Pipe Repair products offer a fast, safe way to seal splits, holes, and corroded sections instantly – often under full system pressure – avoiding the need for expensive and time-consuming network shutdowns.
Dismantling Joints provide fully restrained double‑flanged connections with up to 100mm adjustment (size dependent), using high‑tensile tie rods to simplify installation while delivering full end‑load restraint for reliable pipeline integration.
Pressure Ratings
WaterWaste Water
Size Range = DN40 to DN4000
Working Pressure = Up To 46 Bar (Size dependant)
Flange Drilling = Standard PN10 & PN16, with others on request
Gas
Size Range = DN50 to DN1000
Working Pressure = 6 Bar
Flange Drilling = Standard PN10 & PN16, with others on request
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Dismantling Joint
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Developed for Complete Versatility
Designed for You
The Dismantling Joint range was developed to provide greater versatility for the designer at the planning stage and the engineer in the installation stage of flanged pipe work systems and to allow for simple maintenance programmes.
Allows for Adjustment
The Dismantling Joints are double flanged fittings that accommodate up to 100mm longitudinal adjustment and can be locked at the required length with the tie bars supplied. Not only does this system allow for fast, easy maintenance of valves, pumps or meters, it simplifies future pipe work modifications and reduces downtime when changes need to be made.
Easy to Install
The installation is also straightforward using just a spanner and torque wrench to tighten the high tensile steel or stainless steel tie bars. With fewer tie bars than flange holes that also act as flange jointing bolts, the installation process is quick and easy while offering a secure, rigid, fully end load resistant system with a pressure rating equal to that of the flange.
The Range
A comprehensive range is available from DN40 to DN4000 with virtually any flange drilling or pressure rating supplied. Larger sizes and custom made Dismantling Joints can be designed and built on request.
Why Choose Dismantling Joints
Ideal for valve installation and removal – Perfect for simplifying the fitting or replacement of isolation, control, check, non‑return and metering valves, as well as pumps, pressure‑reducing valves, flanged pipe and fittings.
Versatile across multiple sites – The simple, adaptable design suits pumping stations, water and sewage treatment works, plant rooms, meter chambers, power generation sites and gas distribution facilities.
Improved installation access – Independent studs compress the gasket using smaller diameters than flange bolts, giving operatives better access during installation.
Reduced tie‑rod requirements – High‑tensile steel tie rods minimise the number needed to manage end‑load forces, making installation faster and easier in tight spaces or congested chambers.
Design Benefits
Full Flange Sealing
The flange of the spigot piece provides a full flange sealing area, making it ideal for applications where a full face flange is required, e.g. wafer and butterfly valves.
Longitudinal Adjustment
Longitudinal adjustment facilitates installation and removal of flanged equipment.
Independent Gasket Tightening
Studs independent of the tie rods compress the gasket ensuring long term sealing performance that is not effected due to any external loading.
Reduced Weight
The use of high tensile steel in the tie rods reduces the number required to accommodate end load forces, reducing the overall weight of the product.
Excellent Corrosion Protection
The flange adaptor and flange spigot are coated with WRAS approved Rilsan Nylon 11 providing excellent protection from transport, storage, site and corrosion damage. The tie bars are Zn3 Zinc Plated as standard with other coatings, grades and finishes available on request. The nuts and bolts are Sheraplex coated to WIS-4-52-03, offering long term protection against corrosion.
Compact Design
Harnessing is provided within the bolt circle, eliminating other complex anchoring systems and reducing space requirements.
Water
Waste Water
Gas
