Casing Spacers - Stainless Steel - Galvanized Steel - Coated Steel
Pipe In Pipe Installation
Casing spacers with wheel rollers WA-SR model, for large pipe installation
Wheel rollers, transfer slide forces to the wheel rollers. The rollers may be steel or composite.
Leg heights are sized to fit requirements, e.g. centered, centered restraint or bell clearance considerations. Minimum leg height available is 50 mm.
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Introduction:
Casing spacers are devices used in pipeline construction to ensure that the carrier pipe is maintain in a consistent position in the casing. They prevent damage to the pipe during installation. Casing spacers are a cylindrical device that is placed around the outside of the carrier pipe and positioned within the casing.
Modern casing spacers are equipped roller wheels what greatly reduces forces during installation.
Casing spacers are typically made from steel or high-density polyethylene (HDPE) that can withstand the pressures and stresses of pipeline installation.
They are commonly used in oil and gas pipelines, water and sewage pipelines, and other types of buried infrastructure projects.
Casing spacers - long installation runs.
WA-CS-LR
WA-CS-LR Casing spacers with bushings, support heavy loads through long casing runs.
Casing spacer pipe bands are sized to fit all pipe OD in widths of 200 mm to 300 mm.
Larger directional wheels with axle bushings reduced coefficient of friction factors and allow improved installation speeds.
WA-CS-LR Casing spacers are fitted with two in-line roller wheels on each leg. Wheel diameters are selected based on load and distance requirements.
Six roller legs are equally spaced and compensate for any barrel roll moment that develops during installation. Six cluster legs assist when long horizontal radius or vertical bending in the pipeline casing. Even spaced legs and equal leg lengths allow load forces to be transfered to the top, bottom or side walls of the casing when bending of the casing is present.
Leg lengths vary based on customer requirements and load factors.
Advantages of using larger roller wheels with self axial bushings:
- Hardness of the axle
- Ultimate tensile 73200 psi
- Large roller wheels allow the spacers to pass over weld beads and joint imperfections.
WA-LR casing spacer leg lengths and roller wheel size are determined by many factors and are designed in consultation with the customer.
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Leading end casing spacers WA-LE units:
Leading edge wheel roller casing spacers offer extra protection for large heavy carrier pipes. Heavy force loads occur at the leading edge of a carrier pipe run.
Wheel runners reduce friction and hold the leading edge in a slightly up angled position. A disc rubber ring protects the carrier pipe from damage.
Leading spacers are slightly larger than the following spacers providing smooth travel over imperfections. The angled end horns assist the carrier pipe around any direction or elevation changes.
WA-LE casing spacers may be drill bolted and pull lines attached for a two force install.
Leading edge casing spacers are removed at the end of the installation.
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Casing spacers - for multi pipe carriers through the same casing.
WA-MP-CS
Friction reducing roller wheel casing spacers for multi pipe installation allow two or more pipes to be traveled through a single casing pipe.
Materials are galvanized steel or 304L stainless.
Designs are available for most requirements. Pipe or conduit with different diameters may be clustered in the same casing spacer.
WA-MP-CS cluster casing spacers using composite wheels, isolate the carrier pipe from the casing. Roller wheel legs and pipe carrier pods are designed for the required arrangement.
Roller wheel casing spacers reduce friction through the casing. Roller wheels may be steel material or composite material.
Casing spacer sizing is determine by the outside pipe diameter. Band clamp widths: can be 200 mm or 300 mm wide.
All American and International pipe sizes may be accommodated.
Note see* Non metallic roller casing spacers (with wheel runners) are available for all casing/carrier pipe applications.
Casing spacers Multi pipe: WA-MP-CS
Casing Spacers Insulators - wheel roller units.
See steel casing spacer concept design samples
Combination Multi pipe steel and HDPE casing spacers
See multi pipe hdpe casing spacers
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Casing Spacers for multi pipe clusters where fractional or small pipe diameter projects.
Friction reducing wheel roller legs. Solid block EDPM clamp casing spacers, with 304L stainless compression bands and PE wheel rollers.
Customized for requirements based on the number of pipes.
Multi-pipe cluster casing spacers accommodate two or more bundled pipes through the same casing.
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Pipe joint restrains - dual purpose wheel rollers - Pipe through casing
WA-CS-RS joint restraint casing spacers protect bell joints by distributing the load to the pipe bore.
Restraint casing spacers are available for all pipe sizes.
Materials:
Restraint Casing spacers materials may be galvanized steel material or 304L stainless steel. Bell/Spigot connection support.
Casing spacer restraint clamps reduce joint stress and resist pull back forces.
Casing Spacers with restraint rods are mounted at the joints to relieve joint installations forces. Non-Metallic casing spacers may be used in conjunction with the bell/spigot units.
Non-metallic casing spacers are mounted on the pipe at the mid-way point to prevent bending/sagging of the pipe.
Bell and Spigot restraints for concrete pipe.
Tightening bands and restraint rod combination add security for the Bell joints and assist with pull-out stability. The units are custom made for specific pipe and bell sizes.
Brief cut sheet restraint casing spacers
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Casing Spacers - grading adjustable leg heights. WA-AL- units
Casing spacers with adjustable leg heights position the carrier pipe at variable heights through the casing.
Grade flow through the carrier pipe is maintained if the casing is not on grade.
No leg top allows the band to set close to the top.
Centering insulators - Casing Spacer roller wheels reduce friction between the carrier pipe and the casing.
Wheel rollers reduce friction.
Application:
Carrier pipe not on grade through the casing.
Casing Spacers can be clamp fasten on all types of pipes; PE, PVC, STEEL, DI or CONCRETE, for any diameter range.
Casing spacers protect against damages to pipe coatings.
Casing Spacers are Installed without using specialist devices.
Roller wheel legs may be height adjusted from 50 up to 150 mm.
Casing spacers leg height adjustment models come in two halves and are clamped around the carrier pipe.
Casing spacers/insulators centering pipe in casing cut sheet - Download cut
Casing Spacers height adjustment legs - Download cut
See: Sample drawing of 30 inch (762mm) OD pipe spacer.
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READ MORE " Non-Metallic HDPE Casing Spacers"
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