DIN EN1092-1 BS Forged Flat Face Slip On Flange With Golden Yellow Painting

DIN EN1092-1 BS Forged Slip On Steel Flange With Golden Yellow Painting

European standard EN 1092-1 – concerning flanges for pipes – establishes the requirements for steel flanges based on their nominal pressure (PN) and dimension (DN). Moreover, it defines the different kinds of flanges and their sealing surfaces, tolerances, threading and labelling. In the Standard.Different type code as below
Type 01 is Plate flanges for welding
Type 02 is Loose plate flanges with weld-on plate collar
Type 04 is Loose plate flanges withweld-neck collar
Type 05 is Blank <blind> flanges
Type 11 is Weld-Neck Flanges
Type 12 is Hubbed slip-on flanges for welding
Type 13 is Hubbed threaded flanges
Type 21 is Integral flanges
Type 32 is Weld-on plate collars
Type 33 is Lapped pipe ends
Type 34 is Weld-neck collars

Product Information/Product Description/Basis Information/Specification

Features /Characteristics

•Carbon steel flanges shall not be used in services above 425 °C

•High-temperature service: Standard carbon steel material shall be ASTM A 105, a material that can be safely

used for temperatures between minus 29 °C and 425 °C.

•Low-temperature Service: Carbon steel flanges used for services below minus 29 °C, shall conform to the

impact-testing requirements of ASME B 31.3.

•ASTM A 350-LF2 shall be the standard material for low temperature applications

•High-Yield Service: High strength carbon steel flanges ASTM A694 should fit API Std. 5L

pipe Grade X42 to X65.

•Material for low-alloy steel flanges (11/4 Cr – 1/2 Mo) shall be ASTM A 182-F11. Material for

intermediate alloy steel flanges (11/2 Cr – 5 Mo) shall be ASTM A 182-F5.

Technology/ How to use and install the different flange types

WELDING NECK FLANGES

They are connected to the pipe by means of a Butt weld connection. They are

used when X-ray testing is required or if the torque over unions are maximum.

Its long tapered neck optimizes the stress distribution.

SLIP-ON FLANGES

This kind of flanges are installed with two weld bead, sliding the pipe inside.

Thus installation costs are lower, so less accuracy is required for pipe cutting.

THREADED FLANGES

They are usually installed with the pipe previously threaded, in places where

welding cannot be done. We do not recommend to install if there are high

pressure variations in the system

LAP JOINT FLANGES

They slide on an overlapped gasket. They are commonly used where it is

necessary to dismantle in order to be cleaned or repaired. Dismantling cost

decreases due to the ease of flange turning and drilling alignment.

.

SOCKET WELD FLANGES

This kind of flange is especially designed for lower small diameters and high

pressures. The pipe is inserted into the flange up to the seat and then is fillet

welded against the cube.

BLIND FLANGES

Blind flanges are utilized for pipe ends, and they bolted to any of the above

flange types.

Material Grades:

Production Process

Flanged Standard

ASME B16.5

This is the most used flange standard worldwide. The standard includes

forged, cast and laminated flanges. It covers service, materials, dimensions,

tolerances, marking and testing for flanges. It also describes all flange types

for size 1/2”to 24”Class 150#, 300#, 400#, 600#, 900# & 1500#, and 1/2”to

12”Class 2500#.

ASME B16.36

This standard is applicable to flanges for flow measurement with orifice plate.

ASME B16.36 flanges have the same dimensions as B16.5 flanges except for the minimum thickness

that is increased to allow measurement orifices.

Moreover, two slots and bolts allow flange separation and the replacement of

the measurement plate. It covers sizes from 1”to 24”Class 300# to 1500#,

and sizes 1”to 12”Class 2500#.

MSS SP-44

An standardization used for thin thicknesses and high strength. It covers

ranges from 12”to 60”Class 150# to 600# and up to 48”Class 900# only

for blind and welding neck flanges. Outside diameter and drilling template

matches with ASME up to 36. Therefore, they can be used with valves and

pumps according to ASME.

ASME B16.47

This standard covers the previous one complementing it with materials,

pressure ratings and temperatures from ASME B16.5. A type class is similar to

MSS-SP44. B type is the same as API 605.

ASME B16.20

It includes materials, dimensions and marking of rings for steel flanges 1/2 to

24”Class 150# to 1500#, and 36”Class 900#.

API 6 A

API 6 A specification has been created for wellheads and Christmas trees.

It includes the standardization of lap joint flanges, which are dimensionally

replaceable with ASME B16.5 ones but adding some tolerances with all sizes.

However, as API materials are more resistant, the maximum service pressure of

API/ASME union is limited to that of lower performance flange.

EN1092-1

This European Standard for a single series of flanges specifies requirements for circular steel

flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000.

This European Standard specifies the flange types and their facings, dimensions, tolerances,

threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure/ temperature

ratings and approximate flange masses.

For the purpose of this European Standard, "flanges" include also lapped ends and collars.

This European Standard applies to flanges manufactured in accordance with the methods

described in Table 1. Non-gasketed pipe joints are outside the scope of this European Standard.

Application/Usage

A flange is a method of connecting pipes, valves, pumps, and other equipment to form a piping

system to convey the water, steam, air, gas and oil. It also provides easy access for cleaning,

inspection, or modification.

DEYE PIPING INDUSTRY CO., LTD. is a projects- Oriented company integrated with

Design, manufacture and Marketing in Piping Industry for Oil gas water. We started to cooperate the piping projects Contractors since year of 2004. During twenty years, we have successfully participated in different projects in Egypt, United Arab Emirates, Saudi Arabia, Turkey, Italy, France, Spain, KZ(Kazakhstan), UZ (Uzbekistan), Russia, Maylasia, Singapore, Thailand. etc.

The products we can supply includes Pipes fittings, flanges, fasteners, pipes& Tubes, Industry valves and valve accessories.

The material we can supply includes:

Stainless Steel304, 304L, 304H, 316, 316L, 316H, 310, SS321, SS321H, 347, 347H, 904L

Super Duplex SS 2507, DSS2205, UNS31803 UNS32750， UNS32760

1.4301,1.4306, 1.4401, 1.4435, 1.4406, 1.4404， 1.4462， 1.4410， 1.4501

Carbon Steel A234 WPB, WP5, WP9,WP11, WP22, A420WPL6, A420WPL8

ST37.0,ST35.8,ST37.2,ST35.4/8,ST42,ST45,ST52,ST52.4

STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49

WCB, A105, WCC, WC5, WC6, WC9, W12, LCB, LCC.

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helping to create a more sustainable to-morrow.

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How to assist the pipeline projects?

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