Hyspan
Barco ball joints are commonly used in steam hot water heating
systems because of their safety and reliability. When used in sets
of two or three they absorb thermal expansion or contraction by
the Off-Set method of lateral displacement. The
ball joints are installed in pipe run or loop oriented perpendicular
to the movement.
Main anchors are not required because the design of ball joints
reacts pressure thrust, and the flex torque reaction force is moderate.
Because of their ability to react pressure thrust
and absorb rotational and torsional motions, ball
joints are used for tank and building settlement, seismic isolation,
solar arrays, and piping displacement from wave motion. Hyspan Barco ball joints
are approved by Factory Mutual System for fire protection systems,
and they have been tested to 8.3 seismic simulation.
Company standards
and registrations include the ASME Boiler and Pressure Vessel Code
including a "U" stamp, the European Pressure Equipment
Directive and the Canadian Boiler and Pressure Vessel Registration.
The company is a member of the Expansion Joint Manufacturers Association.
Type N Style I Hyspan Barco Ball Joints have
evolved from the original ball joints that were developed by
Barco in 1908 to distribute steam from locomotives to passenger
cars for heating. The Type N Style I was developed in 1960. Since
that time thousands of Style I joints have been installed in
steam, hot water and chilled water distribution systems. Type
N Style I joints are available from 2 1/2" through 30" with
Hyspan Barco proprietary Compound 11 composition seals or Compound
24 glass filled Teflon® seals. Type N Style I joints have a
bolted retainer that permits seal adjustment or disassembly for
maintenance.
|