Bride non standard DN8-DN4000

Bride non standard

Non-standard flanges will only be used in cases where pressure, temperature and size requirements exceed the capabilities of standard flanges. Keep in mind that non-standard flanges require calculation, design and special manufacturing procedures, which is why they are chosen only as a last resort. The most common such applications are large equipment flanges and heat exchangers body flanges.

Non-standard flanges are designed and calculated according to ASME VIII Div.1 Appendix 2 and Appendix S, and according to ASME VIII Div.2 part 4.16.

Design criteria
Rules for the design of bolted flange connections as described in Div.1 Appendix 2 apply to flanges with gaskets placed entirely within the circle enclosed by the bolt holes and with no contact outside this circle.

This method is applicable to circular flanges under internal pressure and takes into account only hydrostatic end loads and gasket seating loads. Rules have been further modified so that they can be applied to the design of flanges under external pressure, reverse flanges and flanges with nut stops.

Design procedure for large diameter, low pressure flanges shall be supplemented by methods other than the code e.g.: check flange rotation. Flanges greater than 60 inches (1524 millimeters) inside diameter and designed for up to 100 psig (689 KPa) pressure fall under this category.



Bride non standard: 1/4 "-160"



Acier au carbone: ASTM A105, ASTM A105N, GB 20, C22.8.

Acier allié: ASTM / ASME A182 F1-F12-F11-F22- F5-F9- F91

Acier inoxydable: ASTM / ASME A182 F304-304L-304H-304LN-304N

ASTM / ASME A182 F316-316L-316H-316LN-316N-316Ti

ASTM / ASME A182 F321-321H, F347-347H

Acier basse température: ASTM / ASME A350 LF2.

Acier haute performance: ASTM / ASME A694 F42, F52, F56, F60, F65, F70


Type de face de bride

Série America: Face plate (FF), Face surélevée (RF), Languette (T), Rainure (G), Femelle (F), Mâle (M), Face de joints de type anneau (RJ / RTJ)

Série Europe: Type A (Face plate), Type B (Face surélevée), Type C (Languette), Type D (Rainure), Type E (Spigot), Type F (Recess), Type G (O-Ring Spigot), Type H (rainure pour joint torique)


Série America: Classe 150, Classe 300, Classe 600, Classe 900A, Classe 1500, Classe 2500.

Série Europe: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400.


Notre bride non standard peut être produite sur la base de la norme commune et apporter des modifications conformément aux exigences de nos clients.


API 605, API 6L.


CSA Z245.12

EN1092-1, EN1759-1.

DIN2630, DIN2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638.

BS1560, BS 4504, BS 10.

AFNOR NF E29-200-1



JIS B2220

UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090

Processus industriels

Die forgeage, usinage.

Demande de bride non standard

Gaz naturel, chimique, pétrole, construction navale, marine, papeterie, métallurgie, électricité, électricité, chaudière, etc.