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F316 3"Lap Joint Flange (LJ) Stainless Steel 150-2500# ASME B16.5

Pressure Ratings:
150 lbs
300 lbs
400lbs
600 lbs
900 lbs
1500 lbs
2500 lbs
NPS:
1/2 "
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2 "
3"
3-1/2"
4"
5"
6"
8"
10"
12"
14"
16"
18"
20"
24"
Material：:
304
304L
316
316L
Custom
Quantity:
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ASME B16.5 Lap Joint Flange (LJ)
Standard: ASME B16.5
Material Standard: ASME A182
Manufacturing Facility Standard: ISO 9001:2015 , GB/T19001-2016
Certification: Material Test Reports (MTRS) and Certificates of Conformity (COC) are available upon request.

Product Overview

F316 3"Lap Joint Flange (LJ) Stainless Steel 150-2500# ASME B16.5

The F316 3"Lap Joint Flange (LJ) Stainless Steel 150-2500# ASME B16.5 is a high-quality industrial piping component manufactured to meet stringent international standards. Designed for critical applications across various industries, this flange offers exceptional performance, reliability, and longevity.

Our stainless steel flanges are precision-engineered using advanced manufacturing techniques and premium-grade materials. Each flange undergoes rigorous quality control and testing to ensure compliance with dimensional tolerances and pressure ratings specified by international standards.

This versatile loose ring flange provides outstanding flexibility for industrial piping systems requiring frequent maintenance and alignment adjustments. The innovative loose flange with stub end design enables quick assembly and perfect positioning during installation. Manufactured from corrosion-resistant stainless steel according to ASME B16.5 standards, this durable loose ring flange ensures reliable performance across pressure ratings from 150 to 2500#. The unique construction of this loose flange with stub end facilitates cost-effective system modifications and component replacements. Ideal for chemical processing, oil and gas applications, this practical loose ring flange offers significant advantages where rotational freedom and economical solutions are essential requirements. The precision-engineered loose flange with stub end guarantees secure connections while minimizing maintenance downtime.

Key Features

  • Premium Quality Materials: Manufactured from certified stainless steel grades ensuring excellent corrosion resistance and durability
  • Precision Engineering: CNC machined to exact specifications with tight tolerances meeting international standards
  • Comprehensive Size Range: Available in multiple sizes and pressure ratings to suit various piping applications
  • Industry Compliance: Fully compliant with ASME, EN, DIN, JIS, and other international standards
  • Versatile Applications: Suitable for oil & gas, chemical processing, power generation, water treatment, and other industrial applications
  • Quality Assurance: 100% inspection and testing with comprehensive documentation and traceability
  • Customization Available: Custom manufacturing services available for special requirements and non-standard dimensions
  • Global Supply: Worldwide shipping with experienced logistics support ensuring safe and timely delivery

Dimensions & Sizes

loose ring flange

PipeFlange DataLapHubDrilling DataWeight
NominalPipe SizeOutside DiameterOverall DiameterInside DiameterFlangeThickness minOverall LengthLapRadiusHub DiameterNumber of HolesBolt Hole DiameterDiameter of Circle of Holeskg/piece
ininininininininin
mmmmmmmmmmmmmmmmmm
1/20.840 21.303.500 88.900.900 22.900.440 11.200.620 15.700.120 3.0001.190 30.2040.620 15.702.380 60.450.38
3/41.050 26.703.880 98.601.110 28.200.500 12.700.620 15.700.120 3.0001.500 38.1040.620 15.702.750 69.850.55
1 1.315 33.404.250 108.01.380 35.100.560 14.200.690 17.500.120 3.0001.940 49.3040.620 15.703.120 79.250.76
1-1/41.660 42.204.620 117.31.720 43.700.620 15.700.810 20.600.190 4.8002.310 58.7040.620 15.703.500 88.901.01
1-1/21.900 48.305.000 127.01.970 50.000.690 17.500.880 22.400.250 6.4002.560 65.0040.620 15.703.880 98.601.3
2 2.375 60.306.000 152.42.460 62.500.750 19.101.000 25.400.310 7.9003.060 77.7040.750 19.104.750 120.72.03
2-1/22.875 73.007.000 177.82.970 75.400.880 22.401.120 28.400.310 7.9003.560 90.4040.750 19.105.500 139.73.25
33.500 88.907.500 190.53.600 91.400.940 23.901.190 30.200.380 9.7004.250 108.040.750 19.106.000 152.43.81
3-1/24.000 101.68.500 215.94.100 104.10.940 23.901.250 31.750.380 9.7004.810 122.280.750 19.107.000 177.84.76
44.500 114.39.000 228.64.600 116.80.940 23.901.310 33.300.440 11.205.310 134.980.750 19.107.500 190.55.25
55.563 141.310.00 254.05.690 114.50.940 23.901.440 36.600.440 11.206.440 163.680.880 22.408.500 215.96.02
66.625 168.311.00 279.46.750 171.51.000 25.401.560 39.600.500 12.707.560 192.080.880 22.409.500 241.37.4
88.625 219.113.50 342.98.750 222.31.120 28.401.750 44.500.500 12.709.690 246.180.880 22.4011.75 298.512.1
1010.75 273.016.00 406.410.92 277.41.190 30.201.940 49.300.500 12.7012.00 304.8121.000 25.4014.25 362.016.4
1212.75 323.819.00 482.612.92 328.21.250 31.752.190 55.600.500 12.7014.38 365.3121.000 25.4017.00 431.826.1
1414.00 355.621.00 533.414.18 360.21.380 35.103.120 79.250.500 12.7015.75 400.1121.120 28.4018.75 476.334.5
1616.00 406.423.50 596.916.19 411.21.440 36.603.440 87.400.500 12.7018.00 457.2161.120 28.4021.25 539.844.6
1818.00 457.225.00 635.018.20 462.31.560 39.603.810 96.800.500 12.7019.88 505.0161.250 31.7522.75 577.948.7
2020.00 508.027.50 698.520.25 514.41.690 42.904.060 103.10.500 12.7022.00 558.8201.250 31.7525.00 635.061.6
2424.00 609.632.00 812.824.25 616.01.880 47.804.380 111.30.500 12.7026.12 663.4201.380 35.1029.50 749.386.6
Class150

This flange is available in a comprehensive range of sizes and pressure ratings to accommodate diverse piping system requirements. Our manufacturing capabilities allow us to produce both standard and custom dimensions.

Available Sizes: Wide range from small bore to large diameter

Pressure Ratings: Multiple pressure classes available (Class 150, 300, 600, 900, 1500, 2500, and PN ratings)

Connection Types: Suitable for welding, threading, or slip-on connections depending on flange type

For detailed dimension tables and technical drawings, please contact our technical support team. We can provide comprehensive dimensional specifications according to your required standard (ASME, EN, DIN, JIS, etc.).

Applications

This flange is ideal for use in:

  • Oil & Gas Industry: Upstream, midstream, and downstream applications
  • Chemical & Petrochemical: Process piping, reactors, and storage systems
  • Power Generation: Conventional and renewable energy facilities
  • Water Treatment: Municipal and industrial water systems
  • Pharmaceutical: Sanitary process applications
  • Food & Beverage: Hygienic piping systems
  • Marine & Offshore: Shipbuilding and offshore platforms
  • General Industry: Manufacturing, HVAC, and building services

Quality Assurance

We maintain the highest standards of quality control throughout the manufacturing process:

  • ISO 9001:2015 certified manufacturing facility
  • 100% material traceability with heat number tracking
  • Comprehensive testing including chemical analysis, mechanical testing, and non-destructive examination
  • Third-party inspection available (TPI, LPI, SGS, BV, etc.)
  • Complete documentation package including MTC 3.1, test certificates, and dimension reports

FAQ

1. What materials are used for F316 3"Lap Joint Flange?

Our F316 3"Lap Joint Flange is manufactured from high-quality stainless steel grades including F304, F304L, F316, F316L, and other equivalent materials according to international standards. Material certificates are provided with each order.

2. What standards does this flange comply with?

This flange is manufactured in compliance with major international standards including ASME B16.5, ASME B16.47, EN 1092-1, DIN standards, JIS B2220, and HG/T standards. We can provide third-party inspection certificates upon request.

3. What is the delivery time?

Standard sizes are typically available from stock with 3-7 days delivery. Custom orders require 15-30 days depending on specifications and quantity. Rush orders can be accommodated with additional coordination.

4. Can you provide custom dimensions?

Yes, we offer custom manufacturing services. We can produce flanges according to your specific drawings and requirements. Our engineering team can also assist with design optimization.

5. What quality certifications do you provide?

We provide comprehensive documentation including Material Test Certificates (MTC), Third-Party Inspection Reports (TPI), Dimension Reports, and Pressure Test Certificates. All products comply with international quality standards.

Why Choose Our Flanges?

With decades of experience in manufacturing industrial piping components, we have established ourselves as a trusted supplier of high-quality flanges worldwide. Our commitment to excellence is reflected in:

  • Technical Expertise: Experienced engineering team providing technical support and custom solutions
  • Manufacturing Excellence: State-of-the-art facilities with advanced CNC machining and testing equipment
  • Quality Focus: Rigorous quality control at every stage from raw material to finished product
  • Customer Service: Responsive support team ensuring smooth order processing and after-sales service
  • Competitive Pricing: Direct manufacturer pricing with no intermediary markups
  • On-Time Delivery: Efficient production planning and reliable logistics partnerships

Contact Us

For quotations, technical specifications, or any inquiries about our products, please contact our sales team. We are ready to assist you with:

  • Product selection and specification
  • Custom manufacturing requirements
  • Technical documentation and certifications
  • Pricing and delivery schedules
  • After-sales support

Visit our website or reach out to our customer service team for more information about this and other products in our comprehensive range of industrial piping components.

CONTACT US

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