Engine mounts, chassis parts, and machined components for assembly lines.
High-strength fasteners, landing gear parts, and structural assemblies.
Forged housings, armor brackets, and mission-critical structural parts.
Precision housings, actuator frames, and armature linkages for automation systems.
Metal frames, brackets, and assemblies for appliances and home equipment.
Busbar holders, battery pack parts, and lightweight structural enclosures.
Solar mounting parts, wind turbine brackets, and battery enclosures.
Valve bodies, flange blocks, and downhole drilling components.
Large welded frames, PEB structures, and assemblies for industrial equipment.
Durable transformers built for consistent performance, energy efficiency, and stable power regulation.
Frigate’s industrial-grade enclosures provide durable, customizable protection with efficient thermal management for high-performance applications.
High-performance cables and wires engineered for durability and seamless connectivity across applications.
Custom-built wiring harnesses for secure connections and streamlined installations.
Precision-engineered busbars for efficient power distribution and minimal energy loss.
Robust connectors designed for secure locking, reliable conductivity, and long-term performance.
Diverse solutions covering automotive, electrical, mechanical, and industrial needs with precision-built components.
CNC machining delivers micron precision and tight tolerances for complex geometry.
Frigate CNC Machining offers high-precision, custom solutions for complex casting geometries. Multi-axis capabilities ensure tight tolerances and optimal surface finishes.
Sheet metal fabrication uses laser cutting, punching, and bending for precision.
Frigate Sheet Metal Fabrication utilizes advanced laser cutting and press brake technology for custom casting applications. Tight tolerances, superior welds, and high-strength materials ensure structural integrity.
Injection molding produces high-precision parts with consistent quality.
Frigate Injection Molding delivers custom-engineered parts with micron-level precision and structural integrity. Specialized molds maintain tight tolerances for complex geometries and high-stress applications.
Precision casting ensures accurate, high-quality parts.
Forging services improve material strength with precise tolerances.
Frigate Casting Services provides custom casting with tight tolerances and complex geometries. We enhance material properties using advanced metallurgy, ensuring strength and wear resistance. Our precision methods support high-performance aerospace, automotive, and industrial applications.
End-to-end part production from samples to bulk supply.
Ready-to-use assemblies built to exact fit and function.
Heavy-duty fabrication with high-strength materials for demanding applications. Robust welding for maximum structural durability.
Sourcing large-size flanges usually leads to mismatch in gasket selection or delayed project schedules. This range solves both by aligning with MSS SP-44, API 605, and NACE MR0175 standards with exact values up to 60-inch NPS.
Series A flanges come thicker and with more bolts for high-stress and cyclic load pipelines. Series B supports easier handling and lower weight, suitable for utility lines and low-torque assemblies.
We maintain face finish within 125–250 µin RA (RF) or 63–125 µin RA (RTJ), verified using calibrated stylus-type profilometers. Our weld neck and blind flanges undergo UT/MPI as per ASTM A388, and document packs include EN 10204 3.2 and NACE MR0175 compliance.
Need reliable Flanges for your next project? Get in touch with us today, and we’ll help you find exactly what you need!
Handles high-pressure sour service lines on jackets and decks with weld neck flanges in A694 F60/F65 and RTJ facing.
Fits large header lines and bypass manifolds, using Class 600 flanges with reliable spiral-wound gasket seating.
Connects boiler feedwater and condensate recovery loops with Series B flanges offering fewer bolts for easier maintenance.
Supports main seawater intake and reject lines where duplex or super duplex material ensures corrosion strength and long life.
Used in compressor tie-ins and pig launcher connections where bolt torque uniformity ensures better sealing in RF or RTJ types.
Enables temporary closures or flow control using blind flanges fabricated to Class 900 with custom corrosion-resistant overlays.
Generic large flanges often cause sealing failures or torque loss due to misaligned bolt circles. We manufacture with strict tolerance on bolt hole pitch and facing flatness to reduce that risk.
This range covers both Series A and B under ASME B16.47:2020, with size coverage up to 60 inches and Class 900. Available in forged A694 or fabricated plate A516 Gr.70 with cladding, it fits pressure lines, storage headers, and sour-service tie-ins.
Check all our Frequently Asked Question
Yes, both Series A and B flanges can be supplied with the same surface roughness and coating on request. We maintain RA values within 125–250 μin for RF and 63–125 μin for RTJ across both series. Coating like FBE or Inconel weld overlay can also be applied identically, depending on service conditions.
Series A offers more bolt holes and thicker flanges, suitable for higher stress or critical joints. Series B provides a lighter design with fewer bolts, reducing assembly time and weight. We help finalize based on load cycles, piping layout, or gasket type you plan to use.
Yes, gasket seating dimensions follow ASME B16.20 standards and match directly with our raised face or RTJ designs. We provide exact seating widths and groove depths along with the flange supply. This supports early gasket procurement and prevents mismatches during line assembly.
Yes, we provide detailed flange dimension sheets and approximate weight data for each size and class. This allows buyers to assess lifting gear, storage setup, and installation plan in advance. We also include bolt circle and bolt hole specs in the same file for fast reference.
We offer UT and MPI testing as per ASTM A388 along with heat treatment records and chemical reports. All flanges include EN 10204 3.1 or 3.2 certification, depending on the requirement. NACE, PED, and ISO 15156 compliance details are part of the standard dossier.
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818, Preakness lane, Coppell, Texas, USA – 75019
10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.
9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ
FRIGATE is a B2B manufacturing company that facilitates New Product Development, contract manufacturing, parallel manufacturing, and more, leveraging its extensive partner networks.
Need reliable wires and cables for your next project? Get in touch with us today, and we’ll help you find exactly what you need!
Need reliable Machining for your next project? Get in touch with us today, and we’ll help you find exactly what you need!