An organisation that sets international standards is the International Organization for Standardization, or ISO. Representatives from numerous national standards bodies make up the ISO. The International Standards Organization (ISO) publishes technical studies and certifies standards and recommendations for a variety of industries and uses. For an ISO 7005 Pn16 Flange, for instance, the ISO determines the ISO Flange Pressure Rating.
Large ISO, another name for the ISO Pipe Flange Standard, has a sexless appearance. Aluminium or 304L stainless steel are both used to make ISO Slip On Flanges. The ISO and KF seals are made with the same design concepts. Similar to the ISO KF Vacuum Flange, the ISO Cf Vacuum Flange faces are counter-bored or grooved to receive a metal centring ring with an elastomeric o-ring around its O.D. The ISO Cf Vacuum Flange centring ring serves two purposes. It holds the O-ring in place while also lining up the flanges.
However, the ISO O-ring is more likely to roll off due to the bigger diameter. Therefore, an external retainer with a spring-loaded mechanism is used to hold it. The characteristics of the O-ring set Iso 6162 Split Flange parameters. As a result, only applications with temperatures between 0° C and 120–180° C can use the ISO 6164 Square Flange. The performance range of the ISO Lf Flange is also restricted to pressures between atmospheric and 10-8 Torr or mbar. The largest tube that might be joined to an ISO Din flange is measured by its nominal I.D. (in, mm). ISO Flange Manufacturers in India provide standard sizes in the following ranges: 63, 80, 100, 160, 200, 250, 320, 400, 500, and 630.
When utilised as a structural element, the ISO Flange F14 delivers enhanced strength. An ISO 5210 Mounting Flange is a metal ring that has been bored with a number of holes. A shutter or lens can be mounted to a lens board using the ISO 5211 Mounting Flange. Screws are used to firmly fasten the ISO 7005 Mounting Flange to the front of a lens board.
Onshore, offshore, and subsea applications all require ISO 27509 Compact Flange. Compared to standard flanges, this ISO Din Flange delivers significant weight and space savings. The ISO Nw40 Flange is regarded as the most efficient and environmentally friendly piping joint currently available because it has a leak-free joint integrity. The dual sealing function of the ISO Weld Neck Flange addresses both health and safety concerns by preventing the release of hydrocarbon into the atmosphere.
The ISO 160 Blank Flange was created using cutting-edge finite element analysis, typically weighing 70 to 82% less than a conventional flange. The ASME VIII, Div 2 requirements and ANSI/ASME B31.3 are both fully met by the ISO Flange F07.

| Specifications | ISO Flanges |
|---|---|
| ISO Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges. |
| ASME B16.5 ISO Flange size range | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| ISO Flange Standard DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| ISO Flange Standard ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| ISO Flange Standard UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| ISO Flange Standard EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| ISO Flange Standard ISO | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| Main Types | Forged / Threaded / Screwed / Plate |
| Flange supporting material | Gasket, Ring Joint, Flange Bolts |
| Most common types of ISO Flanges |
|
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove |
| ISO Pipe Flanges Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
|
| Special design | As per your drawing AS, ANSI, BS, DIN and ISO ISO Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange |
| Specialized manufacturer of |
|
| Test | Hydrostatic testing machine, Direct-reading Spectrograph,UI trasonic flaw detector, X-ray detector, Magnetic particle detector |
| Equipment | Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc |
| Origin | West Europe /Indian / USA / Japan / Korean |
| ISO Flanges Standard | ANSI DIN, GOST, ISO, UNI, BS, AS2129, ISO, EN, SABS, NFE etc.
|
| Key markets and industries for ISO Flangeo |
|
| Export to | Indonesia, Ireland, Ukraine, Singapore,Saudi Arabia,Canada, Peru, Dubai, Brazil, Iran, Korea, USA, India, Egypt, Thailand, Spain, Oman etc |
| ISO Flanges Application |
|
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
ISO Flanges Flange Standards / Types and Pressure Class :
| ASME/ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
15mm (1/2") ISO Flange Weight Chart
Standard |
Class |
Diameter |
Bolt Circle Diameter |
Number of Bolts |
Bolt Size |
Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
AS4087 Flanges |
PN14 Flanges |
95 |
67 |
4 |
M12 |
14 |
AS 2129 Flange |
Table C Flanges |
95 |
67 |
4 |
13 |
14 |
Table D Flanges |
95 |
67 |
4 |
13 |
14 |
|
Table E Flanges |
95 |
67 |
4 |
13 |
14 |
|
Table F Flanges |
95 |
67 |
4 |
13 |
14 |
|
Table H Flanges |
114 |
83 |
4 |
16 |
17 |
|
Table J Flanges |
114 |
83 |
4 |
16 |
17 |
|
ANSI B16.5 Flanges |
ANSI 150 Flanges |
89 |
60 |
4 |
13 |
16 |
ANSI 300 Flanges |
95 |
67 |
4 |
13 |
16 |
|
ANSI 600 Flanges |
95 |
67 |
4 |
13 |
16 |
|
ANSI 900 Flanges |
121 |
83 |
4 |
19 |
22 |
|
ANSI 1500 Flanges |
121 |
83 |
4 |
19 |
22 |
|
ISO 7005 (DIN) Flange |
PN6 Flanges |
80 |
55 |
4 |
M10 |
11 |
PN10 Flanges |
95 |
65 |
4 |
M12 |
14 |
|
PN16 Flanges |
95 |
65 |
4 |
M12 |
14 |
|
PN20 Flanges |
90 |
60.5 |
4 |
M14 |
16 |
|
PN25 Flanges |
95 |
65 |
4 |
M12 |
14 |
|
PN40 Flanges |
95 |
65 |
4 |
M12 |
14 |
ISO 6164 PN16 Flange |
|
ISO 6164 PN16 Ring Type Joint Flange |
ISO 6164 PN16 Square Flange |
ISO 6164 PN16 Weld Neck Flange |
ISO 6164 PN16 Socket Weld Flange |
ISO 6164 PN16 Blind Flange |
ISO 6164 PN16 Reducing Flange |
ISO 6164 PN16 Slip-On Flange |
ISO 6164 PN16 Threaded Flange |
ISO 6164 PN16 Orifice Flange |
ISO 6164 PN16 Forged Flange |
ISO 6164 PN16 Lap Joint Flange |
ISO 6164 PN16 Plate Flange |
ISO 7005 Sbc Header Flanges |
ISO 7005 Raised Face Blind Flanges |
ISO 7005 Wnrf Flanges |
ASME ISO 7005 Reducing Flanges |
ISO 7005 Turbo Flanges |
ISO 7005 Forged Flanges |
ISO 7005 Threaded Reducing Flanges |
ISO 7005 Reducing Flanges |
ISO 7005 Vacuum Flanges |
ISO 7005 Reducing Flange |
ISO 7005 Split Flanges |
ASME ISO 7005 Blind Flanges |
ISO 7005 Slip-On Pipe Flanges |
6162 ISO Blind Flange |
ISO 7005 Square Flanges |
ISO 7005 Ansi Flanges |
ISO 7005 Reducing Flanges |
6162 ISO Forged Flange |
ISO 7005 Split Flanges |
6162 ISO Reducing Flange |
Ansi 150 ISO 7005 Flanges |
ISO 7005 JIS BLRF Flanges |
ISO 7005 Bsp Flanges |
ASME ISO 7005 Orifice Flanges |
ISO 7005 Class 150 Flanges |
ISO 7005 Duct Flanges |
ISO 7005 Cover Flanges |
ISO 7005 Orifice Flanges |
ISO 7005 Blank Flanges |
ISO 7005 Orifice Flanges |
ISO 7005 Companion Flanges |
6162 ISO Orifice Flanges |
Custom ISO 7005 Flanges |
ISO 7005 Socket weld Flanges |
ISO 7005 Din Flanges |
6162 ISO Socket weld Flanges |
Table E ISO 7005 Flanges |
ASME B16.5 6162 ISO Socket weld Flanges |
ISO 7005 Floor Flanges |
ISO 7005 Threaded Flanges |
Class 600 ISO 7005 Flanges |
ASME ISO 7005 Socket weld Flanges |
Large Diameter ISO 7005 Flanges |
ISO 7005 SWRF Flanges |
ISO 7005 Forged Flanges |
ASME ISO 7005 Threaded Flanges |
Gaskets For ISO 7005 Flanges |
6162 ISO Threaded Flanges |
High Pressure ISO 7005 Flanges |
ISO 7005 Threaded Flanges |
ISO 7005 Long Weld Neck Flanges |
ISO 7005 Long weld Neck Flanges |
ISO 7005 Handrail Flanges |
ISO 7005 fastenersonline Flanges |
ISO 7005 Pipe Flanges |
ISO 7005 Raised Face Slip On Flanges |
ISO 7005 Exhaust Flanges |
ASME ISO 7005 Slip On Plate Flanges |
ISO 7005 Lap Joint Flanges |
ISO 7005 Threaded Flanges |
ISO 7005 Plate Flanges |
ISO 7005 Pipe Flanges |
ISO 7005 Backing Flanges |
ISO 7005 Exhaust Flanges |
ISO 7005 Header Flanges |
6162 ISO Slip On Flanges |
ISO 7005 Metric Flanges |
ASME ISO 7005 Long weld Neck Flanges |
ISO 7005 Muffler Flanges |
6162 ISO Long weld Neck Flanges |
ISO 7005 Tube Flanges |
ASME ISO 7005 Header Flanges |
ISO 7005 Pressed Flanges |
ISO 7005 Ring Type Joint Flanges |
ISO 7005 Puddle Flanges |
ASME ISO 7005 Ring Type Joint Flange |
ISO 7005 Pad Flanges |
6162 ISO RTJ Flanges |
ISO 7005 Pump Flanges |
ISO 7005 Orifice Flanges |
ISO 7005 Raised Face Flanges |
ISO 7005 RTJ Flanges |
ISO 7005 Stub End Flanges |
ISO 7005 Raised Face Weld Neck Flanges |
ISO 7005 Reducing Flanges |
JIS RTJ Flanges |
ISO 7005 Shower Rod Flanges |
ISO 7005 Sae Flanges |
ISO 7005 Slip On Flanges |
6162 ISO Weld Neck Flange |
ISO 7005 Ring Flanges |
BS4504 ISO 7005 RTJ Flanges |
ISO 7005 Screwed Flanges |
ISO 7005 Clad Flanges |
ISO 7005 Socket Weld Flanges |
ISO 7005 JIS WNRF Flange |
Flange Schedule/Class |
Pipe Size - Pipe Flanges |
Flange Connection Type |
Flange Material |
Max. Pressure |
|---|---|---|---|---|
ASME B16.5 Class 150 |
1/2" |
FNPT |
ISO |
150 psi |
ASME B16.5 Class 150 |
1/2" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
1/2" |
Welded |
ISO |
150 psi |
ASME B16.5 Class 150 |
3/4" |
FNPT |
ISO |
150 psi |
ASME B16.5 Class 150 |
3/4" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
1-1/4" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
1-1/2" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
2" |
FNPT |
ISO |
150 psi |
ASME B16.5 Class 150 |
2" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
2-1/2" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
3" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 150 |
4" |
FNPT |
ISO |
150 psi |
ASME B16.5 Class 150 |
4" |
Socket Weld |
Forged ISO |
275 psi |
ASME B16.5 Class 300 |
1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1-1/4" |
FNPT |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1-1/4" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1-1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
1-1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
2-1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
2-1/2" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
3" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
3" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
4" |
Slip On |
Forged ISO |
720 psi |
ASME B16.5 Class 300 |
4" |
Slip On |
Forged ISO |
720 psi |
