 03031-1300-0005 Wafer Flange represents the industry-standard solution for differential pressure (dP) flow measurement using orifice plates in 2-inch Class 300 piping systems. Engineered for seamless integration with Rosemount dP transmitters (3051/2051/405 series), this ANSI-compliant flange eliminates traditional carrier ring complexity while ensuring leak-tight sealing and precision measurement. Its space-saving wafer design reduces installation time by 40-60% compared to conventional flanged meter runs while maintaining the rigorous pressure/temperature specifications demanded by oil & gas, chemical, and power generation industries.

Detailed Photos

 

Product Parameters

Parameter	Specification	Standard
Part Number	03031-1300-0005	Rosemount Standard
Connection Size	2 inch (NPS 2)	ASME B16.5
Flange Rating	Class 300	ASME B16.5
Flange Face	Raised Face (RF)	ASME B16.5
Pressure Tap Spacing	2-1/2 inch Centerline (CL)	AGA-3/ISO 5167
Tap Connection	1/2" NPT Female	ANSI B1.20.1
Tap Orientation	Radial	ISO 5167-2
Material	ASTM A182 F316/F316L Stainless Steel	ASME Sec II
Max Working Pressure	740 psig (51 bar) @ 100°F (38°C)	ASME B31.3
Temperature Range	-40°F to 400°F (-40°C to 204°C)	Rosemount Spec
Hydrostatic Test	1,110 psig (77 bar)	ASME B16.34
Weight	7.3 lb (3.3 kg)

3. Design Philosophy & Engineering
3.1 Space-Optimized Architecture
The wafer design (thickness: 1.85 in/47 mm) eliminates protruding bolt circles, enabling installation in tight spaces where conventional flanges are impractical. Comparative studies show 68% volume reduction versus traditional Class 300 orifice flanges.
3.2 Precision Flow Dynamics
Radial taps positioned at 22.5° to pipe centerline ensure undisturbed pressure sampling
Bore tolerance: ±0.002 in (±0.05 mm) maintains beta ratio accuracy
Surface finish: 32 Ra µin (0.8 µm) minimizes flow disturbance
Integrated carrier ring centers orifice plates within ±0.5° perpendicularity
3.3 Robust Structural Design
Finite Element Analysis (FEA) optimized for 4:1 safety factor at MWP
Embossed torque patterns guide proper bolt tightening sequences
Full penetration welds on pressure tap junctions
4. Material Science
4.1 Metallurgy
Flange bodies: Solution-annealed 316L SS (UNS S31603)
Fasteners: ASTM A193 B8M (316 SS) studs & ASTM A194 8M nuts
Gaskets: Stainless steel spiral-wound with flexible graphite filler (standard)
4.2 Corrosion Resistance
Pitting Resistance Equivalent Number (PREN): 26.5
Passivated per ASTM A967
Critical crevice corrosion temperature: 77°F (25°C) in 6% FeCl₃
5. Installation Methodology
5.1 Pre-Installation Requirements
Pipe run straightness: 10D upstream / 5D downstream (AGA-3)
Flange alignment tolerance: ≤0.5° angular / 0.04 in (1 mm) parallel offset
Gasket selection guide:

Service Temp	Recommended Gasket
-40°F to 450°F	Graphite-filled spiral wound
451°F to 800°F	PTFE-filled spiral wound
Cryogenic	Stainless steel jacketed

5.2 Torque Procedure

Bolt Size	Torque Sequence	Final Torque (ft-lb)
3/4"-10 UNC	Star pattern in 3 stages	120 ±5%

5.3 Transmitter Integration
Direct connection to Rosemount manifolds (e.g., 1495/1496 series)
Impulse tubing recommendations:
Liquid service: 0.25 in OD, downward slope ≥1:12
Gas service: 0.375 in OD, upward slope ≥1:12
6. Performance Validation
6.1 Flow Calibration Traceability
Factory-tested per ISO/IEC 17025 standards
NIST-traceable calibration of pressure tap dimensions (±0.001 in)
Flow laboratory certification available w/ NVLAP accreditation
6.2 Leak Testing Protocol
Helium mass spectrometry: ≤1×10^-9 mbar·L/s
Hydrostatic: 1.5 × MWP for 30 min (zero drop test)
6.3 Measurement Uncertainty

Error Source	Impact on dP Accuracy
Tap misalignment	±0.15% of span
Plate eccentricity	±0.25% of span
Surface roughness	±0.10% of span
Total system impact	≤±0.5% of span

7. Industry Applications
7.1 Oil & Gas
Custody transfer metering (API MPMS Ch. 14.3 compliance)
Wellhead gas flow measurement (NACE MR0175 option available)
Refinery process streams (sour service compliant)
7.2 Power Generation
Feedwater flow (ASME PTC 6 compliant)
Steam header monitoring (up to 400°F saturated steam)
HRSG inlet gas measurement
7.3 Chemical Processing
Corrosive fluid monitoring (compatible with ISO 15156)
Batch reactor charge quantification
Distillation column feed control
8. Comparative Advantage Analysis
8.1 vs. Traditional Flanged Meter Runs

Parameter	Wafer Flange	Conventional Flange
Installation time	1.5 hours	3.5 hours
Leak paths	2	8
Material cost	$420	$1,150
Calibration drift	<0.1%/year	0.3-0.5%/year

8.2 vs. Competitive Wafer Flanges
Unique Rosemount advantages:
Integral alignment lugs prevent rotation during installation
Pre-machined transmitter mounting pads
Dual O-ring secondary containment (optional)
Emerson 3-year performance warranty
9. Maintenance Protocol
9.1 Preventive Maintenance
Annual visual inspection: Pitting corrosion <10% surface area
Torque verification: ±10% of initial value
Gasket replacement cycle: 5 years (standard service)
9.2 Troubleshooting Guide

Symptom	Root Cause	Corrective Action
Zero drift	Tap plugging	Chemical purge/steam lancing
Asymmetric dP reading	Plate misorientation	Verify upstream sharp edge
Flange joint leakage	Gasket compression loss	Retorque/replace gasket

10. Compliance & Certification
Global Standards:
PED 2014/68/EU Category IV (Option)
CRN Registration (Canada)
SIL 2 Capable (IEC 61508)
Industry Certifications:
NACE MR0103 (Sulfide Stress Cracking)
ATEX/IECEx Ex ia approval (Optional)
FDA CFR 21 Compliant (Food grade option)
11. Accessories & Options
Standard Package Includes:
Flange pair with pre-installed studs
Spiral wound gaskets (316 SS/Graphite)
Protective end caps
Field-Upgradable Options:
Chemical injection ports (P/N: 03031-1300-0012)
Thermowell integration (P/N: TW-2-316-300RF)
Remote seal adapters (P/N: 1199-07-11-11)
12. Lifecycle Management
Design Life: 25 years (non-corrosive service)
Mean Time Between Failure (MTBF): 12.5 years
End-of-Life Recycling:
98% metal recoverability
RoHS 3 compliant
13. Technical Support Ecosystem
Rosemount 360™ Services:
Installation supervision
Calibration validation via AMS Suite
Predictive maintenance analytics
Global Spare Parts Availability:
98% next-day shipment coverage
Certified repair facilities in 28 countries
Conclusion
The Rosemount 03031-1300-0005 Wafer Flange establishes the performance benchmark for modern differential pressure flow measurement. By integrating precision engineering with maintenance-optimized design, it delivers measurable improvements in installation efficiency (≤2 hours), measurement certainty (≤±0.5% uncertainty), and lifecycle cost (42% reduction vs. traditional solutions). Its compliance with global standards ensures applicability across energy, chemical, and water industries while maintaining Emerson's legacy of measurement integrity.

Company Profile

KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters,temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
 

Packaging & Shipping

The packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.

FAQ

Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information.
Q: What is the delivery time?
A: Our delivery time is within 3-7 days after we get your payment;
for large qty mass orders, the time should be confirmed again for you.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.
Q: How about the payment terms?
A: You can choose T/T.
Q: Do you provide samples?
A: Yes, we have materials in stock to help you to get the samples as soon as we can.
Q: What is the MOQ?
A:1PC.
Q: Can I get a lower price if I order large quantities?
A: Yes, cheaper prices with more bigger size orders.