Measure the flange
Steel Threaded Flange-DIN Flange
Threaded flange is a non-welded pipeline connection component equipped with internal thread, designed to connect threaded pipes without welding operation
Description
- 产品描述
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Threaded flange is a critical connecting component in piping systems. It connects directly to pipes by thread‑on engagement without welding.
Core Functions
● Connection
It flexibly connects piping‑system components such as pipes, valves, pumps and vessels. Secured by bolts and nuts, it establishes firm joints between equipment and pipes and ensures the integrity of the medium flow path.
● Sealing
Matched with gaskets via sealing faces (types including RF, FF, etc.), it effectively prevents leakage of internal pipe fluids (liquid and gas), and meets sealing requirements for complex working conditions such as high‑pressure and corrosive‑medium services.
● Load‑bearing Support
As a rigid joint point of the piping system, it distributes pipe stress, reduces pipe vibration and deformation induced by medium pressure as well as thermal expansion and contraction, and improves the stability of the overall system.
● Convenient Maintenance
Installation and disassembly can be completed without welding, greatly lowering maintenance difficulty of piping systems. It applies to scenarios requiring frequent inspection and component replacement, such as valve commissioning and partial piping modification.Key Features and Application Scenarios
● Advantages
① Non‑welded joint avoids thermal‑stress damage caused by welding, and imposes low additional torque on pipe bodies (e.g. alloy‑steel pipes, thin‑wall pipes).
② High installation efficiency with no complex welding procedures. Suitable for sites with limited on‑site welding conditions, such as confined spaces and flammable‑explosive zones.
③ Flexible material options covering carbon steel, alloy steel, stainless steel (304 / 316 / 316L, etc.), duplex steel and others, adaptable to various corrosion, temperature and pressure service conditions.
● Limitations
① Relatively large flange thickness, resulting in higher overall cost than slip‑on flanges and butt‑weld flanges.
② Limited temperature adaptability. Not recommended for services with sharp temperature swings (frequent hot‑cold cycling) or operating temperatures outside the range of ‑45 ℃ ~ 260 ℃. Otherwise thermal stress may cause thread loosening and sealing failure.
● Typical Application Scenarios
① Petrochemical industry: Medium‑ and low‑pressure pipelines in refineries and chemical plants, especially branch lines requiring frequent maintenance.
② Power & energy industry: Auxiliary pipelines of thermal‑power plants, non‑critical fluid transmission systems for nuclear‑power facilities.
③ Municipal engineering: Local connection nodes for water‑supply‑drainage pipe networks and urban gas pipelines.
④ Shipbuilding: Marine engine pipelines and ballast‑water systems (corrosion‑resistant and anti‑vibration required).
⑤ Pharmaceutical & food industry: Sanitary‑grade fluid transmission pipelines (sanitary stainless‑steel threaded flanges are adopted to prevent welding‑induced contamination).Manufacturing Process For Flanges
Product Testing
Inspect the bolt holes.
Measure flange thickness
Measure the flange
Measure the flange
Forged flange
Product Packaging
Product Display
FAQs
How do you guarantee product quality and enterprise operation management?
We implement scientific and efficient informatized management mode with ERP management software covering finance, production, procurement, transportation and other links. Meanwhile, we continuously upgrade production equipment and strictly abide by international standard management systems to stabilize product quality and improve comprehensive service capability.
Can you provide integrated pipeline design and construction services?
Yes. Beyond single pipe fitting production, we provide supporting prefabricated pipeline design and construction services, delivering integrated pipeline engineering solutions for various industrial projects.
What production equipment do you adopt for pipe fitting manufacturing?
We are equipped with more than 100 sets of professional production equipment, including elbow pushing machines, three-way cold drawing machines, reducing pipe hydraulic machines, hot bending machines, flange lathes, automatic longitudinal seam welding machines, anti-corrosion and temperature protection machines and other supporting equipment, ensuring high-precision and high-efficiency production.
What is the maximum specification of your high-pressure and seamless pipe fittings?
We are equipped with advanced large-scale production equipment. Our newly upgraded double bend pressing machines can produce high-pressure elbows with DN1000 and 80mm wall thickness, and the new seamless elbow pushing machine expands the production range of seamless elbows up to DN1000mm.
What is your annual production capacity of pipe fittings?
Our company has strong technical and production capacity, with an annual pipe fitting production capacity of 36,000 tons, which can fully meet large-scale, bulk and long-term order demands from domestic and foreign customers.
What enterprise certifications and qualifications do you have?
We have passed ISO9001 quality management system, ISO14001 environmental management system and ISO45001 occupational health and safety management system certifications. We also hold TS Pressure Pipeline Component Special Equipment Manufacturing License (Grade A, B, B1), TS Special Equipment Production License, CE/PED certificate and API certificate.
Steel Threaded Flange-DIN Flange
Threaded flange is a non-welded pipeline connection component equipped with internal thread, designed to connect threaded pipes without welding operation
OUR SERVICE
We offers a wealth of product support resources, including a range of technical and downloadable product manuals to product certifications.
Our Service
CANGZHOU LONGGUAN PIPE INDUSTRY
We manufacture various flanges and pipe fittings in carbon steel, stainless steel and alloy steel, supplying standard and custom pipeline components for global industrial projects.
Contact Us
E-mail: sales@lgpipefittings.com
Phone: +86 19333059881
Whatsapp: 8619333059881
Add: Yanglongtan Village, Bianwu Town, Yanshan County, Cangzhou City, Hebei Province, China
