Dimensional Reference Table – mm

Class 150 common flange drilling reference. Outside diameter, bolt-hole diameter and bolt circle diameter are shown in millimetres.

Dimensions are in mm. NPS denotes nominal pipe size. Bolt-hole entries show the hole count followed by the hole diameter. Confirm final dimensions against the applicable standard and approved drawing.

This is not a stocked-size list. Bore, hub, thickness, thread, socket and facing are configuration-specific. Confirm the required standard edition and approved drawing before procurement.

Long Neck Dimensional Reference

The supplied catalogue includes a DIN 28115 PN10 long neck welding flange geometry table. This is a specific DIN drawing family, not dimensional equivalence to an ASME long weld neck nozzle. Dimensions below are in millimetres; mass is the catalogue reference in kg. Service-pressure values are not reproduced as an operating approval.

Symbols follow the supplied DIN drawing: confirm their geometry and the required standard edition against your project drawing. Do not use this table to approve pressure, temperature, material or nozzle design. The PN25 variants and complete dimensional drawings remain in the cleaned reference PDF.

Flange Facing Reference Table

The supplied EN 1092-1 reference distinguishes the following facing families. A facing designation is separate from flange attachment type. This table does not classify the product photograph as a specific EN facing.

For a groove enquiry, supply the mating face, groove width, depth, diameter and gasket drawing. For FF enquiries, confirm the required flat face, flange type and joint design. Facing dimensions and surface-finish limits depend on the selected standard and drawing; they are not inferred from the name alone.