BS Standard (abbreviation for British Standards Institue) is a British standard, used as a measure for the production and machining of quality assurance flanges established by the British Standards Institution and is also the one of the first sets of standards for industrial products and goods in the world. The BS flange standard is to provide guidelines and regulations for steel flanges.

Currently, the most popular flange standard is BS4504. BS4504 standard, diameter from D15- D1000, pressure from PN5-PN10-PN16-PN25, etc., specialized for water supply and drainage systems, fire protection systems, road and bridge systems and industrial projects…

Normally the BS standard flanges used are mainly BS PN10 and BS PN16 flanges.

Common types of BS flange standards: BS 4504 flanges PN10, PN16, PN25, PN40

Flange DN PN10

Flange DN PN16

Flange DIN PN25

Flange DIN PN40

When the piping system at the company involves flanges, we will definitely touch their technical standards. Among the DIN flange thickness standards – PN10, PN16, PN25, PN40 are flange standards that are encountered very often due to their popularity. If so, what exactly are the DIN flange standards – PN10, PN16, PN25, PN40 and what are the detailed specifications?

The DIN Flange Standard (Deutsches Institut für Normung e.V.) has witnessed a remarkable development journey in its history. An interesting and important topic in the industry. Let's explore with Tan Gia Bao through this creatively summarized article about this standard:

The DIN standard was formed on December 22, 1917 with the initial name "Normenausschuß der deutschen Industrie" (Standards Committee of German Industry). After many revisions and updates, in 1975 it was revised to the current name "Deutsches Institut für Normung" (German Standards Committee). Currently, DIN has published more than 30,000 DIN Standards in many technology fields.

Common types of DIN flanges are: Slip – On Flange, Blind Flange, Threaded Flange With Neck, Welding Neck Flange, Lapped Joint Flange…

DIN flange thickness standards are divided into many sub-classifications such as: PN10, PN16, PN25, PN40…

ANSI standards (abbreviation for American National Standards Institute) means the American national standards institute. The ANSI flange standard was created with the purpose to administer and coordinate the voluntary and formal standardization of convention systems.

ANSI flange standards are a set of standards used to produce steel flanges, 304 stainless steel flanges, 316 stainless steel flanges. They are proposed, originally researched and applied in the US and applied worldwide.

Normally this type of flange is not as commonly used as JIS flanges and BS flanges in the Vietnamese market. On the other hand, the United States has now also used the ASME flange standard to replace the ANSI standard.

Common types of ANSI standards: ANSI B16.5 class 150, class 300, class 600, stainless steel 304 /L, stainless steel 316 /L