1/2″ Push Fit × 5/8″ BSP Female Thread John Guest Female Adaptor Flat End

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  • Regular price £5.99


The John Guest PI451615FS Female Adaptor offers a quick and reliable solution for converting a 1/2" John Guest push-fit connection to a 5/8" BSP flat end female thread. Designed for use across a wide range of industries, this adaptor ensures a secure and leak-tight fit without the need for tools, heat, or sealants.

Manufactured in durable grey acetal copolymer with a food-grade nitrile O-ring, this fitting is ideal for use in drink dispense, food processing, water filtration, CO₂/N₂ gas lines, as well as air and pneumatic systems. Its corrosion-resistant build and demountable design allow for quick installation, easy maintenance, and system flexibility.


Product Highlights:

  • 1/2" Push-Fit x 5/8" BSP Female Thread – Easily convert from metric push-fit tubing to a standard British BSP female thread.

  • Push-Fit Simplicity – No tools required. Simply push in the pipe for a secure, leak-free seal.

  • Safe, Hygienic & Food-Grade – Constructed from high-quality acetal copolymer, suitable for potable liquids and inert gases.

  • Fully Demountable – Quick to disconnect and reconnect for modifications or maintenance without compromising performance.

  • Corrosion Resistant – Designed to last in demanding environments with minimal scale build-up and consistent flow.


⚙️ Technical Specifications:

  • Fitting Type: Female Adaptor Flat End

  • Push-Fit Size: 1/2" (12.7mm)

  • Thread Size: 5/8" BSP Flat End Female

  • Material: Grey Acetal Copolymer

  • Seal: Food-Grade Nitrile O-Ring

  • Operating Pressure: Up to 10 bar

  • Temperature Range: 0°C to +70°C

  • Food Grade: Yes

  • Tool-Free Installation: Yes

  • Demountable: Yes


🔧 Typical Applications:

  • Drink Dispense Systems (beer, soft drinks, water)

  • Gas Dispense Lines (CO₂, N₂, mixed gas)

  • Food and Beverage Equipment

  • Water Purification and Filtration Systems

  • Compressed Air and Pneumatic Installations

  • Vacuum Systems


Trusted worldwide and manufactured in the UK, John Guest’s PI451615FS provides a cost-effective, time-saving connection method with professional-grade performance. Ideal for OEMs, engineers, and installers working in hygienic and high-spec environments.