BS EN 1514 is a series on flanges and their joints. Flanges and their joints are a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together.
BS EN 1514-7 specifies the construction, dimensions and marking of covered metal jacketed gaskets for use with flanges complying with EN 1092-1 for PN 2,5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100 up to and including DN 900.
Note: BS EN 1514-7 does not extend to covered metal jacketed based heat exchanger gaskets with pass bars or large vessel gaskets but, in the lack of a dedicated document for such gaskets, the principles set down may be applied to them.
BS EN 1514-7 on dimensions of covered metal jacketed gaskets is useful for:
Although the word 'flange' generally refers to the actual raised rim or lip of a fitting, many flanged plumbing fittings are themselves known as flanges. The covered metal jacketed gasket consists of a metal jacketed core and of covering layers stuck on both sides. All gasket sizes and classes are designed so that an applied uniform bolt stress of 200 MPa will correctly seat the gasket and offer the required level of the seal. Gaskets for which dimensions are specified are one of the designs shown in BS EN 1514-7.
Before ordering a gasket, it is recommended that the selection of the gasket type and materials should be made in consultation with the gasket supplier. This selection should take account of the fluid, the operating conditions, the properties of the gasket materials, the type and surface finish of the flange facing and the flange bolt loading. The information is supplied by the purchaser when ordering gaskets that include the number and part of this European Standard, i.e., EN 1514-7, gasket type, nominal size — DN, PN designation, whether an inner ring is required, and required gasket materials, or expected operating conditions for applications where the gasket manufacturer is required to select gasket materials. Using BS EN 1514-7 you can understand the construction, dimensions, and mark of covered metal jacketed gaskets for use with flanges.
EN 1514-7:2004