350MPA pipe cross fittings are used to join prestressed concrete pipes at intersections, branch connections and changes in pipe direction. These high pressure fittings enable the fabrication of industrial piping networks with prestressed concrete pipes that can withstand high internal pressures.
What Are 350MPA Pipe Cross Fittings?
The 350MPA rating indicates that the pipe cross fittings have a maximum working pressure of 350 megapascals or 50,763 pounds per square inch (psi). This high pressure capability makes the fittings suitable for applications that require prestressed concrete pipes.
Prestressed concrete pipes are reinforced with pre-tensioned steel wires or tendons to resist internal pipe pressures. They are commonly used for water transmission and sewage systems due to their strength, durability and long lifespan.
350MPA black pipe cross fitting allows prestressed concrete pipes to be joined at:
- Tee intersections
- Wye intersections
- Elbow joints
- Laterals or stubs
The fittings are typically made of grey cast iron with engineered porosity to match prestressed concrete pipes. They feature ductile iron flanges with bolt holes for connecting to matching prestressed concrete pipe flanges.
Advantages of 350MPA Pipe Cross Fittings
- Withstand high internal pressures up to 50,763 psi
- Compatible with prestressed concrete pipes
- Provide leak-proof joints for industrial pipelines
- Enable easy modification and extension of preexisting pipe networks
- Made from durable cast iron and ductile iron materials with abrasion resistance
- Require minimal maintenance over the lifespan of the pipes
Materials And Construction
- Grey cast iron housing – Provides structural strength to withstand high pressures. The cast iron is engineered to have a controlled porosity matching prestressed concrete pipes.
- Ductile iron flanges -Facilitate bolted connections to prestressed concrete pipe flanges. The ductile iron offers more flexibility and shock resistance.
- Bolt and Gasket Set – includes bolts, nuts and rubber gaskets to seal the joints between fittings and pipes. High quality bolts and nuts can withstand corrosive environments.
- Internal Coating – The fitting interiors are often lined with a special epoxy coating for abrasion resistance and corrosion protection.
- Exterior Coating – The exterior surfaces are coated to prevent corrosion from groundwater, soil and other conditions. Common coatings include epoxy, zinc or polyurea.