FAQ
Frequently asked questions
Materials, sizes, applications, and installation for our conduit plugs, duct spacers, and caps.
Temporary Plugs
- What are temporary conduit plugs made of?
- They are molded from low-density polyethylene (LDPE) — a semi-pliable, high-impact, chemically inert material with very low moisture absorption that resists UV light, ozone, and wide temperature swings.
- What conduit sizes do temporary plugs fit?
- Twelve trade sizes from 1" (25 mm) to 8" (200 mm), covering standard duct and innerduct.
- How do the plugs stay in place and come back out?
- Tapered, scalloped ridges form a snap-in seal that resists accidental dislodging, while a flanged lip at the base makes removal easy.
- Can you pull a line through later?
- Yes — every plug has a built-in rope-tie so you can attach mule tape or pull-line for future access.
- Are they suitable for underground and outdoor use?
- Yes. LDPE's UV, ozone, and temperature resistance make these plugs well suited to demanding underground and outdoor environments.
Base & Intermediate
- What is a duct spacer used for?
- Conduit duct spacers position and support duct arrays in a trench before encasement or backfill, holding consistent horizontal and vertical separation between conduits.
- What duct sizes and separations do base and intermediate spacers cover?
- Eighteen sizes accommodate duct diameters from 2" (50 mm) to 8" (200 mm) with separation distances from 1.5" (40 mm) to 3" (80 mm).
- How do base and intermediate spacers differ?
- Base spacers sit on the trench floor as the bottom course; intermediate spacers stack and interlock above them to build additional layers of the duct bank.
- Do the spacers need banding?
- No. The two-piece design interlocks vertically and horizontally for fast, secure field assembly with no banding required, and stays in place under worker weight and during backfill.
- Can they be pre-assembled?
- Yes — pre-assembled configurations are available on request.
Clip Spacers
- What is a conduit clip spacer?
- A snap-in clip spacer organizes and holds HDPE or PVC conduit at fixed spacing in both exposed and underground installations, fed directly from the reel or cut to length.
- What configurations and sizes are available?
- 4-way and 6-way configurations accommodating conduit from 1" (25 mm) to 2" (50 mm).
- What material are clip spacers made from?
- ABS resin, which is warp-resistant and durable for a long service life.
- How long do they take to install?
- They snap in within seconds — no tools or banding required.
PVC End Caps
- What is a PVC conduit end cap?
- A PVC end cap is an injection-molded high-impact PVC cover that seals the open end of a conduit to keep out water, dirt, and debris during and after installation.
- What conduit types and sizes do the end caps fit?
- Eleven sizes from ½" (15 mm) to 6" (150 mm), fitting Schedule 40 & 80 and EB and DB conduit.
- Are PVC end caps suitable for direct burial?
- Yes — they are designed for both encased and direct-burial applications.
- Do they require tools to install?
- No. They install in seconds with no tools required, and the warp-resistant design keeps a consistent fit.
Riser Caps
- What is a conduit riser cap?
- A riser cap is a high-impact PVC conduit cap with a rope-tie loop on the underside, used to close a conduit opening while allowing mule tape or a pull-line to be tied off for future access.
- How is a riser cap different from a standard end cap?
- Both seal a conduit opening, but the riser cap adds an underside rope-tie loop for mule tape, making it ideal for stub-ups and risers where a line is pulled later.
- What sizes do riser caps come in?
- Sizes from 1.5" (40 mm) to 6" (150 mm), fitting Schedule 40 & 80 and EB and DB conduit.
- What are riser caps made of?
- Injection-molded high-impact PVC for a consistent, repeatable fit and durable, warp-resistant performance.