Mechanical Fittings

Our range of mechanical lab drainage fittings is designed to provide a robust, flexible and serviceable solution for demanding chemical waste applications. Manufactured by Durapipe, these fittings form part of a proven laboratory drainage system widely specified in schools, universities, hospitals, research facilities and industrial laboratories.

Made from black co-polymer polypropylene, Durapipe mechanical fittings offer excellent resistance to a wide range of aggressive chemicals, making them ideal for safely conveying corrosive and high-temperature effluents away from critical environments.

Mechanical fittings are particularly valued in laboratory settings where adaptability, inspection and future modification are important. Unlike solvent-welded joints, these fittings are fully demountable, allowing systems to be altered, extended or maintained with minimal disruption.

Key benefits include:

• Olive seal jointing system
  • Each fitting uses an olive seal located in a precision-cut groove in the pipe, creating a secure, leak-free connection without bonding or welding.
• Fast, clean installation
  • No curing times, no fumes and no specialist welding equipment required.
• Easy maintenance & reconfiguration
  • Ideal for laboratories where layouts and equipment change over time.
• Fully compatible systems
  • Mechanical and Enfusion fittings can be used together within the same pipework installation.

This category includes a wide selection of mechanical fittings to cover both standard drainage layouts and specialist laboratory requirements, including:

• Couplings & reducers - straight and reducing couplings, flexible drain couplers and adaptor couplings for transitions and repairs
• Threaded connections - BSP male and female adaptors and reducers for interfacing with threaded equipment and valves
• Bends & direction changes - swept bends, slow bends, loose-nut bends and 135° options to maintain smooth flow and reduce blockage risk
• Branch fittings - swept tees, reducing tees, single and double Y-branches, and corner branches for complex drainage layouts
• Access & maintenance components - access pipes, blanking plugs and saddle clamps for inspection and future system expansion
• Flow protection & control - U-bends, anti-siphon units and air admittance valves to protect trap seals and maintain correct system pressure
• Specialist connections - glass adaptors and thermal stress relief units for sensitive laboratory apparatus
• Flanges & sealing - BS10 undrilled flanges and matching flange gaskets for bolted connections to tanks or vessels

Durapipe mechanical fittings are engineered specifically for chemical waste systems. The polypropylene construction provides excellent resistance to acids, alkalis and solvents commonly found in laboratory effluent.

For confidence in material compatibility, we recommend consulting the chemical resistance guide before specifying your system.

Whether you’re installing a new laboratory drainage system or modifying an existing one, mechanical fittings provide the flexibility, reliability and chemical performance required in modern lab environments. Combined with Durapipe Enfusion components, they offer a complete, fully matched system that’s built to adapt as your facility evolves.