Horizontal Directional Drilling (HDD) with Fusible PVC

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Horizontal Directional Drilling

Process

Guided pilot hole is drilled along a bore path under the obstruction, or per the required alignment
Drilling fluids are used in the bore hole to stabilize and lubricate the operation
Various reamers may be used to enlarge the pilot hole
Multiple passes may be required to accommodate the required pipe OD
Drilled bore hole is typically enlarged to 1.5 x OD of new pipe
Joined pipe is pulled back after bore hole preparation is completed
Drilled holes are stable for a limited time. Entire fused lengths are typically pulled in at one time, with no interruptions

Guided pilot hole is drilled along a bore path under the obstruction, or per the required alignment.Drilling fluids are used in the bore hole to stabilize and lubricate the operation. Various reamers may be used to enlarge the pilot hole. Multiple passes may be required to accommodate the required pipe OD. Drilled bore hole is typically enlarged to 1.5 x OD of new pipe
Joined pipe is pulled back after bore hole preparation is completed. Drilled holes are stable for a limited time. Entire fused lengths are typically pulled in at one time, with no interruptions

Advantages

Smaller Bore Hole: Fusible PVC™ will require a smaller bore hole diameter than other pipe systems. A smaller bore-hole diameter means that there will be less back reaming, less drilling mud, and less spoil disposal.
Safe Pulling Allowance: Fusible PVC™ has a safe pulling allowance that is significantly greater than that of most other pipe systems. This facilitates longer or more difficult installations with Fusible PVC™.
Lower Material Weight: Fusible PVC™ will have a lower overall material weight than other pipe systems. This means that drilling equipment size and cost may be lower, and pull-in lengths may be longer when installing Fusible PVC™.
Standard Fittings: Fusible PVC™ utilizes standard mechanical joint fittings. No special fittings or equipment are required for connections. As a result, Fusible PVC™ is easy to connect to and maintain.
Immediate Reconnections: Fusible PVC™ may be reconnected to a system immediately after installation, with no "material relaxation time" required.