Rigid Flanged Joints

Valves and hydrants

A choice of rigid flanged joints

Ductile iron flanged joints are generally used in aboveground assemblies and installations in valve chambers. The assembly precision and the ability for easy dismantling of the joint makes it particularly suitable for surface installations, or accessible manhole chambers such as pumping stations, valve chambers, overhead mains, inspection ducts, reservoirs, and tanks.

Flanged joints are composed of two flanges, an elastomer joint gasket, and bolts, whose number and dimensions depend on the pressure resistance and DN. The seal is obtained by tightening the bolts, thus compressing the gasket. With DN ≤ 600 the flanges can be rotated, facilitating bolts insertion.

Benefits

  • High performance: the precision of assembly and the ability to assemble and dismantle the flanged joints in line are the hallmarks of rigid flanged joints.

Available products

  • Flange joint kit
  • Metal-reinforced gasket
Associated documents
Pictures and videos
  • Metal-reinforced gasket for flanged ductile iron valves and fittings
  • Metal-reinforced gasket for flanged ductile iron valves and fittings
Solutions

Resilient Seat Gate Valves

Resilient seat gate valves for water supply pipelines

Resilient seat gate valves are suitable for pipelines transporting drinking, raw or waste water with a temperature no higher than 60°C. The gate valves and the components that come into contact with drinking water comply with standard EN 1074-2 and the drinking water regulations of many countries respectively.

Composed of strong and durable ductile iron, resilient seat gate valves operate in two different ways:

  1. When fully opened: the gate completely frees the corresponding part of the valve’s body, allowing a passage of fluid; and

  2. When completely closed: the gate rests on its seat in the body of the gate valve, stopping the flow of fluid in the pipeline with total watertightness.

 

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See also

A butterfly valve and body made of ductile iron with an epoxy powder coating
Surface boxes for service connections or gate valves