FLANGED PIPES
Flanged pipe is supplied drilled to BS EN 1092-2:1997 or ISO 7005-2 PN16 as standard. If other flanged drilling should be required, please state the preferred drilling upon your inquiry.
This diagram illustrates the arrangement but not necessarily the correct number of bolt holes; refer to tables for the actual number. Flanged pressure pipelines are suitable for a wide range of industries and applications, primarily, pumping stations, treatment works, process plant and rising mains. Rigid and self anchoring, flanged joints give no provision for deflection, and therefore no external anchorage is required when changes in direction occur, or at blank ends. To give the flexibility when installing a flanged pipeline system, the use of flange adaptors is common practice.
The flanged joint offers a high strength and high pressure capability, making a ductile iron pressure pipeline an ideal cost effective material when used in the movement of sewage and water in above ground applications.
It is recommended that flanged pipe is not used in buried situations due to the risk of excessive bending moments. However, where flanges are buried directly in the ground, (i.e. flange adaptors), the bolts must be protected from corrosion by wrapping with a protective tape or coating to WIS 4-52-03.
Flanged joints are usually used for connecting valves, pumps and hydrants.
ROTATING FLANGE JOINTS
In addition to our range of fixed flanged fittings, we can offer a range of fittings with an adjustable rotating flange as per BS EN 545 and BS EN 1092-2.
The working pressure and corrosion protection options for the adjustable fitting are the same as the fixed flanged fitting range.
The adjustable flange offers all the advantages of a fixed flange but with additional advantages:
- Ease of
- Flexibility to orientate the pipeline on
- Interchangeable flange
- Improved delivery on PN10 drilling.
Double Flanged Pipes with Puddle Flange
Flanged Spigot Pipes with Puddle Flange