비표준 플랜지 DN8-DN4000-Emilymetal.com

비표준 플랜지

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.

크기

비표준 플랜지 : 1/4 ″ -160 ″

DN8-DN4000

재료:

탄소강 : ASTM A105, ASTM A105N, GB 20, C22.8.

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

스테인리스 강 : ASTM / ASME A182 F304-304L-304H-304LN-304N

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

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

저온 강 : ASTM / ASME A350 LF2.

고성능 강철 : ASTM / ASME A694 F42, F52, F56, F60, F65, F70

플랜지 직면 유형

미국 시리즈 : 평면 (FF), 올려 진 얼굴 (RF), 혀 (T), 그루브 (G), 암 (F), 수 (M), 링형 관절면 (RJ / RTJ)

유럽 시리즈 : Type A (Flat Face), Type B (Raised Face), Type C (Tongue), Type D (Groove), Type E (Spigot), Type F (Recess), Type G (O-Ring Spigot), H 형 (O 링 그루브)