Ready-to-Install Solution

Pre-fabricated ductile iron pipe with factory-welded flanges at both ends, designed for above ground or exposed piping systems requiring rigid connections.
Product Features
Factory-assembled flanges eliminate on-site welding labor and inspection
Threaded or welded flange attachment to pipe barrel per customer specification
Short spool lengths ideal for valve connection, meter installation, or pipe repair
Full internal lining continuity from flange face to flange face
Drilled flange ends allow direct bolting to mating equipment without adapters
Available in custom cut lengths for exact fit in existing pipeline networks
Product Parameters Table
|
Parameter |
Specification |
|
Product Name |
Double Flanged Pipe |
|
Size Range |
DN80 - DN1000 |
|
Material |
Ductile Iron 500-7 |
|
Pressure Rating |
PN10/16/25 |
|
Flange Standard |
ISO 7005-2 |
|
Face Type |
Raised Face (RF) |
|
Coating |
Epoxy Coating |
|
Standard Length |
1m, 2m, 3m, 6m |
|
Bolt Holes |
According to standard |
Application
Pump station discharge and suction headers where flanged connections are standard
Above ground process piping in water treatment plants
Temporary bypass lines for pipeline maintenance or repair
Indoor piping inside valve chambers and pump houses
Pipe connections to flanged equipment such as strainers, check valves, and flow meters

Materials
Pipe Barrel: Ductile iron EN-GJS-400-15 (ISO 1083)
Flanges: Ductile iron or forged carbon steel per customer choice
Internal Lining: Portland cement mortar (ISO 4179) or fusion bonded epoxy
External Coating: Zinc plus blue or black bitumen (ISO 8179)
Gaskets: EPDM or NBR flat ring supplied with each flange end
Standards
ISO 2531 for ductile iron pipe dimensions
EN 545 for potable water applications
EN 1092-2 for PN-rated flange dimensions
AWWA C115 for threaded flange connections on ductile iron pipe
Main Advantages
Ready for installation
Saves installation time
Reduces connection points
Improves system reliability
Handles high pressure
Minimizes maintenance needs
Ensures long service life
Packaging Details
We protect both flanges carefully. Plastic caps cover flange faces. Wooden cradles support pipes. Steel straps secure packages. We mark center of gravity. Weather proof wrapping included.
Service Commitment
We provide technical support. We offer installation guidance. We supply spare parts. We respond within 24 hours. We solve problems quickly. We guarantee customer satisfaction.
Why Choose Our Pipes
Our double flanged pipes save money. They reduce installation time. They minimize potential leaks. They improve system safety. They ensure operational efficiency.
Contact us today for quotes. Get ready-to-install solutions. Our experts provide support. We ensure fast delivery. Trust our quality products. Experience the difference.
We maintain large inventory. We offer various sizes. We provide custom lengths. We ensure quick shipment. We support global projects.
Double flanged pipes simplify planning. They reduce component count. They speed up construction. They lower total cost. They enhance system performance.
Choose our professional solution. Get quality double flanged pipes. Enjoy reliable service. Achieve project success.
Performance Testing

Individual hydrostatic test on every double flanged pipe before flange attachment
Flange face flatness inspection using straight edge and feeler gauge
Bolt hole alignment check with master drilling jig
Cement mortar lining holiday test using high voltage spark detector
Dimensional verification of pipe length and flange thickness by calibrated tape and micrometer



