Lap joint flange

Stainless steel swivel flange (Lap joint flange) is a type of flange used with a short piece of pipe called the stub end, this piece of pipe will be welded directly to the pipe and held by the swivel flange. Swivel flanges are used in short and high pressure pipelines.

The lap joint swivel flange is designed to slide on the pipe and rotate around the stub end, making it easy to adjust the pipe direction during installation. The flange part does not come into direct contact with the environment inside the pipe, instead the stub end part will be in direct contact with the conductor inside. This is the choice for customers who want to save costs in non-critical applications.

Flange standards at QMS

  • Steel grade: SUS 304, 304L, 316, 316L
  • Standard: ANSI 150LB, ANSI 300LB, ANSI 400LB, ANSI 600LB, ANSI 2500LB…
  • Origin: Vietnam, Taiwan, Korea, China, other…
  • Specification: Diameter DN10 – DN2000
  • Applications: Wastewater treatment, environment, refrigeration, M&E, petrochemical industry, oil and gas, water supply and drainage, high-rise buildings…

Refer to the table of technical standards for swivel flanges

Stainless steel swivel flanges come in the form of RF (Rise face) or FF (flat face) flanges. The surface of the RF swivel flange has one smooth plane and the FF will have two smooth planes. They are still designed with holes to connect with bolts, valve flanges and other accessories on the pipeline.

A stub end (also known as a stub end) is a short piece of pipe used to connect to a swivel flange, commonly used in high pressure applications. The stub end has a structure similar to a pipe, however only one end has a flange, while the other end is usually cut square or curved and has no flange.

The stub end is designed to be welded to pipes or fittings, using the MIG or TIG welding process. The stub end will then be secured to the rotating flange with screws or bolts. Using a stub end makes the installation process simpler, saving time and costs compared to using a full swivel flange for each pipe.

Stainless steel swivel flanges are composed of two separate parts, so each part will use a different standard. Specifically:

  • The stub end follows the pipe’s standards.
  • The flange part follows normal flange standards.

Lap joint flange technical standards table for reference complies with ANSI B16.5 class 300 Flanges standard

Characteristics of stainless steel lap joint swivel flanges

Stainless steel swivel flanges are made from high quality stainless steel such as SUS 304, 304L, 316, 316L. Below are some common characteristics of stainless steel swivel flanges:

  • The product has high aesthetics and durability.
  • 304 and 316 stainless steel swivel flanges are resistant to chemicals and corrosives.
  • Flanges made of 304 stainless steel and 316 stainless steel are resistant to corrosive substances and chemicals.
  • Withstand high pressure and temperature environments.
  • High applicability, safety, low price.

Applications of swivel flanges in industry and in life

Stainless steel swivel flanges are used in short and high-pressure pipelines and are applied in diverse pipeline systems, specifically:

  • Industrial construction industry – Industrial M&E system
  • High-rise building construction industry – Construction M&E System
  • Environmental industry – Wastewater treatment.
  • Petroleum and petrochemical industry – Oil pipeline system
  • Gas and compressed air supply industry
  • Chemical industry – Piping systems
  • And other industries.

Reputable quality swivel flange supplier in Ho Chi Minh City

QMS – Quang Minh Stainless Steel Company specializes in providing quality standard swivel flange products including dn65 swivel flange, dn200 swivel flange, dn150 swivel flange, dn100 swivel flange, ansi class 150 swivel flange… Has clear origin and quality meets international standards.

QMS has accompanied many large and small projects from Landmark 81 building, Le Minh Xuan wastewater treatment plant, Number one factory, Jotun greenfield factory, Vinfast factory,…

At QMS – Quang Minh Stainless Steel, we provide stainless steel pipes and accessories of domestic and foreign origin, complying with international standards such as (ASTM, ANSI, ASME, DIN,…) according to each individual’s requirements. project.

Contact us for advice and quotes on stainless steel swivel flanges

QMS – Quang Minh Stainless Steel commits to quality on the stainless steel products it distributes with the desire for long-term cooperation with partners, purchasing units, contractors as well as investors. Please contact us immediately via hotline: 0906345304