20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings
20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings
20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings
20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings
20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings
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20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings

20-90mm PVC Female Threaded Straight Coupling Socket Hex Pipe Connector Fittings

HomeDIYer
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By HomeDIYer®

Price:
$1.75 USD
Stock:
In stock (500 units), ready to be shipped

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Description

PVC Female Threaded Straight Coupling Socket — Leak-Free Hex Pipe Connections Made Easy

Struggling with leaky pipe joints or fittings that strip under wrench pressure? Builders, plumbers, and DIY enthusiasts working on water supply lines, irrigation systems, or drainage runs need a coupling that holds tight without cracking. These PVC female threaded straight coupling sockets deliver a secure, tool-assisted connection with a hex body profile designed for wrench engagement — no slipping, no guesswork.

Each coupling is molded from rigid PVC (polyvinyl chloride) with female BSP threads on both ends, available in sizes ranging from 20mm (½") to 110mm (4"). The hex-shaped outer body provides flat wrench surfaces for controlled tightening. Offered in White, Blue, and Grey finishes to support color-coded piping systems or aesthetic matching.

Typical applications include residential cold water supply lines, garden drip irrigation manifolds, pool and spa plumbing connections, and industrial process piping where a straight inline coupling is needed. Long-tail use cases: "PVC threaded pipe coupling for irrigation," "hex socket pipe fitting for water supply," "female BSP straight connector for plumbing repair."

🔗 Compatibility: Fits standard BSP (British Standard Pipe) female threads. Suitable for cold water, irrigation, and low-pressure applications. Not rated for hot water or high-pressure steam lines. Verify thread standard before ordering.

✅ Key Features of These PVC Female Threaded Straight Coupling Sockets

🔩 Hex Body for Wrench Grip

The six-sided outer profile allows a standard adjustable wrench or pipe wrench to seat firmly, enabling controlled torque without the fitting spinning or deforming.

💧 Female BSP Threads Both Ends

Dual female threaded sockets accept male-threaded pipe ends or nipples on both sides, creating a straight inline coupling for extending or joining pipe runs.

📐 Wide Size Range: 20mm–110mm

Nine diameter options from 20mm (½") to 110mm (4") cover the majority of residential and light commercial plumbing and irrigation pipe sizes in a single product line.

🎨 Multi-Color Finish Options

Available in White, Blue, and Grey — enabling color-coded piping systems for easy identification of line type, zone, or flow direction in complex installations.

🛡️ Corrosion-Resistant PVC Construction

Rigid PVC resists rust, scale, and chemical degradation from common water treatment additives, making these couplings suitable for long-term buried or exposed installations.

📦 Flexible Pack Quantities

Order as single pieces or in packs of 2, 4, 10, or 20 to match project scale — from a single repair to a full irrigation manifold build-out.

📐 Technical Specifications — PVC Threaded Pipe Coupling

Material Rigid PVC (Polyvinyl Chloride)
Connection Type Female BSP Thread × Female BSP Thread (straight)
Body Shape Hexagonal (Hex) for wrench engagement
Size Range 20mm (½") — 110mm (4")
Available Sizes 20mm, 25mm, 32mm, 40mm, 50mm, 63mm, 75mm, 90mm, 110mm
Color / Finish White, Blue, Grey
Thread Standard BSP (British Standard Pipe)
Application Cold water supply, irrigation, drainage, pool plumbing
Pressure Rating See variant options
Temperature Rating Cold water use; not rated for hot water or steam
Pack Quantity Options 1pcs, 2pcs, 4pcs, 10pcs, 20pcs
Weight (per piece) See variant options

❓ Frequently Asked Questions

How do I choose the right size coupling for my pipe?

Match the coupling size to your pipe's outer diameter or nominal pipe size. The size options listed (20mm, 25mm, 32mm, etc.) correspond to standard BSP nominal pipe sizes. For example, 20mm = ½" BSP, 25mm = ¾" BSP, 32mm = 1" BSP. If unsure, measure the male thread OD on your existing pipe or fitting and compare to BSP thread tables.

Are these couplings suitable for hot water lines?

No. These are rigid PVC fittings rated for cold water applications only. PVC softens at elevated temperatures and is not suitable for hot water supply, heating systems, or steam lines. For hot water use, consider CPVC or brass fittings rated for higher temperatures.

How strong are PVC threaded couplings — will they crack under pressure?

Rigid PVC has good tensile strength for cold water and irrigation pressures. The hex body design allows controlled wrench tightening, which reduces the risk of over-torquing and cracking compared to round-body fittings. Always use PTFE thread tape on the male threads before assembly to achieve a leak-free seal without excessive force. Avoid impact tools.

Do these fittings resist corrosion and chemicals?

Yes. PVC is inherently resistant to rust, scale, and corrosion. It also tolerates common water treatment chemicals such as chlorine at typical municipal concentrations. For aggressive chemical environments, verify PVC compatibility with the specific chemical before use.

What is the difference between the White, Blue, and Grey color options?

The color options are functionally identical — the difference is purely visual. Color-coding is commonly used in multi-zone irrigation systems, industrial piping, or anywhere you want to visually distinguish line types (e.g., blue for water supply, grey for drainage). Choose the color that matches your existing fittings or your color-coding convention.

Which pack size should I order?

For a single repair or replacement, the 1pcs option is ideal. For irrigation manifold builds or multi-point connections, the 4pcs, 10pcs, or 20pcs packs offer better per-unit value. The 2pcs pack suits small projects needing a spare. Select the pack size that matches your project scope from the Amount option above.

Can I use these couplings for underground or buried pipe installations?

PVC is widely used in buried applications due to its corrosion resistance and durability. Ensure the joint is properly sealed with PTFE tape and that the burial depth and soil conditions are appropriate for the pipe pressure rating. For critical buried installations, consult local plumbing codes for approved fitting types.

🛒 Select your Colour, Size, and Amount above, then add to cart.

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