TrenchSafe Plastic Duct Bank Spacers
In modern underground utility construction, standard open-trench methods are often restricted by environmental regulations, existing infrastructure, or geographic obstacles. When your project transitions to Horizontal Directional Drilling (HDD) or jack-and-bore techniques, the structural demands on your spacers change significantly.
The Trenchless Difference: Standard spacers are designed to sit still; Bore Spacers are designed to move. During a pull, your conduit bundle faces intense axial tension and abrasive friction. TrenchSafe custom-fabricated plastic bore bank spacers act as a protective "sled," reducing pulling force while maintaining precise alignment.
Bore Spacers vs. Duct Bank Spacers
| Feature | Bore Spacers (Trenchless) | Duct Bank Spacers (Open Trench) |
|---|---|---|
| Installation | Pulled through a pre-drilled borehole. | Placed into an open-cut trench. |
| Durability | High; resists friction during the "pull." | Moderate; supports concrete weight. |
| Shape | Circular or Hexagonal (fits bore OD). | Square or Rectangular blocks. |
| Movement | Designed to slide/skid along the wall. | Designed to stay stationary and staked. |
Advanced Grout Flow Dynamics
A successful installation requires 100% encapsulation. Our custom spacers are engineered with specialized flow-through windows and contoured internal geometries to facilitate the movement of grout or thermal backfill.
- Eliminating "Shadowing": We prevent air pockets (shadows) from forming behind the spacer, which can otherwise leave conduits unsupported.
- Thermal Management: Ensuring 100% grout contact is vital for high-voltage lines to dissipate heat and prevent cable failure.
- Structural Bond: Optimized flow ensures the grout mechanically bonds the conduit bundle to the borehole wall for a stable utility run.
ePlastics Unique Technical Capabilities
As a full-service plastics distributor, we combine quality materials with expert fabrication to deliver spacers tailored to your needs. Our technical capabilities ensure you get a product that exactly matches your project requirements and arrives on site ready to perform. Here’s what we offer:
- Custom Sizing and Configuration: We manufacture spacers precisely to your design. Any conduit size, tiered layout, or separation pattern can be achieved. Virtually any configuration is possible, and each spacer is easily fabricated to meet the exact specifications of your project. Whether you need a unique hole layout for an unusual conduit arrangement or standard spacers for a large duct bank, we can produce the right solution
- High-Quality Materials: Our bore spacers and duct bank spacers are fabricated from premium industrial-grade plastics (such as HDPE, PVC, and Polypropylene) chosen for their high strength-to-weight ratio and durability. These materials are non-conductive and will not corrode or degrade over time, even when buried in concrete or soil. The result is a lightweight yet robust spacer that maintains its structural integrity in any environment
- Precision Fabrication: Using advanced CNC routing and cutting technology, we produce spacers with exact dimensions and smooth edges for easy handling. Each spacer is engineered for durability and consistency, ensuring it will fit your conduits perfectly and hold up to rigorous use. Our fabrication process emphasizes quality control at every step, so you receive spacers that meet all required tolerances and standards
- Fast Turnaround: We understand project timelines are critical. Thanks to our in-house manufacturing and large distribution network, we offer quick turnaround on custom orders
Material Performance
| Material | Best For | Friction Coefficient | Impact Resistance |
|---|---|---|---|
| HDPE | HDD and Long Trenchless Pulls | Lowest (Excellent sliding) | High (Will not shatter) |
| PVC / ABS | Open Trench & Short Jacking | Medium | Moderate |
| Polypropylene | High-Heat / High-Voltage Loads | Low | High |
Custom RFQ Checklist
Have these specifications ready for our fabrication team to ensure a perfect fit:
- [ ] Borehole Diameter (ID)
- [ ] Number of Conduits
- [ ] Conduit Outer Diameter (OD)
- [ ] Required Separation Distance
- [ ] Material Choice (HDPE, PVC, PP)
- [ ] Total Run Length (Linear Feet)
Contact Us
Ready to improve cable management and installation efficiency on your next project? Contact us today to request a quote or speak with a knowledgeable sales representative about our TrenchSafe bore spacers. Our team is here to help assess your project requirements, recommend the optimal spacer design and material, and provide a fast, competitive quote.
