MDPE or medium density polyethylene is a reliable and highly versatile material that has proven it...MDPE or medium density polyethylene is a reliable and highly versatile material that has proven itself across a wide range of plumbing products providing a stable and economical platform for domestic and commercial installations. We have a wide array of medium density polyethene fittings to suit your latest hot or cold plumbing project, no matter the scope or scale. Taking you from parts list to job Hand tight only Captive O ring seal Lifetime protection WRAS approved Withstands up to 16 bar Variety of applications Used for connecting water mains pipes and any water supply pipes Size 25mm, Weight: 0.1543235834 Pounds, Manufacturer: B2C
This guide is for plumbers and DIY enthusiasts working on domestic and commercial plumbing projects. The MDPE Compression Connector Fittings offer a reliable and versatile solution for connecting water mains and supply pipes, providing a stable platform for hot or cold water systems. A key caveat to remember is that these fittings are hand-tight only; overtightening can damage the seal.
All features
Model Part Number
1561MD
Brand
B2C
Extended Product Information
FAQs
What does 'hand tight only' mean for these fittings?
It means you should tighten the compression nut using only your hands until it feels snug and secure. Using wrenches or pliers can overtighten the fitting, potentially damaging the O-ring seal or the pipe, leading to leaks.
Can I use these fittings with older lead or copper pipes?
No, these fittings are specifically designed for MDPE or LDPE pipes. They are not compatible with lead or copper piping systems without the use of appropriate transition fittings.
What is the maximum pressure these fittings can handle?
These fittings are rated to withstand up to 16 bar of pressure, making them suitable for most standard domestic and commercial water supply applications.
Are these fittings suitable for underground use?
Yes, MDPE is a durable material commonly used for underground water mains. Ensure the connection is made correctly and buried appropriately according to local regulations.
What does WRAS approved mean?
WRAS approval signifies that the product has been tested and meets the Water Regulations Advisory Scheme standards for water quality and safety in the UK. It ensures the fitting will not contaminate the water supply.
How do I ensure a good seal with the captive O-ring?
Ensure the pipe is pushed in fully and the nut is hand-tightened securely. The O-ring is designed to create a seal against the pipe surface and the fitting body when compressed.
Can these fittings be used for both hot and cold water?
Yes, MDPE is a versatile material suitable for both hot and cold domestic water installations.
Troubleshooting
Leak at the connection point
Ensure the pipe is fully inserted and the nut is hand-tightened firmly. Check the O-ring seal for damage or debris. Ensure the pipe end is cut squarely.
Difficulty inserting pipe
Ensure you are using the correct size fitting for your 25mm pipe. Slightly chamfering the pipe end can help. Verify the pipe is not deformed.
Fitting does not seal properly
Re-check that the fitting is suitable for the pipe type and size. Ensure the captive O-ring is correctly seated and undamaged. Hand-tighten firmly without over-tightening.
Pros and Cons
Pros
Durable and reliable MDPE material
Suitable for both hot and cold water systems
High pressure resistance (up to 16 bar)
WRAS approved for safety and compliance
Simple hand-tight installation process
Long-lasting performance with lifetime protection
Cons
Requires careful hand-tightening to avoid damage
Specific 25mm size may limit immediate compatibility with other pipe diameters
Primarily designed for MDPE/LDPE pipes, not universal across all pipe types
Overtightening can compromise the captive O-ring seal
Not suitable for extremely high temperatures beyond standard hot water systems
Setup, Compatibility & Care
Setup:
Ensure the end of the MDPE pipe is cut squarely and is free from burrs or damage.
Gently insert the pipe fully into the compression fitting until it is seated correctly.
Hand-tighten the compression nut firmly. Do not use tools to tighten, as this can damage the O-ring seal and the pipe.
Compatibility:
Designed specifically for use with 25mm MDPE (Medium Density Polyethylene) or LDPE (Low Density Polyethylene) water pipes.
Features a 3/4" BSP (British Standard Pipe) male thread for connection to other fittings or valves.
Care:
These fittings require no regular maintenance.
Periodically inspect connections for any signs of visible damage or leaks, though the durable MDPE material is resistant to degradation.