Straight Coupling

Poly Straight Coupling – Black Polyethylene (PE)

Black Polyethylene Straight Couplings (also known as sockets) are designed to connect two BSP threaded pipes or fittings of the same size securely. Manufactured from high-quality polypropylene, these couplings are strong, lightweight, and resistant to chemicals, corrosion, and UV exposure—making them suitable for long-term performance in demanding plumbing and irrigation systems.

Compliant with AS/NZS 4020 standards, these fittings deliver reliability across residential, commercial, and agricultural applications. Many brands also carry WaterMark approval, ensuring compliance with Australian plumbing requirements.

Key Features

• Strong & Durable Construction – Made from high-grade polypropylene for long service life.
• Chemical & UV Resistant – Performs well in outdoor and industrial applications.
• BSP Thread Compatibility – Designed for seamless fitment with BSP threaded pipes and fittings.
• High Pressure Ratings – Supports up to PN16 depending on size.
• WaterMark Approved (many brands) – Ensures compliance with Australian standards.
• Easy Installation – Best used with white Teflon thread sealant.
• Versatile Applications – Suitable for irrigation, plumbing, and mains water connections (licensed plumber required).

Specifications

• Material: Black Polyethylene (PE) / Polypropylene
• Thread Type: BSP (British Standard Pipe) – Female x Female
• Pressure Ratings:
• Up to PN16 (1600 kPa / 235 psi) for sizes up to 2"
• PN12 (1200 kPa / 175 psi) for 2-1/2"
• PN10 (1000 kPa / 145 psi) for 3" and 4"
• Sizes Available: 12mm to 65mm (see variants below)
• Sealant Recommendation: White Teflon tape

Variants (SKU – Size)

• PBF001 — 12mm FI x 12mm FI
• PBF002 — 20mm FI x 20mm FI
• PBF003 — 25mm FI x 25mm FI
• PBF004 — 32mm FI x 32mm FI
• PBF005 — 40mm FI x 40mm FI
• PBF006 — 50mm FI x 50mm FI
• PBF007 — 65mm FI x 65mm FI

Note: A licensed plumber must be used when installing fittings connected to mains water supply.