Diagnosis Archives - Sarum Hydraulics

By John Foster|2018-03-02T16:13:50+00:00July 29th, 2014|Blog|

We certainly know our seals here, we've been designing pumps for 30 years! Here's some of what we've learnt: Think carefully about designing in a seal unique to one manufacturer. It is a right headache if they are suddenly on a 16 week lead. There are Chinese seals and Chinese seals. Bearing in mind that [...]

When pressure testing is more than proof testing. The science of diagnosing where it is leaking.

By John Foster|2018-03-02T16:12:29+00:00March 19th, 2014|Blog|

A hydrostatic pressure or proof test is a very blunt tool. Pressurise it up to a factor in excess of working pressure and check there is no leakage or deformation which would indicate design, manufacturing or safety issues. Unfortunately, our experience has been that a blast of high pressure is not the miracle tool if [...]