Single tied ‘flexible pump connectors’ incorporate a single ‘set’ of convolutions and are designed to absorb relatively small amounts of lateral travel or more commonly to isolate pumps and plant equipment from the effects of vibration and shock loadings.

Single tied flexible pump connectors are ‘restrained’ expansion joints, with the integral tie-bar assembly designed to restrain the pressure thrust generated when the unit is operating under pressure, thus relatively light anchors and guides may be utilised as only minimal forces are transferred to the adjacent equipment. Single tied flexible pump bellows can be supplied with multiply convoluted membranes and rubber top-hat anti vibration washers, or with metallic spherical washers for higher pressure/temperature applications. Flexible pump bellows can also be supplied without tie bars.