PVC Conduit Fittings, Adaptors, Couplings and Glands โ A Simple Guide
PVC Conduit Fittings, Adaptors, Couplings and Glands โ A Simple Guide
Learn PVC conduit fittings in simple terms. Conduit accessories create a protected, serviceable cable route when each fitting is used for its intended transition or entry. This guide includes selection checks, common mistakes and relevant Whitehouse product...
Quick answer: Conduit accessories create a protected, serviceable cable route when each fitting is used for its intended transition or entry.
Why this matters
Customers often reach a product page after searching for one specification, but the correct result depends on how several specifications work together. Understanding the terms below helps prevent incompatible purchases, poor light quality and unnecessary replacement costs.
- Couplings join straight conduit lengths.
- Male adaptors connect conduit into threaded or knock-out entries when used with the correct locknut or enclosure arrangement.
- Boxes provide junction or draw points.
- Glands help secure and seal cable entries but must match cable diameter and enclosure requirements.
How to choose the right product
- Keep conduit size consistent through the route.
- Use sweeping bends or draw points where pulling becomes difficult.
- Deburr cut conduit before inserting conductors.
- Select UV-resistant or suitable outdoor materials where exposed.
- Maintain enclosure IP performance at every entry.
Relevant products from the Whitehouse range
The examples below were selected from active, in-stock products in the latest Whitehouse Lighting & Electrical catalogue. They are examples rather than universal substitutes: always match the exact base, voltage, dimensions, rating and application.
20MM PVC Male Adaptor
NUR โ a relevant active catalogue option. This product was active and in stock in the latest catalogue reviewed for this article. Confirm the current product page specifications and availability before ordering.
20MM Coupling PVC
NUR โ a relevant active catalogue option. This product was active and in stock in the latest catalogue reviewed for this article. Confirm the current product page specifications and availability before ordering.
WHL&E 20MM White PVC Universal Gland
Whitehouse Lighting And Electrical โ a relevant active catalogue option. This product was active and in stock in the latest catalogue reviewed for this article. Confirm the current product page specifications and availability before ordering.
Common mistakes to avoid
- Forcing too many conductors into undersized conduit.
- Using indoor fittings in exposed sunlight or weather without suitability.
- Leaving sharp cut edges that can damage insulation.
Frequently asked questions
What does a conduit coupling do?
It joins two straight pieces of conduit.
Why use a gland?
It secures a cable and can support sealing at an enclosure entry when correctly selected.
Can conduit be used as an earth conductor?
No. A proper protective conductor must be provided according to the installation design.
Safety note: Fixed wiring, distribution-board, solar PV and battery work can involve dangerous AC or DC voltages and high fault currents. Product selection and installation must be completed by a suitably qualified person using the manufacturer's instructions and applicable South African requirements.
Shop with the specification in mind
Start with the technical requirement, then compare finish, brand and price. Whitehouse Lighting & Electrical supplies lighting, solar and electrical products for homes, contractors and businesses throughout South Africa. Use the linked product pages above or contact the team with a clear photograph of the existing fitting, label or installation requirement.
Related reading: Surge protection for South African homes and IP68 Cable Connectors โ When an Outdoor Joint Needs More Protection
Technical references
Product availability and specifications can change. Verify the current product page and manufacturer documentation before purchase or installation.