SS-ACC-012
50mm Compression Straight Coupler
Delivery or Collection
Product description
50mm Compression Straight Coupler
Our range of compression straight couplers is available in sizes from 20mm to 125mm, providing reliable joining solutions for MDPE pipework across domestic, commercial, and industrial applications.
This 50mm Compression Straight Coupler is specifically designed to create a strong, watertight connection between two equal-diameter 50mm MDPE pipes. Perfect for water supply systems, irrigation networks, and pumping installations, this fitting ensures long-term durability with quick and simple installation.
Manufactured from tough polypropylene, the coupler offers excellent resistance to impact, corrosion, and chemical exposure, making it suitable for both above-ground and buried pipework. Each unit is fitted with a high-quality NBR rubber seal for a dependable leak-proof joint, even when operating under pressure.
Fully compatible with all major metric MDPE pipe brands — including Plasson, Philmac, and Alkathene — this straight coupler is ideal for new installations as well as repairs and pipe extensions.
Key Features
- Creates a secure, watertight joint between two 50mm MDPE pipes
- Fast and easy installation with no specialist tools needed
- Polypropylene construction provides excellent corrosion and UV resistance
- Precision NBR rubber seal ensures long-term leak prevention
- Suitable for potable water applications (WRAS-approved materials)
- Compatible with all leading UK MDPE pipe systems
Typical Applications
- Mains water distribution and supply lines
- Agricultural and irrigation pipework
- Pumping stations and filtration systems
- Domestic, commercial, and industrial plumbing networks
- Pipe repairs, extensions, and upgrades
Specifications
- Pipe Size: 50mm (MDPE)
- Material: Polypropylene body with NBR rubber seal
- Pressure Rating: PN16 (16 bar)
- Standards: ISO 14236 / WRAS Approved
- Colour: Black body with blue compression nut
Can’t find what you need?
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Frequently asked questions
Practical answers from Pump Station Direct.
What does this fitting connect?
This 50mm straight coupler joins two compatible 50mm MDPE pipes of the same diameter. It is not a reducer.
How do I check compatibility before ordering?
Confirm the pipe outside diameter, material, pressure requirements and connection type. Use the fitting manufacturer’s assembly instructions and check any required pipe support. Contact Pump Station Direct on 0203 8851 996 or message us on WhatsApp.
Where can I find matching pump parts?
Browse our parts and accessories. If you need help matching an existing installation, send Pump Station Direct the model details, connection sizes and a clear photograph.


