The McAlpine BN2 White Plastic Backnut with Rubber Washer is a plumbing accessory used to secure a...The McAlpine BN2 White Plastic Backnut with Rubber Washer is a plumbing accessory used to secure a pipe or fitting in place. It is made of white plastic and has a threaded inner surface for screwing onto pipes or fittings. A rubber washer ensures a tight, leak-free seal. This backnut is commonly used in bathrooms, kitchens, and other water-using areas. It is easy to install, requiring no special tools, making it suitable for professionals and DIY enthusiasts. The McAlpine BN2 is a reliable and cost-effective accessory for secure plumbing installations. Available sizes include 1.25", 1.5", 1.75", and 2" BSP, with multiple flange sizes available. This specific model is 1.5" BSP with a 70mm flange diameter.
This guide is for plumbers and DIY enthusiasts using the McAlpine BN2 White Plastic Backnut. The primary benefit is a secure, leak-free seal for your plumbing installations. Note that while easy to install, it's crucial to select the correct size for your pipes. This guide provides detailed instructions and helpful tips to ensure proper installation and long-lasting performance of the McAlpine BN2 backnut.
All features
Colour
White
Model Part Number
BN2
Brand
McAlpine
Extended Product Information
FAQs
What tools do I need to install the McAlpine BN2?
No special tools are required; hand-tightening is sufficient.
What material is the backnut made of?
The backnut is made of white plastic.
How do I prevent leaks?
Ensure the backnut is tightened correctly and the rubber washer is in good condition.
What sizes are available?
Available sizes include 1.25", 1.5", 1.75", and 2" BSP.
Where can I use the McAlpine BN2?
In bathrooms, kitchens, and other water-using areas.
How long does the backnut last?
With proper installation and care, the backnut provides long-lasting performance.
Can I use this with any type of pipe?
It is compatible with standard plumbing pipes and fittings.
Troubleshooting
Backnut leaks after installation
Tighten the backnut slightly. Ensure the rubber washer is correctly seated and not damaged.
Backnut is difficult to tighten
Check the pipe threads for debris or damage. Use a suitable lubricant if necessary. Avoid over-tightening.
Incorrect size
Replace the backnut with the correct size for your pipe fitting.
Pros and Cons
Pros
Cost-effective solution for plumbing installations.
Easy installation saves time and effort.
The rubber washer ensures a reliable seal.
Durable plastic construction.
Wide range of sizes to fit different pipe dimensions.
Cons
Plastic material may not be suitable for extremely high-pressure applications.
Requires careful tightening to avoid over-tightening and damage.
Requires selecting the correct size for proper sealing.
Not suitable for use with aggressive chemicals.
Visual inspection needed to ensure complete sealing.
Setup, Compatibility & Care
Preparation: Ensure you have the correct size backnut for your pipe fitting. Clean the pipe threads to remove debris.
Installation: Screw the backnut onto the pipe or fitting by hand until snug. Do not overtighten.
Seal Check: After installation, run water through the system to check for leaks. Tighten the backnut slightly if necessary.
Compatibility: Compatible with standard plumbing pipes and fittings. Avoid using with highly corrosive chemicals.
Care: Regularly inspect the connection for any signs of leaks or damage. Tighten as needed.