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Flexible pipe connectors

Rubber Expansion Joints

There are many types of flexible pipe connectors and expansion joints produced by Mason Industries. This page gives a brief overview with links to more specific product details.

When fluid is pumped around a system, it normally happens as a series of pulses rather than a smooth flow. The nature and frequency of the pulses depends on the pump, but they can have undesirable effects.

Pulses can easily be carried around the building through the pipe network, possibly causing noise and/or vibration problems and sometimes the energy is sufficient to cause damage to the pipes over time.

Varieties of connector

The fluid pressure increases as the pulse passes through the connector. This expands the rubber arch or arches of the connector outwards, absorbing energy. This greatly reduces or eliminates the pulse. Flexible connectors are therefore most commonly used on the inlet and outlets of pumps and similar equipment.

Mason U.K. can supply a great variety of flexible connectors. Some of the options available are:


Ľ A variety of elastomers to suit the application, including natural rubber, Butyl, EPDM, neoprene, Teflon and nitrile.

Ľ Reinforcement can be Nylon or stronger materials such as Kevlar

Ľ Some of our connectors (Safeflex) have steel rings rather than wire to prevent the carcass pulling out - unique to Mason products. No Safeflex connector has ever failed in service.

Ľ Ductile iron and a variety of stainless steel grade flanges available.


Total support

Mason U.K. can provide your project with full support, whether aiding with product selection or design, or providing calculations and drawings for pipeline modelling.

Further product details can be found below.




Related Products

Super Flex Pipe Connectors

Super-Flex expansion joints were designed after years of application experience. Manufactured using heated hydraulic presses and moulds resulted in high operating pressures with great safety factors. Good carcass reinforcing, excellent aging & temperature resistance.

MFNC Twin EPDM Connector & Expansion Joint
Mason UK Ltd -  MFNC Twin EPDM Connector & Expansion Joint View Datasheet

MFNC Single EPDM Connector & Expansion Joint
Mason UK Ltd -  MFNC Single EPDM Connector & Expansion Joint View Datasheet

Safe Flex Pipe Connectors

These connectors are not wire reinforced; they are constructed of multiple plies of Kevlar tire cord and EPDM in a manufacturing process very similar to the manufacture of truck tires. The design of the Safelex connector incorporates several safety measures eliminating the need for control rods

SFDCR Concentric Reducer
Mason UK Ltd -  SFDCR Concentric Reducer View Datasheet

SFDEJ Double EPDM Connector & Expansion Joint
Mason UK Ltd -  SFDEJ Double EPDM Connector & Expansion Joint View Datasheet

SFEJ Single EPDM Connector & Expansion Joint
Mason UK Ltd -  SFEJ Single EPDM Connector & Expansion Joint View Datasheet

SFU Single Sphere EPDM Expansion Joint
Mason UK Ltd -  SFU Single Sphere EPDM Expansion Joint View Datasheet