Rotec are proud to have commissioned four new Hydraulic Power Units (HPUs), located at The Saltersford Large Lock, in Barnton, Cheshire.

Once a busy commercial waterway, the canal is now only used by leisure traffic and the occasional barge or larger ship.

Rotec were asked to design, manufacture, install and commission four HPUs, each one to control a sluice and lock gate cylinder.

HPUs (sometimes referred to as hydraulic power packs) are a self-contained system that incorporate a motor, a fluid reservoir, and a pump. Through pressure and enclosed fluid, energy is transferred to subsequently create rotary motion, linear motion, or force. Hydraulic systems enable smaller forces to be multiplied into bigger forces.

The four HPUs on this project each comprised a 200-litre oil reservoir manufactured in 316 stainless steel, electric motor, bell housing, coupling assembly, hydraulic pump, pressure filter and control valve assembly.

Designed to operate at a flow of 23 litre/min at a pressure of 160 Bar, the pressure can be increased to a maximum of 250 Bar.

Dale Lockart, Stroud Service Centre Manager, commented,

It was a pleasure to support this project from the design phase, right through to the commissioning of the four Hydraulic Power Packs. We look
forward to working on similar projects and with our clients again in the future.