Custom Casing Spacers & Cluster Casing Spacer Systems
APS offers a proven solution with Casing Spacers to outperform the labor intensive, unreliable use of wooden skids.
APS manufactures custom casing spacers, casing insulators, and cluster casing spacers for water, wastewater, oil & gas, industrial, and utility applications. Our products center and support carrier pipes inside casings while providing long-term corrosion protection, electrical isolation, and easier installation. From single carrier pipelines to multiple carrier pipe clusters, APS designs solutions for virtually any casing application.
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Save Time & Labor
APS Casing Spacers eliminate the need to fill the casing annulus with sand which is extremely labor intensive. Sand in the annulus also acts as an electrolyte thereby introducing unwanted current to the steel or ductile iron.
Eliminating the annular fill allows for easy removal to repair or replace damaged pipes. With no need for this fill, APS Casing Spacers are your answer to lower installation costs with continued access for maintenance.
Installing Casing Spacers
Casing insulators are used to support and electrically isolate a pipeline from a casing pipe through which it must pass and are used in river crossings, canal crossings and bridge crossings as well as highway and railroad crossings.
APS also manufactures custom cluster casing spacers for projects requiring multiple carrier pipes or conduits within one casing. These engineered assemblies maintain proper spacing, simplify installation, and protect every carrier throughout the life of the crossing.
We recommend installation of casing spacers every 6 to 8 feet.
Options Available
STAINLESS (MODEL SSI) & CARBON STEEL (MODEL SI) SPACERS
Heavy duty two-piece stainless steel or carbon steel bands by APS serve virtually every piping application and should be utilized inside casing that is 2 or 3 pipe sizes larger than the carrier pipe.
APS steel band casing is available in two widths: 8″ width is recommended for carrier pipe 4″ to 24″; 12″ width for carrier pipes 26″ to 120″ and larger. The band is constructed of 14 gauge steel with a 90 mil EPDM liner. Stainless steel spacers are available in grade 304L. Carbon steel spacers are available with a thermoplastic powder coating for extra corrosion protection. Stainless steel and carbon steel spacers are available for pipe diameters 4″ – 144″.
INJECTION-MOLDED POLYETHYLENE SPACERS
APS casing insulators are manufactured from injection molded high density virgin polyethylene. Benefits of polyethylene include high impact strength as well as abrasion resistance.
Once installed, the low friction of polyethylene facilitates easy installation into the casing. Molded into the inner surface are grooves which prevent slippage of any carrier pipe coating.
APS casing insulators have excellent dielectric resistance and low moisture absorption which yields minimal electric current loss and no impairment of cathodic protection. Sizes are available from 1″ through 60″ with a standard runner height of 1″. Casing insulators from 1″ through 12″ comprise two halves; two pi and four pi sections make up 14″ and above. APS casing insulators are lightweight, economical and easy to install. Only a screwdriver is required for installation.
CUSTOM FABRICATION
APS is capable of manufacturing casing spacers and end seals for specific customer requirements. Our engineering staff has experience in the following:
APS … The Leader For Cluster Casing Spacers
Cluster Casing Spacers for Multiple Carrier Pipes
APS manufactures custom cluster casing spacers for projects requiring multiple carrier pipes, conduits, or cables within a single casing. Unlike standard casing spacers designed for one carrier pipe, cluster spacers securely position multiple utilities while maintaining proper spacing, protecting each line during installation, and providing long-term support.
Our engineering team designs every cluster casing spacer specifically for the project requirements, ensuring proper load distribution, carrier separation, and clearance inside the casing. APS has successfully supplied cluster spacers for as many as 24 carrier pipes within a single casing, making them an ideal solution for complex utility crossings and infrastructure projects.
Applications
APS Cluster Casing Spacers are commonly used for:
- Multiple water lines
- Utility conduit crossings
- Electrical conduit installations
- Fiber optic conduit systems
- Communication cable crossings
- Municipal utility projects
- Industrial facilities
- Energy infrastructure
Custom Engineered for Your Project
Every installation is different. APS engineers design cluster casing spacers based on:
- Number of carrier pipes
- Carrier pipe diameters
- Casing inside diameter
- Required spacing between carriers
- Load requirements
- Centered or offset configurations
- Project-specific installation requirements
Whether your project requires two conduits or more than twenty carrier pipes, APS can provide a custom-engineered cluster solution designed for reliable installation and long service life.