Flange não padrão
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.
Tamanho
Flange não padrão: 1/4 ″ -160 ″
DN8-DN4000
MATERIAL:
Aço carbono: ASTM A105, ASTM A105N, GB 20, C22.8.
Liga de aço: ASTM / ASME A182 F1-F12-F11-F22- F5-F9- F91
Aço inoxidável: ASTM / ASME A182 F304-304L-304H-304LN-304N
ASTM / ASME A182 F316-316L-316H-316LN-316N-316Ti
ASTM / ASME A182 F321-321H, F347-347H
Aço de baixa temperatura: ASTM / ASME A350 LF2.
Aço de alto desempenho: ASTM / ASME A694 F42, F52, F56, F60, F65, F70
Tipo de revestimento de flange
Série América: Face plana (FF), Face elevada (RF), Língua (T), Ranhura (G), Fêmea (F), Macho (M), Face das juntas tipo anel (RJ / RTJ)
Série Europa: Tipo A (face plana), tipo B (face elevada), tipo C (língua), tipo D (ranhura), tipo E (espigão), tipo F (rebaixo), tipo G (espigão O-ring), Tipo H (ranhura do anel O)
Pressão
Série América: Classe 150, Classe 300, Classe 600, Classe 900A, Classe 1500, Classe 2500.
Série Europa: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400.
PADRÃO
Nosso flange fora do padrão pode ser produzido com base no padrão comum e fazer algumas alterações de acordo com a exigência de nossos clientes.
ASME ANSI B16.5, ASME ANSI B16.47.
API 605, API 6L.
MSS SP 44
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
ISO7005-1
AS2129
JIS B2220
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090
Processo industrial
Forjamento de matriz, usinagem.
Aplicação para flange não padrão
Gás natural, químico, petróleo, construção naval, marítima, fabricação de papel, metalurgia, elétrica, energia, caldeira, etc.
