Viking Johnson - Dismantling Joint
The Dismantling Joints are double flanged fittings that accommodate up to 100mm (4”) 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 and the tie bars acting as flange jointing bolts theprocess is speeded up but still offers a secure, rigid, fully endload resistant system with a pressure rating equal to that of the flange.
The Range
A comprehensive range is available from DN40 (1½”) to DN2400 (80”) with virtually any flange drilling or pressure rating supplied, although larger sizes and custom made Dismantling Joints can be designed and built on request.
- The simplicity and versatility of the fittings make them suitable for many applications including pumping stations, water treatment works, sewage treatment works, plant rooms, meter chambers, power generation equipment, gas distribution stations.
- Viking Johnson’s Dismantling Joints are particularly suitable for simplifying the installation & removal of isolation valves, control valves, check valves, non-return valves, flow metering valves, pump sets, pressure reducing valves, flanged pipe & fittings.
- Designed and manufactured to BS EN ISO 9001: 2008 and tested to the most exacting requirements of WRAS (Water Regulatory Advisory Scheme) for use with potable water.
For applications where a full-face flange is required,i.e. wafer and butterfly valves, the flange of the spigot piece provides a full flange sealing area.
Excellent Corrosion ProtectionThe 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.
Ultimate Sealing CapabilityThe EPDM gasket is compressed independently of the tie bars with the sealing capability secured as soon as the fasteners reach required torque..
Simple to FitHarnessing is accommodated within the bolt circle, eliminating other complex anchoring systems and reducing space requirements.