Self-anchored joint ductile iron pipe

The self-anchored pipeline adopts a special mechanical design, the ring welded on spigot end to realize the reliable  anchoring performance, while retaining the flexibility of the joint and featuring good deflection performance， so it can replace the function of restraining block and realize the design of non-restraining block。It is mainly  used in the case that space, time or economic conditions are not suitable for the setting of restraining block; that  there is a certain foundation settlement, or the slope of pipelines laid on the ground exceeds 20% or the slope of  underground pipelines exceeds 25%.

The axial stress at the socket end is transmitted to the socket through the socket  retaining ring, flange, bolt, etc., thus realizing the transmission of axial stress and  making the interface have anti-slip ability.

Standard:ISO2531, EN545, EN598.

Class:K class, C class

Joint type: Self-anchored type joint

Range:DN80-DN2600

Length:8.15m, 6.0m, 5.7m and accordance with customers'requirements

Application:Water supply project drainage,sewageirrigation, water pipoline,otc

Internal Coating: Portland cement mortar lining;

Sulphate Resistant cement mortar lining;

High-Aluminum cement mortarining;

Fusion bonded epoxy coating;

Polyurethane lining Ceramic epoxy lining PU;

The coating can also be accordance with customersrequirements

Extenal:Zinc(130g/m2)+bitumen(70microns)painting/130g/m2;

Fusion bonded epoxycoating/Zinc-aliminium alloy (400g/m2)+liquid epoxy painting/400g/m2;

The coating can also be accordance with customersrequirements.

Accessories:Rubber ring (SBR,NBR,EPDMVSBR,NBR,EPDM

Packing:Bulks, Steel belts bundles.