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PlumbingVoid® Pipe
Isolation Systems

(U.S. Patent No. 10,267,012)

Plumbing Specifications CLICK HERE

PlumbingVoid® System  CLICK HERE

PlumbingVoid® Technical Notes CLICK HERE

PlumbingVoid® System Information CLICK HERE

 

The innovative PlumbingVoid® System is comprised of multiple components that, when assembled in sequential order, provide and ensure a void space completely around plumbing pipes under structural slabs. The system supports subterranean pipes during construction until the embed plates are permanently cast in place, preventing damaging soil pressures on pipes. The system is offered in three widths and three heights in order to accommodate a variety of slopes and pipe diameters. Each configuration temporarily suspends and fully isolates pipes from backfill and underlying, swelling soils, which can then expand into the empty space provided, thereby eliminating costly damage from broken, leaking pipes.

PlumbingVoid® consists of polypropylene plastic and #3 rebar. The polypropylene material is manufactured as a fluted plastic panel, having perpendicular supports connecting the exterior faces to form a supportive sheet. The simple insertion of U-shaped rebar into the open flutes of plastic retainers creates ridged side panels that resist lateral soil pressures. Interior supports are positioned to provide additional lateral support. Once the pipes have been sloped, clevis brackets are positioned at the top using U-shaped rebar pieces that space the side retainers and help anchor the clevis hangers in the slab. After the piping is inspected in the open trench, the inverted U-shaped polypropylene TopCap™ is placed over the top to complete the enclosure.

The waterproof PlumbingVoid® System has minimal contact with the soil on the bottom edge of its side retainers and the U-shaped rebar that spaces and supports them. The perimeter framework of the system resists later soil pressure and also supports the weight of backfill. The clevis hangers around the lateral pipes within the open space are connected to a threaded rod with nuts and washers (washers included). This assembly is vertically positioned and supported by two laterally spaced U-shaped rebar pieces that are secured into the open fluting of the side retainers. The height of each pipe can be adjusted and maintained at the proper elevation by the appropriate washer and nut positioned on top of these supports. Once the elevation and slope of the pipe is finalized and the piping network passes inspection, the TopCap™ cover is installed over the open area and the backfilling process can be completed. Compacting the backfilled trenches is not recommended.

The washer/nut assemblies at the vertical supports are able to temporarily support the weight of the lateral pipes during the entire construction process. If vertical pressure is applied to the bottom edges of the retainers and the rebar in contact with the soil, the washers will bend and pass between the spaced supports at the top. This design ensures that the lateral pipes are completely isolated from the PlumbingVoid® System. It eliminates any damage that could be caused by soil movement since the pipes are permanently suspended by only the embedded plates, treaded rods, and clevis hangers.

PlumbingVoid® Pipe Isolation Systems

(U.S. Patent No. 10,267,012)

Please contact our Fort Worth location at (888) 803-8643 for pricing or detailed information!

SPECIFIED

PlumbingVoid® is recognized by engineers as the best system for isolating pipes under slabs from damage caused by expansive soils. We continue to work with the design community to develop systems that are best suited to their needs on individual projects.

ADAPTABLE

The unique design of the PlumbingVoid® System allows for easy modification and adaptation in the field where challenging plumbing areas are found. Intersections, corners and sharp changes in elevation can be easily accommodated by slit-scoring, bending, stacking, and cutting the side panels to the needed position.

AVAILABLE WHEN YOU NEED IT

No need to wait for weeks, or even months, to receive your waterproof PlumbingVoid® components. With all sizes in stock and readily available, the PlumbingVoid® System can be shipped or delivered within a few days of ordering, directly to your yard or job location.

WATERPROOF

PlumbingVoid® System components are not affected by water that can accumulate in pipe trenches during and after construction. There is no fear of having to replace large amounts of saturated paper carton void forms. The system will perform as designed, and will not create project delays or additional expenses that can occur with corrugated paper void form replacement.

EASY TO INSTALL

PlumbingVoid® System components are easily assembled in sequential order over a 6″ gravel base to create an open space.  Once the suspended pipes are supported and positioned to the specified slopes inside the void space, the TopCap™ cover fits neatly over the abutted side panels and is removable to allow easy access for inspection before backfilling. 

CONVENIENT

From start to finish, your experience ordering the PlumbingVoid® System could not be easier. Product Advisors are readily available to recommend the appropriate components to meet your needs. These are then delivered directly to your job site or yard. It is important to understand the proper trenching requirements and the procedure of assembly before installation, in order to get the intended results.

FIELD-TESTED

PlumbingVoid® System components have been utilized with great success in the field. Contractors relay to us how quickly the system installed, and adjusting the pipes for proper elevation and slope couldn’t be easier. When confirmed the pipes were correctly suspended and separated from surrounding expansive soil, backfilling the trench to the upper surface completes the procedure.  It is not recommended to compact the trench once backfilled.

ELIMINATES COSTLY DAMAGE

As expansive soils swell, they exert uplift pressures.  The PlumbingVoid® System protects pipes from these soils and prevents pipe breakage. The PlumbingVoid® System is strong enough to retain the backfill and temporarily suspends pipe until the concrete slab sets around the embeds positioned at the top of the supports. If vertical pressures are applied to the system, the support bracket becomes isolated from the open constructed void space.

EASY TO STORE AND HANDLE

Most PlumbingVoid® System components are fairly thin and flat, delivered in neat, palletized bundles, which minimizes storage space. The fluted polypropylene panels and TopCap™ covers are lightweight and easy to handle. It is safe, user-friendly, and preferred among plumbing contractors. Unlike metal systems, special cutting tools and safety equipment to protect against hazardous, sharp edges are not required.

Click on the “Play” icon above to see an introductory video

on the PlumbingVoid® Pipe Isolation System.

Click on the “Play” icon above to see additional

details on the PlumbingVoid® System.

Click on the “Play” icon above to see the installation of

the PlumbingVoid® System in sequential order.

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Click on the arrows to browse through

pictures of the PlumbingVoid® System.

  • 1

    12″, 18″, 24″ U-shaped Rebar

  • 2

    Three Widths of 12″, 18″, and 24″
    Three Heights of 24″, 30″, and 36″

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    Connector

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    U-shaped Rebar and Connectors

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    Turned Over Unit

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    Top U-shaped Rebar

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    Connector at Base

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    Connector at Top

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    Two Sections Adjoined

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    Supported Pipe Within

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    12″, 18″, 24″ Flat End Caps

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    End Connectors

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    12″, 18″, 24″ TopCaps™

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    Covered End

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    Stacking Pin

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    Positioned Stacking Pin

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    Stacking Side Retainers

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    Stacked Side Retainers

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    Abutted Joint

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    Top view of abutted TopCaps™

  • 21

    Seam Pad over abutted TopCaps™

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Click on the arrows to browse through pictures

of the PlumbingVoid® System components.

Corporate Office:
750 W Hampden Ave, #510
Englewood, CO 80110
888-704-VOID (8643)
303-762-0324 (Local)

Colorado & National:
1895 W Dartmouth Ave
Englewood, CO 80110
888-704-VOID (8643)
303-762-0324 (Local)
North Texas:
6151 Cowley Road
Fort Worth, TX 76119
888-803-VOID (8643)
817-429-0888 (Local)

Central Texas:
5813 Distribution Drive
San Antonio, TX 78218
210-441-4110 (Local)
Southeast Texas:
8039 Humble Westfield Road
Humble, TX 77338
866-441-0315 (TFN)
281-768-7340 (Local)

Canadian Provinces:
52 Nicola Drive
Headingley, MB R4H 0A9
855-888-VOID (8643)
204-697-9080 (Local)
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